10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)
þ	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the quarterly period ended September 30, 2010
or
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the transition period from          to          .

Commission file no. 001-13831

Quanta Services, Inc.

(Exact name of registrant as specified in its charter)

Delaware	74-2851603
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1360 Post Oak Blvd.
Suite 2100
Houston, Texas 77056
(Address of principal executive offices, including zip code)

(Registrant’s telephone number, including area code)
(713) 629-7600

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  þ     No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes  þ     No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer þ Accelerated filer o Non-accelerated filer o Smaller reporting company o

(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes o     No þ

211,170,379 shares of Common Stock were outstanding as of November 2, 2010. As of the same date, 432,485 shares of Limited Vote Common Stock were outstanding.

QUANTA SERVICES, INC. AND SUBSIDIARIES

INDEX

			Page
PART I. FINANCIAL INFORMATION
	ITEM 1.	Condensed Consolidated Financial Statements (Unaudited)
		QUANTA SERVICES, INC. AND SUBSIDIARIES
		Condensed Consolidated Balance Sheets	2
		Condensed Consolidated Statements of Operations	3
		Condensed Consolidated Statements of Cash Flows	4
		Notes to Condensed Consolidated Financial Statements	5
	ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	28
	ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	51
	ITEM 4.	Controls and Procedures	52
PART II. OTHER INFORMATION
	ITEM 1.	Legal Proceedings	53
	ITEM 1A.	Risk Factors	53
	ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	53
	ITEM 6.	Exhibits	54
Signature			55
EX-31.1
EX-31.2
EX-32.1
EX-101 INSTANCE DOCUMENT
EX-101 SCHEMA DOCUMENT
EX-101 CALCULATION LINKBASE DOCUMENT
EX-101 LABELS LINKBASE DOCUMENT
EX-101 PRESENTATION LINKBASE DOCUMENT

1

QUANTA SERVICES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands, except share information)
(Unaudited)

	September 30,			December 31,
	2010			2009
ASSETS
Current Assets:
Cash and cash equivalents	$	441,247		$	699,629
Accounts receivable, net of allowances of $5,769 and $8,119		787,580			688,260
Costs and estimated earnings in excess of billings on uncompleted contracts		266,032			61,239
Inventories		46,445			33,451
Prepaid expenses and other current assets		79,958			100,213
Total current assets		1,621,262			1,582,792
Property and equipment, net of accumulated depreciation of $407,787 and $383,714		864,279			854,437
Other assets, net		39,317			45,345
Other intangible assets, net of accumulated amortization of $124,501 and $96,167		156,501			184,822
Goodwill		1,449,603			1,449,558
Total assets	$	4,130,962		$	4,116,954
LIABILITIES AND EQUITY
Current Liabilities:
Current maturities of long-term debt and notes payable	$	262		$	3,426
Accounts payable and accrued expenses		440,877			422,034
Billings in excess of costs and estimated earnings on uncompleted contracts		63,258			70,228
Total current liabilities		504,397			495,688
Convertible subordinated notes, net of discount of $0 and $17,142		0			126,608
Deferred income taxes		176,879			167,575
Insurance and other non-current liabilities		211,611			216,522
Total liabilities		892,887			1,006,393
Commitments and Contingencies
Equity:
Common stock, $.00001 par value, 300,000,000 shares authorized, 213,351,903 and 211,977,811 shares issued and 210,529,056 and 209,378,308 shares outstanding		2			2
Limited Vote Common Stock, $.00001 par value, 3,345,333 shares authorized, 432,485 and 662,293 shares issued and outstanding, respectively		0			0
Additional paid-in capital		3,073,955			3,065,581
Retained earnings		195,346			75,836
Accumulated other comprehensive income		5,775			3,502
Treasury stock, 2,822,847 and 2,599,503 common shares, at cost		(39,994	)		(35,738	)
Total stockholders’ equity		3,235,084			3,109,183
Noncontrolling interest		2,991			1,378
Total equity		3,238,075			3,110,561
Total liabilities and equity	$	4,130,962		$	4,116,954

The accompanying notes are an integral part of these condensed consolidated financial statements.

2

QUANTA SERVICES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share information)
(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2010			2009			2010			2009
Revenues	$	1,206,007		$	780,794		$	2,824,792		$	2,332,703
Cost of services (including depreciation)		1,016,013			633,166			2,349,619			1,930,162
Gross profit		189,994			147,628			475,173			402,541
Selling, general and administrative expenses		82,037			71,018			245,163			217,591
Amortization of intangible assets		13,396			5,448			28,334			15,260
Operating income		94,561			71,162			201,676			169,690
Interest expense		(269	)		(2,816	)		(4,660	)		(8,437	)
Interest income		418			338			1,166			2,047
Loss on early extinguishment of debt		0			0			(7,107	)		0
Other income (expense), net		479			592			371			826
Income before income taxes		95,189			69,276			191,446			164,126
Provision for income taxes		31,489			5,320			70,323			45,036
Net income		63,700			63,956			121,123			119,090
Less: Net income attributable to noncontrolling interest		920			520			1,613			873
Net income attributable to common stock	$	62,780		$	63,436		$	119,510		$	118,217
Earnings per share attributable to common stock:
Basic earnings per share	$	0.30		$	0.32		$	0.57		$	0.60
Diluted earnings per share	$	0.30		$	0.32		$	0.57		$	0.59
Shares used in computing earnings per share:
Weighted average basic shares outstanding		209,428			198,608			209,125			198,618
Weighted average diluted shares outstanding		211,096			205,224			210,798			198,815

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

QUANTA SERVICES, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2010			2009			2010			2009
Cash Flows from Operating Activities:
Net income	$	63,700		$	63,956		$	121,123		$	119,090
Adjustments to reconcile net income to net cash provided by (used in) operating activities —
Depreciation		26,502			20,574			80,377			60,537
Amortization of intangibles		13,396			5,448			28,334			15,260
Non-cash interest expense		0			1,093			1,704			3,218
Amortization of debt issuance costs		119			230			523			691
Amortization of deferred revenues		(2,733	)		(3,397	)		(9,702	)		(10,316	)
Loss on sale of property and equipment		3,287			883			4,164			1,518
Non-cash loss on early extinguishment of debt		0			0			4,797			0
Foreign currency (gain) loss		(368	)		(634	)		0			(634	)
Provision for (recovery of) doubtful accounts, net		186			156			(788	)		2,088
Deferred income tax provision		21,129			28,764			27,052			33,346
Non-cash stock-based compensation		5,703			4,969			17,465			14,635
Tax impact of stock-based equity awards		17			(115	)		(1,970	)		1,593
Changes in operating assets and liabilities, net of non-cash transactions — (Increase) decrease in —
Accounts and notes receivable		(113,914	)		75,205			(94,145	)		136,158
Costs and estimated earnings in excess of billings on uncompleted contracts		(137,845	)		(12,560	)		(204,598	)		(7,096	)
Inventories		(5,693	)		(3,391	)		(12,928	)		(5,545	)
Prepaid expenses and other current assets		(8,568	)		(9,760	)		3,927			(7,496	)
Increase (decrease) in —
Accounts payable and accrued expenses and other non-current liabilities		59,853			(48,792	)		21,687			(78,886	)
Billings in excess of costs and estimated earnings on uncompleted contracts		20,318			(15,284	)		(6,976	)		540
Other, net		204			614			(1,378	)		(112	)
Net cash provided by (used in) operating activities		(54,707	)		107,959			(21,332	)		278,589
Cash Flows from Investing Activities:
Proceeds from sale of property and equipment		7,147			2,075			21,254			4,779
Additions of property and equipment		(31,674	)		(36,012	)		(114,044	)		(120,852	)
Cash paid for acquisitions, net of cash acquired		0			(14,148	)		0			(14,148	)
Net cash used in investing activities		(24,527	)		(48,085	)		(92,790	)		(130,221	)
Cash Flows from Financing Activities:
Proceeds from other long-term debt		0			123			0			2,218
Payments on other long-term debt		(41	)		(129	)		(3,397	)		(3,376	)
Payments on convertible notes		0			0			(143,750	)		0
Tax impact of stock-based equity awards		(17	)		115			1,970			(1,593	)
Exercise of stock options		36			504			456			646
Net cash provided by (used in) financing activities		(22	)		613			(144,721	)		(2,105	)
Effect of foreign exchange rate changes on cash and cash equivalents		685			(805	)		461			(126	)
Net increase (decrease) in cash and cash equivalents		(78,571	)		59,682			(258,382	)		146,137
Cash and cash equivalents, beginning of period		519,818			524,356			699,629			437,901
Cash and cash equivalents, end of period	$	441,247		$	584,038		$	441,247		$	584,038
Supplemental disclosure of cash flow information:
Cash (paid) received during the period for —
Interest paid	$	(149	)	$	(3,037	)	$	(3,346	)	$	(5,931	)
Redemption premium on convertible subordinated notes	$	0		$	0		$	(2,310	)	$	0
Income taxes paid	$	(24,617	)	$	(6,264	)	$	(90,293	)	$	(38,405	)
Income tax refunds	$	2,266		$	791		$	8,152		$	2,160

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1.   BUSINESS AND ORGANIZATION:

Quanta Services, Inc. (Quanta) is a leading national provider of specialized contracting services, offering infrastructure solutions to the electric power, natural gas, oil and telecommunications industries. Quanta reports its results under four reportable segments: (1) Electric Power Infrastructure Services, (2) Natural Gas and Pipeline Infrastructure Services, (3) Telecommunications Infrastructure Services and (4) Fiber Optic Licensing.

Electric Power Infrastructure Services Segment

The Electric Power Infrastructure Services segment provides comprehensive network solutions to customers in the electric power industry. Services performed by the Electric Power Infrastructure Services segment generally include the design, installation, upgrade, repair and maintenance of electric power transmission and distribution networks and substation facilities along with other engineering and technical services. This segment also provides emergency restoration services, including repairing infrastructure damaged by inclement weather, the energized installation, maintenance and upgrade of electric power infrastructure utilizing unique bare hand and hot stick methods and our proprietary robotic arm technologies, and the installation of “smart grid” technologies on electric power networks. In addition, this segment designs, installs and maintains wind turbine facilities and solar arrays and related switchyards and transmission networks for renewable power generation sources. To a lesser extent, this segment provides services such as the design, installation, maintenance and repair of commercial and industrial wiring, installation of traffic networks and the installation of cable and control systems for light rail lines.

Natural Gas and Pipeline Infrastructure Services Segment

The Natural Gas and Pipeline Infrastructure Services segment provides comprehensive network solutions to customers involved in the transportation of natural gas, oil and other pipeline products. Services performed by the Natural Gas and Pipeline Infrastructure Services segment generally include the design, installation, repair and maintenance of natural gas and oil transmission and distribution systems, compressor and pump stations and gas gathering systems, as well as related trenching, directional boring and automatic welding services. In addition, this segment’s services include pipeline protection, pipeline integrity and rehabilitation and fabrication of pipeline support systems and related structures and facilities. This segment also provides emergency restoration services, including repairing natural gas and oil pipeline infrastructure damaged by inclement weather. To a lesser extent, this segment designs, installs and maintains airport fueling systems as well as water and sewer infrastructure.

Telecommunications Infrastructure Services Segment

The Telecommunications Infrastructure Services segment provides comprehensive network solutions to customers in the telecommunications and cable television industries. Services performed by the Telecommunications Infrastructure Services segment generally include the design, installation, repair and maintenance of fiber optic, copper and coaxial cable networks used for video, data and voice transmission, as well as the design and installation of wireless communications towers and switching systems. This segment also provides emergency restoration services, including repairing telecommunications infrastructure damaged by inclement weather. To a lesser extent, services provided under this segment include cable locating, splicing and testing of fiber optic networks and residential installation of fiber optic cabling.

Fiber Optic Licensing Segment

The Fiber Optic Licensing segment designs, procures, constructs and maintains fiber optic telecommunications infrastructure in select markets and licenses the right to use these point-to-point fiber optic telecommunications facilities to its customers pursuant to licensing agreements, typically with lease terms from five to twenty-five years, inclusive of certain renewal options. Under those agreements, customers are provided the right to use a portion of the capacity of a fiber optic facility, with the facility owned and maintained by Quanta. The Fiber Optic

5

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Licensing segment provides services to enterprise, education, carrier, financial services and healthcare customers and other entities with high bandwidth telecommunication needs. The telecommunication services provided through this segment are subject to regulation by the Federal Communications Commission and certain state public utility commissions.

Acquisitions

On October 1, 2009, Quanta acquired Price Gregory Services, Incorporated (Price Gregory). In connection with the acquisition, Quanta issued approximately 10.9 million shares of Quanta common stock valued at approximately $231.8 million and paid approximately $95.8 million in cash to the stockholders of Price Gregory. As the transaction was effective October 1, 2009, the results of Price Gregory have been included in the consolidated financial statements beginning on such date. Price Gregory provides natural gas and oil transmission pipeline infrastructure services in North America, specializing in the construction of large diameter transmission pipelines. Price Gregory’s financial results have been and will generally be included in Quanta’s Natural Gas and Pipeline Infrastructure Services segment.

At various times during 2009, Quanta acquired three other businesses that predominately provide electric power and telecommunications services, and the results for such businesses are reflected in Quanta’s consolidated financial statements as of their respective acquisition dates. These acquisitions allow Quanta to further expand its capabilities and scope of services in various locations around the United States.

On October 25, 2010, Quanta acquired Valard Construction LP and certain of its affiliated entities (Valard), an electric power infrastructure services company based in Alberta, Canada. In connection with the acquisition, Quanta paid the shareholders of Valard approximately $118.9 million in cash and issued an aggregate of approximately 4.5 million in Quanta common shares and exchangeable shares of a Canadian subsidiary of Quanta valued at approximately $88.5 million. The exchangeable shares are substantially equivalent to, and exchangeable on a one-for-one basis for, Quanta common shares. On the date of the acquisition, Quanta also repaid approximately $12.5 million in Valard debt. This acquisition allows Quanta to further expand its capabilities and scope of services in Canada.

2.   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

Principles of Consolidation

The consolidated financial statements of Quanta include the accounts of Quanta and its wholly owned subsidiaries, which are also referred to as its operating units. The consolidated financial statements also include the accounts of certain of Quanta’s investments in joint ventures, which are either consolidated or partially consolidated, as discussed in the following summary of significant accounting policies. All significant intercompany accounts and transactions have been eliminated in consolidation. Unless the context requires otherwise, references to Quanta include Quanta and its consolidated subsidiaries.

Interim Condensed Consolidated Financial Information

These unaudited condensed consolidated financial statements have been prepared pursuant to the rules of the Securities and Exchange Commission (SEC). Certain information and footnote disclosures, normally included in annual financial statements prepared in accordance with accounting principles generally accepted in the United States, have been condensed or omitted pursuant to those rules and regulations. Quanta believes that the disclosures made are adequate to make the information presented not misleading. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary to fairly state the financial position, results of operations and cash flows with respect to the interim consolidated financial statements have been included. The results of operations for the interim periods are not necessarily indicative of the results for the entire fiscal year. The results of Quanta have historically been subject to significant seasonal fluctuations.

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QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Quanta recommends that these unaudited condensed consolidated financial statements be read in conjunction with the audited consolidated financial statements and notes thereto of Quanta and its subsidiaries included in Quanta’s Annual Report on Form 10-K for the year ended December 31, 2009, which was filed with the SEC on March 1, 2010.

Use of Estimates and Assumptions

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities known to exist as of the date the financial statements are published and the reported amount of revenues and expenses recognized during the periods presented. Quanta reviews all significant estimates affecting its consolidated financial statements on a recurring basis and records the effect of any necessary adjustments prior to their publication. Judgments and estimates are based on Quanta’s beliefs and assumptions derived from information available at the time such judgments and estimates are made. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of financial statements. Estimates are primarily used in Quanta’s assessment of the allowance for doubtful accounts, valuation of inventory, useful lives of assets, fair value assumptions in analyzing goodwill, other intangibles and long-lived asset impairments, valuation of derivative contracts, purchase price allocations, liabilities for self-insured claims, convertible debt, revenue recognition for construction contracts and fiber optic licensing, share-based compensation, operating results of reportable segments, provision for income taxes and the calculation of uncertain tax positions.

Cash and Cash Equivalents

Quanta had cash and cash equivalents of $441.2 million and $699.6 million as of September 30, 2010 and December 31, 2009. Cash consisting of interest-bearing demand deposits is carried at cost, which approximates fair value. Quanta considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents, which are carried at fair value. At September 30, 2010 and December 31, 2009, cash equivalents were $403.4 million and $636.8 million, which consisted primarily of money market mutual funds and investment grade commercial paper and are discussed further in “Fair Value Measurements” below. As of September 30, 2010 and December 31, 2009, cash and cash equivalents held in domestic bank accounts was approximately $432.4 million and $669.8 million and cash and cash equivalents held in foreign bank accounts was approximately $8.8 million and $29.8 million.

Current and Long-term Accounts and Notes Receivable and Allowance for Doubtful Accounts

Quanta provides an allowance for doubtful accounts when collection of an account or note receivable is considered doubtful, and receivables are written off against the allowance when deemed uncollectible. Inherent in the assessment of the allowance for doubtful accounts are certain judgments and estimates including, among others, the customer’s access to capital, the customer’s willingness or ability to pay, general economic and market conditions and the ongoing relationship with the customer. Under certain circumstances such as foreclosures or negotiated settlements, Quanta may take title to the underlying assets in lieu of cash in settlement of receivables. Material changes in Quanta’s customers’ business or cash flows, which may be further impacted by the continuing economic downturn and weakness in the markets, could affect its ability to collect amounts due from them. As of September 30, 2010 and December 31, 2009, Quanta had total allowances for doubtful accounts of approximately $5.8 million and $8.1 million. Should customers experience financial difficulties or file for bankruptcy, or should anticipated recoveries relating to receivables in existing bankruptcies or other workout situations fail to materialize, Quanta could experience reduced cash flows and losses in excess of current allowances provided.

The balances billed but not paid by customers pursuant to retainage provisions in certain contracts will be due upon completion of the contracts and acceptance by the customer. Based on Quanta’s experience with similar

7

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

contracts in recent years, the majority of the retention balances at each balance sheet date will be collected within the next twelve months. Current retainage balances as of September 30, 2010 and December 31, 2009 were approximately $90.3 million and $152.1 million and are included in accounts receivable. Retainage balances with settlement dates beyond the next twelve months are included in other assets, net, and as of September 30, 2010 and December 31, 2009 were $1.9 million and $2.4 million.

Within accounts receivable, Quanta recognizes unbilled receivables in circumstances such as when: revenues have been earned and recorded but the amount cannot be billed under the terms of the contract until a later date; costs have been incurred but are yet to be billed under cost-reimbursement type contracts; or amounts arise from routine lags in billing (for example, work completed one month but not billed until the next month). These balances do not include revenues accrued for work performed under fixed-price contracts as these amounts are recorded as costs and estimated earnings in excess of billings on uncompleted contracts. At September 30, 2010 and December 31, 2009, the balances of unbilled receivables included in accounts receivable were approximately $128.7 million and $96.9 million.

Goodwill and Other Intangibles

Quanta has recorded goodwill in connection with its acquisitions. Goodwill is subject to an annual assessment for impairment using a two-step fair value-based test, which Quanta performs at the operating unit level. Each of Quanta’s operating units is organized into one of three internal divisions, which are closely aligned with Quanta’s reportable segments, based on the predominant type of work performed by the operating unit at the point in time the divisional designation is made. Because separate measures of assets and cash flows are not produced or utilized by management to evaluate segment performance, Quanta’s impairment assessments of its goodwill do not include any consideration of assets and cash flows by reportable segment. As a result, Quanta has determined that its individual operating units represent its reporting units for the purpose of assessing goodwill impairments.

Quanta’s goodwill impairment assessment is performed annually at year-end, or more frequently if events or circumstances exist which indicate that goodwill may be impaired. For instance, a decrease in Quanta’s market capitalization below book value, a significant change in business climate or a loss of a significant customer, among other things, may trigger the need for interim impairment testing of goodwill associated with one or all of its reporting units. The first step of the two-step fair value-based test involves comparing the fair value of each of Quanta’s reporting units with its carrying value, including goodwill. If the carrying value of the reporting unit exceeds its fair value, the second step is performed. The second step compares the carrying amount of the reporting unit’s goodwill to the implied fair value of its goodwill. If the implied fair value of goodwill is less than the carrying amount, an impairment loss would be recorded as a reduction to goodwill with a corresponding charge to operating expense.

Quanta determines the fair value of its reporting units using a weighted combination of the discounted cash flow, market multiple and market capitalization valuation approaches, with heavier weighting on the discounted cash flow method, as in management’s opinion, this method currently results in the most accurate calculation of a reporting unit’s fair value. Determining the fair value of a reporting unit requires judgment and the use of significant estimates and assumptions. Such estimates and assumptions include revenue growth rates, operating margins, discount rates, weighted average costs of capital and future market conditions, among others. Quanta believes the estimates and assumptions used in its impairment assessments are reasonable and based on available market information, but variations in any of the assumptions could result in materially different calculations of fair value and determinations of whether or not an impairment is indicated.

Under the discounted cash flow method, Quanta determines fair value based on the estimated future cash flows of each reporting unit, discounted to present value using risk-adjusted industry discount rates, which reflect the overall level of inherent risk of a reporting unit and the rate of return an outside investor would expect to earn. Cash flow projections are derived from budgeted amounts and operating forecasts (typically a three-year model) plus an estimate of later period cash flows, all of which are evaluated by management. Subsequent period cash flows are

8

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

developed for each reporting unit using growth rates that management believes are reasonably likely to occur along with a terminal value derived from the reporting unit’s earnings before interest, taxes, depreciation and amortization (EBITDA). The EBITDA multiples for each reporting unit are based on trailing twelve-month comparable industry data.

Under the market multiple and market capitalization approaches, Quanta determines the estimated fair value of each of its reporting units by applying transaction multiples to each reporting unit’s projected EBITDA and then averaging that estimate with similar historical calculations using either a one, two or three year average. For the market capitalization approach, Quanta adds a reasonable control premium, which is estimated as the premium that would be received in a sale of the reporting unit in an orderly transaction between market participants.

For recently acquired reporting units, a step one impairment test may not indicate an implied fair value that is substantially different from the reporting unit’s carrying value. Such similarities in value are generally an indication that management’s estimates of future cash flows associated with the recently acquired reporting unit remain relatively consistent with the assumptions that were used to derive its initial fair value. During the fourth quarter of 2009, a goodwill impairment analysis was performed for each of Quanta’s operating units, which indicated that the implied fair value of each of Quanta’s operating units was substantially in excess of carrying value except for one recently acquired operating unit for which the implied fair value approximated its carrying value. Following the analysis, management concluded that no impairment was indicated at any operating unit. As discussed generally above, when evaluating the 2009 step one impairment test results, management considered many factors in determining whether or not an impairment of goodwill for any reporting unit was reasonably likely to occur in future periods, including future market conditions and the economic environment in which Quanta’s reporting units were operating. As of September 30, 2010, there were no known factors that would indicate the need for an interim impairment assessment at any of Quanta’s reporting units; however, circumstances such as continued market declines, the loss of a major customer or other factors could impact the valuation of goodwill in future periods.

Quanta’s intangible assets include customer relationships, backlog, trade names, non-compete agreements and patented rights and developed technology. The value of customer relationships is estimated using the value-in-use concept utilizing the income approach, specifically the excess earnings method. The excess earnings analysis consists of discounting to present value the projected cash flows attributable to the customer relationships, with consideration given to customer contract renewals, the importance or lack thereof of existing customer relationships to Quanta’s business plan, income taxes and required rates of return. Quanta values backlog based upon the contractual nature of the backlog within each service line, using the income approach to discount back to present value the cash flows attributable to the backlog. The value of trade names is estimated using the relief-from-royalty method of the income approach. This approach is based on the assumption that in lieu of ownership, a company would be willing to pay a royalty in order to exploit the related benefits of this intangible asset.

Quanta amortizes intangible assets based upon the estimated consumption of the economic benefits of each intangible asset or on a straight-line basis if the pattern of economic benefits consumption cannot otherwise be reliably estimated. Intangible assets subject to amortization are reviewed for impairment and are tested for recoverability whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. For instance, a significant change in business climate or a loss of a significant customer, among other things, may trigger the need for interim impairment testing of intangible assets. An impairment loss would be recognized if the carrying amount of an intangible asset is not recoverable and its carrying amount exceeds its fair value.

Investments in Joint Ventures

Quanta has an investment in a joint venture that provides infrastructure services, including the design, installation and maintenance of electric transmission and distribution systems in the northeast United States, under a contract awarded by a large utility customer. The joint venture members each own equal equity interests in the joint venture. Quanta has determined that the joint venture is a variable interest entity, with Quanta providing the majority of the subcontractor services to the joint venture, which management believes most significantly

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

influences the economic performance of the joint venture. As a result, Quanta has determined that it is the primary beneficiary of the joint venture and has accounted for the results of the joint venture on a consolidated basis. The other party’s equity interest in the joint venture has been accounted for as a noncontrolling interest as of September 30, 2010 and December 31, 2009 and for the three and nine months ended September 30, 2010 and 2009. Notes 8 and 10 contain further disclosures related to this variable interest entity.

One of Quanta’s operating units operates under the terms of an unincorporated joint venture that provides joint engineering and construction services for the design and installation of fuel storage facilities under a contract for a specific customer. The joint venture is a general partnership, and the joint venture partners each own an equal equity interest in the joint venture and participate equally in the profits and losses of the entity. Quanta has determined that its investment in this joint venture partnership represents an undivided 50% interest in the assets, liabilities, revenues and profits of the joint venture, and such amounts have been proportionally consolidated in the accompanying financial statements.

Revenue Recognition

Infrastructure Services — Through its Electric Power Infrastructure Services, Natural Gas and Pipeline Infrastructure Services and Telecommunications Infrastructure Services segments, Quanta designs, installs and maintains networks for customers in the electric power, natural gas and oil, telecommunications and cable television industries. These services may be provided pursuant to master service agreements, repair and maintenance contracts and fixed price and non-fixed price installation contracts. Pricing under these contracts may be competitive unit price, cost-plus/hourly (or time and materials basis) or fixed price (or lump sum basis), and the final terms and prices of these contracts are frequently negotiated with the customer. Under unit-based contracts, the utilization of an output-based measurement is appropriate for revenue recognition. Under these contracts, Quanta recognizes revenue as units are completed based on pricing established between Quanta and the customer for each unit of delivery, which best reflects the pattern in which the obligation to the customer is fulfilled. Under cost-plus/hourly and time and materials type contracts, Quanta recognizes revenue on an input-basis, as labor hours are incurred and services are performed.

Revenues from fixed price contracts are recognized using the percentage-of-completion method, measured by the percentage of costs incurred to date to total estimated costs for each contract. These contracts provide for a fixed amount of revenues for the entire project. Such contracts provide that the customer accept completion of progress to date and compensate Quanta for services rendered, which may be measured in terms of units installed, hours expended or some other measure of progress. Contract costs include all direct materials, labor and subcontract costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs and depreciation costs. Much of the materials associated with Quanta’s work are owner-furnished and are therefore not included in contract revenues and costs. The cost estimation process is based on the professional knowledge and experience of Quanta’s engineers, project managers and financial professionals. Changes in job performance, job conditions and final contract settlements are factors that influence management’s assessment of total contract value and the total estimated costs to complete those contracts and therefore, Quanta’s profit recognition. Changes in these factors may result in revisions to costs and income, and their effects are recognized in the period in which the revisions are determined. Provisions for losses on uncompleted contracts are made in the period in which such losses are determined to be probable and the amount can be reasonably estimated.

Quanta may incur costs subject to change orders, whether approved or unapproved by the customer, and/or claims related to certain contracts. Quanta determines the probability that such costs will be recovered based upon evidence such as past practices with the customer, specific discussions or preliminary negotiations with the customer or verbal approvals. Quanta treats items as a cost of contract performance in the period incurred if it is not probable that the costs will be recovered or will recognize revenue if it is probable that the contract price will be adjusted and can be reliably estimated. As of September 30, 2010, Quanta had approximately $40.6 million of

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

change orders and/or claims that had been included as contract price adjustments on certain contracts which were in the process of being negotiated in the normal course of business.

The current asset “Costs and estimated earnings in excess of billings on uncompleted contracts” represents revenues recognized in excess of amounts billed for fixed price contracts. The current liability “Billings in excess of costs and estimated earnings on uncompleted contracts” represents billings in excess of revenues recognized for fixed price contracts.

Fiber Optic Licensing — The Fiber Optic Licensing segment constructs and licenses the right to use fiber optic telecommunications facilities to its customers pursuant to licensing agreements, typically with terms from five to twenty-five years, inclusive of certain renewal options. Under those agreements, customers are provided the right to use a portion of the capacity of a fiber optic facility, with the facility owned and maintained by Quanta. Revenues, including any initial fees or advance billings, are recognized ratably over the expected length of the agreements, including probable renewal periods. As of September 30, 2010 and December 31, 2009, initial fees and advance billings on these licensing agreements not yet recorded in revenue were $41.8 million and $35.9 million and are recognized as deferred revenue, with $32.9 million and $25.4 million considered to be long-term and included in other non-current liabilities. Minimum future licensing revenues expected to be recognized by Quanta pursuant to these agreements at September 30, 2010 are as follows (in thousands):

	Minimum
	Future
	Licensing
	Revenues
Year Ending December 31 —
Remainder of 2010	$	22,491
2011		77,637
2012		64,310
2013		51,851
2014		35,858
Thereafter		76,795
Fixed non-cancelable minimum licensing revenues	$	328,942

Income Taxes

Quanta follows the liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recorded for future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that are expected to be in effect when the underlying assets or liabilities are recovered or settled.

Quanta regularly evaluates valuation allowances established for deferred tax assets for which future realization is uncertain. The estimation of required valuation allowances includes estimates of future taxable income. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Quanta considers projected future taxable income and tax planning strategies in making this assessment. If actual future taxable income differs from these estimates, Quanta may not realize deferred tax assets to the extent estimated.

Quanta records reserves for expected tax consequences of uncertain positions assuming that the taxing authorities have full knowledge of the position and all relevant facts. As of September 30, 2010, the total amount of unrecognized tax benefits relating to uncertain tax positions was $48.5 million, an increase from December 31, 2009 of $3.3 million. This increase in unrecognized tax benefits results from a $7.7 million increase relating to the tax positions expected to be taken for 2010 and a $4.8 million increase related to a tax position taken in a 2009 tax

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return that was filed in July 2010, partially offset by a $9.2 million decrease primarily due to the expiration of certain statutes of limitations for the 2006 tax year. Additionally, due to the expiration of certain statutes of limitations, Quanta reduced previously accrued interest expense and penalties in the provision for income taxes by recording net adjustments of $(4.6) million and $(6.4) million for the three months ended September 30, 2010 and 2009, and net adjustments of $(2.6) million and $(3.6) million for the nine months ended September 30, 2010 and 2009. Quanta believes that it is reasonably possible that within the next 12 months unrecognized tax benefits may decrease up to $9.0 million due to the expiration of certain statutes of limitations.

The income tax laws and regulations are voluminous and are often ambiguous. As such, Quanta is required to make many subjective assumptions and judgments regarding its tax positions that could materially affect amounts recognized in its future consolidated balance sheets and statements of operations.

Fair Value Measurements

The carrying values of cash equivalents, accounts receivable, accounts payable and accrued expenses approximate fair value due to the short-term nature of these instruments. For disclosure purposes, qualifying assets and liabilities are categorized into three broad levels based on the priority of the inputs used to determine their fair values. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). All of Quanta’s cash equivalents are categorized as Level 1 assets at September 30, 2010 and December 31, 2009, as all values are based on unadjusted quoted prices for identical assets in an active market that Quanta has the ability to access.

In connection with Quanta’s acquisition of Price Gregory, identifiable intangible assets acquired included goodwill, backlog, customer relationships, trade names and covenants not-to-compete. Quanta utilized the fair value premise as the primary basis for its valuation procedures, which is a market based approach to determining the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Quanta engaged the services of an independent valuation firm to assist management with this valuation process, which included assistance with the selection of appropriate valuation methodologies and the development of market-based valuation assumptions. Based on these considerations, management utilized various valuation methods, including an income approach, a market approach and a cost approach, to determine the fair value of intangible assets acquired based on the appropriateness of each method in relation to the type of asset being valued. The assumptions used in these valuation methods were analyzed and compared, where possible, to available market data, such as industry-based weighted average costs of capital and discount rates, trade name royalty rates, public company valuation multiples and recent market acquisition multiples. The level of inputs used for these fair value measurements is the lowest level (Level 3). Quanta believes that these valuation methods appropriately represent the methods that would be used by other market participants in determining fair value.

Quanta’s convertible subordinated notes, which were redeemed in full on May 14, 2010, were not required to be carried at fair value, although their fair market value was required to be disclosed. Prior to the redemption, the fair market value of Quanta’s convertible subordinated notes was subject to interest rate risk because of their fixed interest rate and market risk due to the convertible feature of the convertible subordinated notes. The fair market value of this fixed interest rate debt increased as interest rates fell and decreased as interest rates rose. The fair market value of Quanta’s convertible subordinated notes also increased as the market price of its stock rose and decreased as the market price of its stock fell. The interest and market value changes affected the fair market value of Quanta’s convertible subordinated notes but did not impact their carrying value. The fair market value of Quanta’s convertible subordinated notes was determined based upon the quoted secondary market price on or before the dates specified, which is considered a Level 2 input. The fair value of the aggregate outstanding principal amount of Quanta’s convertible subordinated notes of $143.8 million was $160.8 million at December 31, 2009.

Quanta’s derivative liabilities are classified as Level 2 liabilities at September 30, 2010 and December 31, 2009 and have a total fair market value of $0.5 million and $0.7 million. The fair values are determined based on adjusted

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

broker quotes derived from open market pricing information. These derivative liabilities are included within accounts payable and accrued liabilities in the consolidated balance sheets.

Quanta uses fair value measurements on a routine basis in its assessment of assets classified as goodwill, other intangible assets and long-lived assets held and used. In accordance with its annual impairment test during the quarter ended December 31, 2009, the carrying amount of such assets, including goodwill, was compared to its fair value. No changes in carrying amount resulted. The inputs used for fair value measurements for goodwill, other intangible assets and long-lived assets held and used are the lowest level (Level 3) inputs for which Quanta uses the assistance of third party specialists to develop valuation assumptions.

Stock-Based Compensation

Quanta recognizes compensation expense for all stock-based compensation based on the fair value of the awards granted, net of estimated forfeitures, at the date of grant. Quanta calculates the fair value of stock options using the Black-Scholes option pricing model. The fair value of restricted stock awards is determined based on the number of shares granted and the closing price of Quanta’s common stock on the date of grant. Forfeitures are estimated based upon historical activity. The resulting compensation expense from discretionary awards is recognized on a straight-line basis over the requisite service period, which is generally the vesting period, while compensation expense from performance based awards is recognized using the graded vesting method over the requisite service period. The cash flows resulting from the tax deductions in excess of the compensation expense recognized for stock options and restricted stock (excess tax benefit) are classified as financing cash flows.

Functional Currency and Translation of Financial Statements

The U.S. dollar is the functional currency for the majority of Quanta’s operations. However, Quanta has foreign operating units in Canada, for which Quanta considers the Canadian dollar to be the functional currency. Generally, the currency in which the operating unit transacts a majority of its transactions, including billings, financing, payroll and other expenditures, would be considered the functional currency, but any dependency upon the parent company and the nature of the operating unit’s operations must also be considered. Under the relevant accounting guidance, the treatment of these translation gains or losses is dependent upon management’s determination of the functional currency of each operating unit, which involves consideration of all relevant economic facts and circumstances affecting the operating unit. In preparing the consolidated financial statements, Quanta translates the financial statements of its foreign operating units from their functional currency into U.S. dollars. Statements of operations and cash flows are translated at average monthly rates, while balance sheets are translated at the month-end exchange rates. The translation of the balance sheets at the month-end exchange rates results in translation gains or losses. If transactions are denominated in the operating units’ functional currency, the translation gains and losses are included as a separate component of equity under the caption “Accumulated other comprehensive income (loss).” If transactions are not denominated in the operating units’ functional currency, the translation gains and losses are included within the statement of operations.

Derivatives

From time to time, Quanta may enter into forward currency contracts that qualify as derivatives in order to hedge the risks associated with fluctuations in foreign currency exchange rates related to certain forecasted foreign currency denominated transactions. Quanta does not enter into derivative transactions for speculative purposes; however, for accounting purposes, certain transactions may not meet the criteria for cash flow hedge accounting. For a hedge to qualify for cash flow hedge accounting treatment, a hedge must be documented at the inception of the contract, with the objective and strategy stated, along with an explicit description of the methodology used to assess hedge effectiveness. The dates (or periods) for the expected forecasted events and the nature of the exposure involved (including quantitative measures of the size of the exposure) must also be documented. At the inception of the hedge and on an ongoing basis, the hedge must be deemed to be “highly effective” at minimizing the risk of the

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

identified exposure. Effectiveness measures relate the gains or losses of the derivative to changes in the cash flows associated with the hedged item, and the forecasted transaction must be probable of occurring.

For forward contracts that qualify as cash flow hedges, Quanta accounts for the change in fair value of the forward contracts directly in equity as part of accumulated other comprehensive income (loss). Any ineffective portion of cash flow hedges is recognized in earnings in the period ineffectiveness occurs. For instance, if a forward contract is discontinued as a cash flow hedge because it is probable that the original forecasted transaction will not occur by the end of the originally specified time period, the related amounts in accumulated other comprehensive income (loss) would be reclassified to other income (expense) in the consolidated statement of operations in the period such determination is made. When a forecasted transaction occurs, the portion of the accumulated gain or loss applicable to the forecasted transaction is reclassified from equity to earnings. Changes in fair value related to transactions that do not meet the criteria for cash flow hedge accounting are recorded in the consolidated results of operations and are included in other income (expense).

Comprehensive Income

Comprehensive income includes all changes in equity during a period except those resulting from investments by and distributions to stockholders. As described above, Quanta records other comprehensive income, net of tax, for the foreign currency translation adjustment related to its foreign operations and for changes in fair value of its derivative contracts that are classified as cash flow hedges.

3.   NEW ACCOUNTING PRONOUNCEMENTS:

Adoption of New Accounting Pronouncements.

On January 1, 2010, Quanta adopted new standards aimed to improve the visibility of off-balance sheet vehicles previously exempt from consolidation and address practice issues involving the accounting for transfers of financial assets as sales or secured borrowings. The impact from the adoption of these new standards was not material.

4.   ACQUISITION:

On October 25, 2010, Quanta acquired Valard. In connection with the acquisition, Quanta (i) paid to or for the benefit of the shareholders of Valard an aggregate of approximately $118.9 million in cash, (ii) issued to certain shareholders 623,720 shares of Quanta common stock, (iii) issued to certain shareholders 3,909,110 exchangeable shares of a Canadian subsidiary of Quanta that are substantially equivalent to, and exchangeable on a one-for-one basis for, Quanta common shares, and (iv) issued to a voting trust on behalf of the holders of the exchangeable shares one share of Quanta Series F preferred stock with voting rights equivalent to Quanta common stock equal to the number of exchangeable shares outstanding at any time. The aggregate value of the above issued securities on the closing date totaled approximately $88.5 million.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

5.   GOODWILL AND OTHER INTANGIBLE ASSETS:

A summary of changes in Quanta’s goodwill between December 31, 2009 and September 30, 2010 is as follows (in thousands):

				Natural
	Electric			Gas and
	Power			Pipeline			Telecommunications
	Division			Division			Division			Total
Balance at December 31, 2009:
Goodwill	$	651,815		$	337,938		$	523,069		$	1,512,822
Accumulated impairment		0			0			(63,264	)		(63,264	)
		651,815			337,938			459,805			1,449,558
Foreign currency translation related to goodwill		76			0			0			76
Purchase price adjustments related to prior periods		(15	)		(16	)		0			(31	)
Balance at September 30, 2010:
Goodwill		651,876			337,922			523,069			1,512,867
Accumulated impairment		0			0			(63,264	)		(63,264	)
	$	651,876		$	337,922		$	459,805		$	1,449,603

As described in Note 2, Quanta’s operating units are organized into one of Quanta’s three internal divisions and accordingly, Quanta’s goodwill associated with each of its operating units has been aggregated on a divisional basis and reported in the table above. These divisions are closely aligned with Quanta’s reportable segments based on the predominant type of work performed by the operating units within the divisions.

Intangible assets are comprised of (in thousands):

											As of
	As of					Nine Months Ended					September 30,
	December 31, 2009					September 30, 2010					2010
									Foreign
	Intangible		Accumulated			Amortization			Currency		Intangible
	Assets		Amortization			Expense			Adjustments		Assets, Net
Other intangible assets:
Customer relationships	$	127,585	$	(19,234	)	$	(6,274	)	$	0	$	102,077
Backlog		92,238		(64,347	)		(17,758	)		0		10,133
Trade names		23,649		(197	)		(591	)		0		22,861
Non-compete agreements		21,439		(9,398	)		(2,761	)		13		9,293
Patented rights and developed technology		16,078		(2,991	)		(950	)		0		12,137
Total intangible assets	$	280,989	$	(96,167	)	$	(28,334	)	$	13	$	156,501

Expenses for the amortization of intangible assets were $13.4 million and $5.4 million for the three months ended September 30, 2010 and 2009 and $28.3 million and $15.3 million for the nine months ended September 30, 2010 and 2009. The remaining weighted average amortization period for all intangible assets as of September 30, 2010 is 13.2 years, while the remaining weighted average amortization periods for customer relationships, backlog, trade names, non-compete agreements and the patented rights and developed technology are 12.3 years, 0.8 years,

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

29.0 years, 2.7 years and 10.0 years, respectively. The estimated future aggregate amortization expense of intangible assets as of September 30, 2010 is set forth below (in thousands):

Year Ended December 31 —
Remainder of 2010	$	8,364
2011		15,937
2012		14,712
2013		11,828
2014		11,224
Thereafter		94,436
Total	$	156,501

6.   PER SHARE INFORMATION:

Basic earnings per share is computed using the weighted average number of common shares outstanding during the period, and diluted earnings per share is computed using the weighted average number of common shares outstanding during the period adjusted for all potentially dilutive common stock equivalents, except in cases where the effect of the common stock equivalent would be antidilutive. The amounts used to compute the basic and diluted earnings per share for the three and nine months ended September 30, 2010 and 2009 are illustrated below (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2010		2009		2010		2009
NET INCOME:
Net income attributable to common stock	$	62,780	$	63,436	$	119,510	$	118,217
Effect of convertible subordinated notes under the “if-converted” method — interest expense addback, net of taxes		0		1,659		0		0
Net income attributable to common stock for diluted earnings per share	$	62,780	$	65,095	$	119,510	$	118,217
WEIGHTED AVERAGE SHARES:
Weighted average shares outstanding for basic earnings per share		209,428		198,608		209,125		198,618
Effect of dilutive stock options		136		201		141		197
Effect of shares in escrow		1,532		0		1,532		0
Effect of convertible subordinated notes under the “if-converted” method — weighted convertible shares issuable		0		6,415		0		0
Weighted average shares outstanding for diluted earnings per share		211,096		205,224		210,798		198,815

For the three and nine months ended September 30, 2010 and 2009, a nominal number of stock options were excluded from the computation of diluted earnings per share because the grant prices of these common stock equivalents were greater than the average market price of Quanta’s common stock. For the nine months ended September 30, 2010 and 2009, the effect of assuming conversion of Quanta’s 3.75% convertible subordinated notes would have been antidilutive and therefore the shares issuable upon conversion were excluded from the calculation of diluted earnings per share. See Note 7 below regarding the redemption of the 3.75% convertible subordinated

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

notes on May 14, 2010. Shares placed in escrow related to the acquisition of Price Gregory are included in the computation of diluted earnings per share for the three and nine months ended September 30, 2010. These shares will be released from escrow when certain conditions are satisfied.

7.   DEBT OBLIGATIONS:

Credit Facility

Quanta has an agreement with various lenders that provides for a $475.0 million senior secured revolving credit facility maturing on September 19, 2012. Subject to the conditions specified in the credit facility, borrowings under the credit facility are to be used for working capital, capital expenditures and other general corporate purposes. The entire unused portion of the credit facility is available for the issuance of letters of credit.

As of September 30, 2010, Quanta had approximately $191.2 million of letters of credit issued under the credit facility and no outstanding revolving loans. The remaining $283.8 million was available for revolving loans or issuing new letters of credit. Amounts borrowed under the credit facility bear interest, at Quanta’s option, at a rate equal to either (a) the Eurodollar Rate (as defined in the credit facility) plus 0.875% to 1.75%, as determined by the ratio of Quanta’s total funded debt to consolidated EBITDA (as defined in the credit facility), or (b) the base rate (as described below) plus 0.00% to 0.75%, as determined by the ratio of Quanta’s total funded debt to consolidated EBITDA. Letters of credit issued under the credit facility are subject to a letter of credit fee of 0.875% to 1.75%, based on the ratio of Quanta’s total funded debt to consolidated EBITDA. Quanta is also subject to a commitment fee of 0.15% to 0.35%, based on the ratio of its total funded debt to consolidated EBITDA, on any unused availability under the credit facility. The base rate equals the higher of (i) the Federal Funds Rate (as defined in the credit facility) plus 1/2 of 1% or (ii) the bank’s prime rate.

The credit facility contains certain covenants, including covenants with respect to maximum funded debt to consolidated EBITDA, maximum senior debt to consolidated EBITDA and minimum interest coverage, in each case as specified in the credit facility. For purposes of calculating the maximum funded debt to consolidated EBITDA ratio and the maximum senior debt to consolidated EBITDA ratio, Quanta’s maximum funded debt and maximum senior debt are reduced by all cash and cash equivalents (as defined in the credit facility) held by Quanta in excess of $25.0 million. As of September 30, 2010, Quanta was in compliance with all of its covenants. The credit facility limits certain acquisitions, mergers and consolidations, capital expenditures, asset sales and prepayments of indebtedness and, subject to certain exceptions, prohibits liens on material assets. The credit facility also limits the payment of dividends and stock repurchase programs in any fiscal year except those payments or other distributions payable solely in capital stock. The credit facility provides for customary events of default and carries cross-default provisions with Quanta’s continuing indemnity and security agreement with its sureties and all of its other debt instruments exceeding $15.0 million in borrowings. If an event of default (as defined in the credit facility) occurs and is continuing, on the terms and subject to the conditions set forth in the credit facility, amounts outstanding under the credit facility may be accelerated and may become or be declared immediately due and payable.

The credit facility is secured by a pledge of all of the capital stock of Quanta’s U.S. subsidiaries, 65% of the capital stock of its foreign subsidiaries and substantially all of its assets. Quanta’s U.S. subsidiaries guarantee the repayment of all amounts due under the credit facility.

3.75% Convertible Subordinated Notes

Since May 14, 2010, none of Quanta’s 3.75% convertible subordinated notes (3.75% Notes) were outstanding. The 3.75% Notes were originally issued in April 2006 for an aggregate principal amount of $143.8 million and required semi-annual interest payments on April 30 and October 30 until maturity.

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QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

On May 14, 2010, Quanta redeemed all of the $143.8 million aggregate principal amount outstanding of the 3.75% Notes at a redemption price of 101.607% of the principal amount of the notes, plus accrued and unpaid interest to, but not including, the date of redemption. The redemption resulted in a payment of the aggregate redemption price of $146.1 million and the recognition of a loss on early extinguishment of debt of approximately $7.1 million. Included in the loss on early extinguishment of debt was a non-cash loss of $3.5 million related to the difference between the net carrying value and the estimated fair value of the 3.75% Notes, calculated as of the date of redemption, the payment of $2.3 million representing the 1.607% redemption premium above par value and a non-cash loss of $1.3 million from the write-off of the remaining unamortized deferred financing costs related to the 3.75% Notes.

The $126.6 million of convertible subordinated notes on the consolidated balance sheet as of December 31, 2009 is presented net of a debt discount of $17.2 million, which was being amortized as interest expense. The effective interest rate that was used to calculate total interest expense for the 3.75% Notes was 7.85%.

8.   EQUITY:

Treasury Stock

Pursuant to the stock incentive plans described in Note 9, employees may elect to satisfy their tax withholding obligations upon vesting of restricted stock by having Quanta make such tax payments and withhold a number of vested shares having a value on the date of vesting equal to their tax withholding obligation. As a result of such employee elections, Quanta withheld 223,344 and 195,733 shares of Quanta common stock with a total market value of $4.3 million and $3.5 million for settlement of employee tax liabilities during the nine months ended September 30, 2010 and 2009. These shares were accounted for as treasury stock. Under Delaware corporate law, treasury stock is not entitled to vote or be counted for quorum purposes.

Noncontrolling Interest

Quanta has a 50% interest in a joint venture that qualifies as a variable interest entity and has been included on a consolidated basis in the accompanying financial statements as described in Note 2. As a result, income attributable to the other joint venture member has been accounted for as a reduction of reported net income of approximately $0.9 million and $0.5 million related to the noncontrolling interest for the three months ended September 30, 2010 and 2009 and approximately $1.5 million and $0.9 million related to the noncontrolling interest for the nine months ended September 30, 2010 and 2009 to derive net income attributable to the common stockholders of Quanta. Equity in the consolidated assets and liabilities of the joint venture attributable to the other joint venture member has been accounted for as a noncontrolling interest component of total equity in the accompanying balance sheets.

In conjunction with the Price Gregory acquisition on October 1, 2009, Quanta acquired investments in three joint ventures of 65%, 49% and 49%. These investments, which constitute variable interest entities, have been included on a consolidated basis in the accompanying financial statements with nominal amounts recorded as net income attributable to the other joint venture members in the three and nine months ended September 30, 2010. Equity in the consolidated assets and liabilities of the joint ventures attributable to the other joint venture members has been accounted for as a noncontrolling interest component of total equity in the accompanying balance sheet.

The carrying values of the investments held by Quanta and the noncontrolling interests in the variable interest entities that have been included on a consolidated basis in the accompanying financial statements at September 30, 2010 and December 31, 2009 were $3.0 million and $1.4 million. There were no changes in equity as a result of transfers (to) from the noncontrolling interest during the period. Note 10 has further disclosures related to Quanta’s joint venture arrangements.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Comprehensive Income

Quanta’s foreign operations are translated into U.S. dollars, and a translation adjustment is recorded in other comprehensive income (loss), net of tax, as a result. Additionally, unrealized gains and losses on foreign currency cash flow hedges are also recorded in other comprehensive income (loss), net of tax. The following table presents the components of comprehensive income for the periods presented (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2010		2009			2010		2009
Net income	$	63,700	$	63,956		$	121,123	$	119,090
Foreign currency translation adjustment, net of tax		1,945		2,274			1,761		4,780
Gain (loss) on foreign currency cash flow hedges, net of tax		18		(31	)		512		(31	)
Comprehensive income		65,663		66,199			123,396		123,839
Less: Comprehensive income attributable to the noncontrolling interest		920		520			1,613		873
Comprehensive income attributable to common stock	$	64,743	$	65,679		$	121,783	$	122,966

In the third quarter of 2009, one of Quanta’s Canadian operating units entered into three forward contracts with settlement dates in December 2009, June 2010 and November 2010, to reduce foreign currency risk associated with anticipated customer sales that are denominated in South African rand. This same operating unit also entered into three additional forward contracts to reduce the foreign currency exposure associated with a series of forecasted intercompany payments denominated in U.S. dollars to be made over a twelve-month period, which also had settlement dates in December 2009, June 2010 and November 2010.

The South African rand to Canadian dollar forward contracts had an aggregate notional amount of approximately $11.0 million ($CAD) at origination, with contracts for approximately $5.8 million ($CAD) and $3.2 million ($CAD) being settled in December 2009 and June 2010. These contracts have been accounted for by the Canadian operating unit as cash flow hedges. Accordingly, changes in the fair value of the forward contracts between the South African rand and the Canadian dollar are recorded in other comprehensive income (loss) prior to their settlement and have been and will be reclassified into earnings in the periods in which the hedged transactions occur. During the three and nine months ended September 30, 2010, gains of $0.1 million and $0.2 million were recorded to other comprehensive income (loss) related to the remaining South African rand to Canadian dollar forward contract. Additionally, during the second quarter of 2010, approximately $0.1 million of loss was reclassified into current period earnings in connection with the contract settled in June 2010.

The Canadian dollar to U.S. dollar forward contracts had an aggregate notional amount of approximately $9.5 million (U.S.) at origination, with contracts for approximately $5.0 million and $2.7 million having settled in December 2009 and June 2010. Such contracts have also been accounted for as cash flow hedges. Accordingly, changes in the fair value of the forward contracts between the Canadian dollar and the U.S. dollar are recorded in other comprehensive income (loss) prior to their settlement and have been or will be reclassified into earnings in the periods in which the hedged transactions occur. During the three and nine months ended September 30, 2010, a loss of $0.1 million and a gain of $0.3 million were recorded to other comprehensive income related to the remaining Canadian dollar to U.S. dollar forward contract. Additionally, during the second quarter of 2010, approximately $0.3 million of loss was reclassified into current period earnings in connection with the contract settled in June 2010.

Effectiveness testing related to these cash flow hedges is performed at the end of each quarter. Any ineffective portion of these contracts is reclassified into earnings if the derivatives are no longer deemed to be cash flow hedges.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

For the quarter ended September 30, 2010, no portion of the South African rand to Canadian dollar or Canadian dollar to U.S. dollar forward contracts was considered ineffective.

9.   STOCK-BASED COMPENSATION:

Stock Incentive Plans

Pursuant to the Quanta Services, Inc. 2007 Stock Incentive Plan (the 2007 Plan), which was adopted on May 24, 2007, Quanta may award restricted common stock, incentive stock options and non-qualified stock options. The purpose of the 2007 Plan is to provide directors, key employees, officers and certain consultants and advisors with additional performance incentives by increasing their proprietary interest in Quanta. Prior to the adoption of the 2007 Plan, Quanta had issued awards of restricted common stock and stock options under its 2001 Stock Incentive Plan (as amended and restated March 13, 2003) (the 2001 Plan), which was terminated effective May 24, 2007, except that outstanding awards will continue to be governed by the terms of the 2001 Plan. In connection with the acquisition of InfraSource Services, Inc. (InfraSource) on August 30, 2007, Quanta assumed InfraSource’s 2003 Omnibus Stock Incentive Plan and 2004 Omnibus Stock Incentive Plan, in each case as amended (the InfraSource Plans). The InfraSource Plans were terminated in connection with the acquisition, although the terms of these plans will govern outstanding awards. The 2007 Plan, the 2001 Plan and the InfraSource Plans are referred to as the Plans.

Restricted Stock

Restricted common stock has been issued under the Plans at the fair market value of the common stock as of the date of issuance. The shares of restricted common stock issued are subject to forfeiture, restrictions on transfer and certain other conditions until they vest, which generally occurs over three or four years in equal annual installments. During the restriction period, the restricted stockholders are entitled to vote and receive dividends on such shares.

During the three months ended September 30, 2010 and 2009, Quanta granted 6,252 and 6,453 shares of restricted stock under the 2007 Plan with a weighted average grant price of $19.99 and $23.25. During the nine months ended September 30, 2010 and 2009, Quanta granted 1.1 million and 0.9 million shares of restricted stock under the 2007 Plan with a weighted average grant price of $19.20 and $22.14. Additionally, during the three months ended September 30, 2010 and 2009, 17,918 and 20,503 shares vested with an approximate fair value at the time of vesting of $0.3 million and $0.5 million. During the nine months ended September 30, 2010 and 2009, 0.7 million and 0.6 million shares vested with an approximate fair value at the time of vesting of $13.3 million and $11.3 million.

As of September 30, 2010, there was approximately $25.8 million of total unrecognized compensation cost related to unvested restricted stock granted to both employees and non-employees. This cost is expected to be recognized over a weighted average period of 1.93 years.

Stock Options

No stock options have been granted by Quanta since November 2002. As of September 30, 2010 and December 31, 2009, the number of options outstanding under the 2001 Plan, all of which have vested, was not material. Although some options granted under the InfraSource Plans assumed in connection with the InfraSource acquisition are still outstanding, certain disclosures have been omitted due to immateriality. As of September 30, 2010, there was approximately $0.1 million of total unrecognized compensation cost related to unvested stock options issued under the InfraSource Plans, which is expected to be recognized during 2010.

20

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Non-Cash Compensation Expense and Related Tax Benefits

The amounts of non-cash compensation expense and related tax benefits, as well as the amount of actual tax benefits related to vested restricted stock and options exercised are as follows (in thousands):

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2010		2009			2010			2009
Non-cash compensation expense related to restricted stock	$	5,522	$	4,383		$	16,922		$	12,890
Non-cash compensation expense related to stock options		181		586			543			1,745
Total stock-based compensation included in selling, general and administrative expenses	$	5,703	$	4,969		$	17,465		$	14,635
Actual tax benefit (expense) from vested restricted stock	$	48	$	135		$	(1,923	)	$	(1,595	)
Actual tax benefit (expense) from options exercised		0		(21	)		(16	)		14
Actual tax benefit (expense) related to stock-based compensation expense		48		114			(1,939	)		(1,581	)
Income tax benefit related to non-cash compensation expense		2,224		1,938			6,811			5,708
Total tax benefit related to stock-based compensation expense	$	2,272	$	2,052		$	4,872		$	4,127

10.   COMMITMENTS AND CONTINGENCIES:

Joint Venture Contingencies

As described in Notes 2 and 8, one of Quanta’s operating units operates in a joint venture with a third party engineering company for the purpose of providing infrastructure services under a contract with a large utility customer. Losses incurred by the joint venture are typically shared equally by the joint venture members. However, under the terms of the joint venture agreement, each member of the joint venture has guaranteed all of the obligations of the joint venture under the contract with the customer and therefore can be liable for full performance of the contract to the customer. Quanta is not aware of circumstances that would lead to future claims against it for material amounts in connection with this performance guarantee.

In addition, as described in Note 2, another of Quanta’s operating units operates in a joint venture with a third party for the purpose of providing joint engineering and construction services for the design and installation of fuel storage facilities under a contract with a specific customer. Under the joint venture agreement, the losses incurred by the joint venture are typically shared equally by the joint venture partners. However, the joint venture is a general partnership, and as such, the joint venture partners are jointly and severally liable for all of the obligations of the joint venture, including obligations owed to the customer or any other person or entity. Quanta is not aware of circumstances that would lead to future claims against it for material amounts in connection with its joint and several liability.

In each of the above joint venture arrangements, each joint venturer has indemnified the other for any liabilities incurred in excess of the liabilities for which the joint venturer is obligated to bear under the respective joint venture agreement. It is possible, however, that Quanta could be required to pay or perform obligations in excess of its share if the other joint venturer failed or refused to pay or perform its share of the obligations. Quanta is not aware of circumstances that would lead to future claims against it for material amounts that would not be indemnified.

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QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Leases

Quanta leases certain land, buildings and equipment under non-cancelable lease agreements, including related party leases. The terms of these agreements vary from lease to lease, including some with renewal options and escalation clauses. The following schedule shows the future minimum lease payments under these leases as of September 30, 2010 (in thousands):

	Operating
	Leases
Year Ending December 31 —
Remainder of 2010	$	12,699
2011		39,195
2012		25,841
2013		18,916
2014		9,400
Thereafter		13,365
Total minimum lease payments	$	119,416

Rent expense related to operating leases was approximately $27.2 million and $82.1 million for the three and nine months ended September 30, 2010 and approximately $27.3 million and $81.7 million for the three and nine months ended September 30, 2009.

Quanta has guaranteed the residual value on certain of its equipment operating leases. Quanta guarantees the difference between this residual value and the fair market value of the underlying asset at the date of termination of the leases. At September 30, 2010, the maximum guaranteed residual value was approximately $118.0 million. Quanta believes that no significant payments will be made as a result of the difference between the fair market value of the leased equipment and the guaranteed residual value. However, there can be no assurance that significant payments will not be required in the future.

Committed Capital Expenditures

Quanta has committed capital for expansion of its fiber optic network. Quanta typically does not commit capital to new network expansions until it has a committed lease arrangement in place with at least one customer. The amounts of committed capital expenditures are estimates of costs required to build the networks under contract. The actual capital expenditures related to building the networks could vary materially from these estimates. As of September 30, 2010, Quanta estimates these committed capital expenditures to be approximately $10.7 million for the period October 1, 2010 through December 31, 2010 and $8.7 million for the year ended December 31, 2011.

Litigation

Quanta is from time to time party to various lawsuits, claims and other legal proceedings that arise in the ordinary course of business. These actions typically seek, among other things, compensation for alleged personal injury, breach of contract and/or property damages, punitive damages, civil penalties or other losses, or injunctive or declaratory relief. With respect to all such lawsuits, claims and proceedings, Quanta records reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. None of these proceedings, separately or in the aggregate, are expected to have a material adverse effect on Quanta’s consolidated financial position, results of operations or cash flows.

22

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Concentration of Credit Risk

Quanta is subject to concentrations of credit risk related primarily to its cash and cash equivalents and its accounts receivable, including amounts related to unbilled accounts receivables and costs and estimated earnings in excess of billings on uncompleted contracts. Substantially all of Quanta’s cash investments are managed by what it believes to be high credit quality financial institutions. In accordance with Quanta’s investment policies, these institutions are authorized to invest this cash in a diversified portfolio of what Quanta believes to be high quality investments, which consist primarily of interest-bearing demand deposits, money market mutual funds and investment grade commercial paper with original maturities of three months or less. Although Quanta does not currently believe the principal amount of these investments is subject to any material risk of loss, the weakness in the economy has significantly impacted the interest income Quanta receives from these investments and is likely to continue to do so in the future. In addition, Quanta grants credit under normal payment terms, generally without collateral, to its customers, which include electric power, natural gas and pipeline companies, telecommunications and cable television system operators, governmental entities, general contractors, and builders, owners and managers of commercial and industrial properties located primarily in the United States. Consequently, Quanta is subject to potential credit risk related to changes in business and economic factors throughout the United States, which may be heightened as a result of ongoing depressed economic and financial market conditions. However, Quanta generally has certain statutory lien rights with respect to services provided. Under certain circumstances, such as foreclosures or negotiated settlements, Quanta may take title to the underlying assets in lieu of cash in settlement of receivables. In such circumstances, extended time frames may be required to liquidate these assets, causing the amounts realized to differ from the value of the assumed receivable. Historically, some of Quanta’s customers have experienced significant financial difficulties, and others may experience financial difficulties in the future. These difficulties expose Quanta to increased risk related to collectability of receivables and costs and estimated earnings in excess of billings on uncompleted contracts for services Quanta has performed. Two customers accounted for approximately 18% and 15% of consolidated revenues during the three months ended September 30, 2010, and one of these customers accounted for approximately 11% of consolidated revenues during the nine months ended September 30, 2010. These two customers represented approximately 14% and 11% of billed and accrued receivables at September 30, 2010. Revenues from these customers are included in the Natural Gas and Pipeline Infrastructure Services segment. No other customer represented 10% or more of revenues during the three and nine months ended September 30, 2010. No customers represented 10% or more of revenues during the three and nine months ended September 30, 2009 or of accounts receivable at December 31, 2009.

Self-Insurance

Quanta is insured for employer’s liability, general liability, auto liability and workers’ compensation claims. As of August 1, 2010, all policies were renewed with deductibles continuing at existing levels of $5.0 million per occurrence, other than employer’s liability, which continues to be subject to a deductible of $1.0 million. Quanta also has employee healthcare benefit plans for most employees not subject to collective bargaining agreements, of which the primary plan is subject to a deductible of $350,000 per claimant per year. For the policy year ended July 31, 2009, employer’s liability claims were subject to a deductible of $1.0 million per occurrence, general liability and auto liability claims were subject to a deductible of $3.0 million per occurrence, and workers’ compensation claims were subject to a deductible of $2.0 million per occurrence. Additionally, for the policy year ended July 31, 2009, Quanta’s workers’ compensation claims were subject to an annual cumulative aggregate liability of up to $1.0 million on claims in excess of $2.0 million per occurrence.

Losses under all of these insurance programs are accrued based upon Quanta’s estimates of the ultimate liability for claims reported and an estimate of claims incurred but not reported, with assistance from third-party actuaries. These insurance liabilities are difficult to assess and estimate due to unknown factors, including the severity of an injury, the determination of Quanta’s liability in proportion to other parties, the number of incidents not reported and the effectiveness of its safety program. The accruals are based upon known facts and historical trends and management believes such accruals to be adequate. As of September 30, 2010 and December 31, 2009,

23

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

the gross amount accrued for insurance claims totaled $142.8 million and $153.6 million, with $101.5 million and $109.8 million considered to be long-term and included in other non-current liabilities. Related insurance recoveries/receivables as of September 30, 2010 and December 31, 2009 were $26.5 million and $33.7 million, of which $9.4 million and $13.4 million are included in prepaid expenses and other current assets and $17.1 million and $20.3 million are included in other assets, net.

Quanta renews its insurance policies on an annual basis, and therefore deductibles and levels of insurance coverage may change in future periods. In addition, insurers may cancel Quanta’s coverage or determine to exclude certain items from coverage, or the cost to obtain such coverage may become unreasonable. In any such event, Quanta’s overall risk exposure would increase, which could negatively affect its results of operations and financial condition.

Letters of Credit

Certain of Quanta’s vendors require letters of credit to ensure reimbursement for amounts they are disbursing on its behalf, such as to beneficiaries under its self-funded insurance programs. In addition, from time to time some customers require Quanta to post letters of credit to ensure payment to its subcontractors and vendors under those contracts and to guarantee performance under its contracts. Such letters of credit are generally issued by a bank or similar financial institution. The letter of credit commits the issuer to pay specified amounts to the holder of the letter of credit if the holder demonstrates that Quanta has failed to perform specified actions. If this were to occur, Quanta would be required to reimburse the issuer of the letter of credit. Depending on the circumstances of such a reimbursement, Quanta may also have to record a charge to earnings for the reimbursement. Quanta does not believe that it is likely that any material claims will be made under a letter of credit in the foreseeable future.

As of September 30, 2010, Quanta had $191.2 million in letters of credit outstanding under its credit facility primarily to secure obligations under its casualty insurance program. These are irrevocable stand-by letters of credit with maturities generally expiring at various times throughout 2010 and 2011. Upon maturity, it is expected that the majority of these letters of credit will be renewed for subsequent one-year periods.

Performance Bonds and Parent Guarantees

In certain circumstances, Quanta is required to provide performance bonds in connection with its contractual commitments. Quanta has indemnified its sureties for any expenses paid out under these performance bonds. As of September 30, 2010, the total amount of outstanding performance bonds was approximately $1.1 billion, and the estimated cost to complete these bonded projects was approximately $246.1 million.

Quanta, from time to time, guarantees the obligations of its wholly owned subsidiaries, including obligations under certain contracts with customers, certain lease obligations and, in some states, obligations in connection with obtaining contractors licenses. Quanta has also guaranteed the obligations of its wholly owned subsidiary that is a party to the joint venture arrangement with a third party engineering company.

Employment Agreements

Quanta has various employment agreements with certain executives and other employees, which provide for compensation and certain other benefits and for severance payments under certain circumstances. Certain employment agreements also contain clauses that become effective upon a change of control of Quanta. Upon the occurrence of any of the defined events in the various employment agreements, Quanta will pay certain amounts to the employee, which vary with the level of the employee’s responsibility.

Collective Bargaining Agreements

Certain of Quanta’s operating units are parties to various collective bargaining agreements with certain of their employees. The agreements require such subsidiaries to pay specified wages, provide certain benefits to their union

24

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

employees and contribute certain amounts to multi-employer pension plans and employee benefit trusts. Quanta’s multi-employer pension plan contribution rates are determined annually and assessed on a “pay-as-you-go” basis based on its union employee payrolls, which cannot be determined for future periods because the location and number of union employees that Quanta has employed at any given time and the plans in which they may participate vary depending on projects Quanta has ongoing at any time and the need for union resources in connection with those projects. The collective bargaining agreements expire at various times and have typically been renegotiated and renewed on terms similar to the ones contained in the expiring agreements.

The Employee Retirement Income Security Act of 1974, as amended by the Multi-Employer Pension Plan Amendments Act of 1980, imposes certain liabilities upon employers who are contributors to a multi-employer plan in the event of the employer’s withdrawal from, or upon termination of, such plan. None of Quanta’s operating units have any current plans to withdraw from these plans. In addition, the Pension Protection Act of 2006 added new funding rules generally applicable to plan years beginning after 2007 for multi-employer plans that are classified as “endangered,” “seriously endangered,” or “critical” status. For a plan in critical status, additional required contributions and benefit reductions may apply. Quanta has been notified that two plans to which a Quanta operating unit contributes are in “critical” status. One of the plans requires additional contributions in the form of a surcharge on future benefit contributions required for future work performed by union employees covered by this plan. The amount of additional funds that Quanta may be obligated to contribute to this plan in the future cannot be estimated, as such amounts will be based on future levels of work that require the specific use of those union employees covered by this plan. No additional contributions are required for the other plan.

Indemnities

Quanta has indemnified various parties against specified liabilities that those parties might incur in the future in connection with Quanta’s previous acquisitions of certain companies. The indemnities under acquisition agreements usually are contingent upon the other party incurring liabilities that reach specified thresholds. Quanta also generally indemnifies its customers for the services it provides under its contracts, as well as other specified liabilities, which may subject Quanta to indemnity claims and liabilities and related litigation. As of September 30, 2010, Quanta does not believe any material liabilities for asserted claims against it in connection with any of these indemnity obligations are probable.

11.   SEGMENT INFORMATION:

Quanta presents its operations under four reportable segments: (1) Electric Power Infrastructure Services, (2) Natural Gas and Pipeline Infrastructure Services, (3) Telecommunications Infrastructure Services and (4) Fiber Optic Licensing. This structure is generally focused on broad end-user markets for Quanta’s services.

The Electric Power Infrastructure Services segment provides comprehensive network solutions to customers in the electric power industry. Services performed by the Electric Power Infrastructure Services segment generally include the design, installation, upgrade, repair and maintenance of electric power transmission and distribution networks and substation facilities along with other engineering and technical services. This segment also provides emergency restoration services, including repairing infrastructure damaged by inclement weather, the energized installation, maintenance and upgrade of electric power infrastructure utilizing unique bare hand and hot stick methods and our proprietary robotic arm technologies, and the installation of “smart grid” technologies on electric power networks. In addition, this segment designs, installs and maintains wind turbine facilities and solar arrays and related switchyards and transmission networks for renewable power generation sources. To a lesser extent, this segment provides services such as the design, installation, maintenance and repair of commercial and industrial wiring, installation of traffic networks and the installation of cable and control systems for light rail lines.

The Natural Gas and Pipeline Infrastructure Services segment provides comprehensive network solutions to customers involved in the transportation of natural gas, oil and other pipeline products. Services performed by the Natural Gas and Pipeline Infrastructure Services segment generally include the design, installation, repair and

25

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

maintenance of natural gas and oil transmission and distribution systems, compressor and pump stations and gas gathering systems, as well as related trenching, directional boring and automatic welding services. In addition, this segment’s services include pipeline protection, pipeline integrity and rehabilitation and fabrication of pipeline support systems and related structures and facilities. This segment also provides emergency restoration services, including repairing natural gas and oil pipeline infrastructure damaged by inclement weather. To a lesser extent, this segment designs, installs and maintains airport fueling systems as well as water and sewer infrastructure.

The Telecommunications Infrastructure Services segment provides comprehensive network solutions to customers in the telecommunications and cable television industries. Services performed by the Telecommunications Infrastructure Services segment generally include the design, installation, repair and maintenance of fiber optic, copper and coaxial cable networks used for video, data and voice transmission, as well as the design and installation of wireless communications towers and switching systems. This segment also provides emergency restoration services, including repairing telecommunications infrastructure damaged by inclement weather. To a lesser extent, services provided under this segment include cable locating, splicing and testing of fiber optic networks and residential installation of fiber optic cabling.

The Fiber Optic Licensing segment designs, procures, constructs and maintains fiber optic telecommunications infrastructure in select markets and licenses the right to use these point-to-point fiber optic telecommunications facilities to its customers pursuant to licensing agreements, typically with lease terms from five to twenty-five years, inclusive of certain renewal options. Under those agreements, customers are provided the right to use a portion of the capacity of a fiber optic facility, with the facility owned and maintained by Quanta. The Fiber Optic Licensing segment provides services to enterprise, education, carrier, financial services and healthcare customers and other entities with high bandwidth telecommunication needs. The telecommunication services provided through this segment are subject to regulation by the Federal Communications Commission and certain state public utility commissions.

Quanta’s segment results are derived from the types of services provided across its operating units in each of the end user markets described above. Quanta’s entrepreneurial business model allows each of its operating units to serve the same or similar customers and to provide a range of services across end user markets. Quanta’s operating units are organized into one of three internal divisions, namely, the electric power division, natural gas and pipeline division and telecommunications division. These internal divisions are closely aligned with the reportable segments described above based on their operating units’ predominant type of work, with the operating units providing predominantly telecommunications and fiber optic licensing services being managed within the same internal division.

Reportable segment information, including revenues and operating income by type of work, is gathered from each operating unit for the purpose of evaluating segment performance in support of Quanta’s market strategies. These classifications of Quanta’s operating unit revenues by type of work for segment reporting purposes can at times require judgment on the part of management. Quanta’s operating units may perform joint infrastructure service projects for customers in multiple industries, deliver multiple types of network services under a single customer contract or provide service across industries, for example, joint trenching projects to install distribution lines for electric power, natural gas and telecommunications customers or the installation of broadband communication over electric power lines.

In addition, Quanta’s integrated operations and common administrative support at each of its operating units requires that certain allocations, including allocations of shared and indirect costs, such as facility costs, indirect operating expenses including depreciation, and general and administrative costs, are made to determine operating segment profitability. Corporate costs, such as payroll and benefits, employee travel expenses, facility costs, professional fees, acquisition costs and amortization related to certain intangible assets are not allocated.

26

QUANTA SERVICES, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

Summarized financial information for Quanta’s reportable segments is presented in the following tables (in thousands):

	Three Months Ended
	September 30						Nine Months Ended September 30
	2010			2009			2010			2009
Revenues from external customers:
Electric Power	$	532,603		$	512,797		$	1,452,774		$	1,551,496
Natural Gas and Pipeline		551,674			131,628			1,003,728			433,138
Telecommunications		93,618			113,998			289,506			284,024
Fiber Optic Licensing		28,112			22,371			78,784			64,045
Consolidated	$	1,206,007		$	780,794		$	2,824,792		$	2,332,703
Operating income (loss):
Electric Power	$	60,361		$	66,778		$	150,567		$	178,768
Natural Gas and Pipeline		53,118			2,097			97,388			8,157
Telecommunications		5,605			12,317			12,499			18,684
Fiber Optic Licensing		13,266			11,757			39,265			32,023
Corporate and non-allocated costs		(37,789	)		(21,787	)		(98,043	)		(67,942	)
Consolidated	$	94,561		$	71,162		$	201,676		$	169,690
Depreciation:
Electric Power	$	10,091		$	10,068		$	30,060		$	30,157
Natural Gas and Pipeline		10,494			5,530			32,992			16,521
Telecommunications		1,671			1,678			5,135			4,864
Fiber Optic Licensing		3,246			2,489			9,415			6,676
Corporate and non-allocated costs		1,000			809			2,775			2,319
Consolidated	$	26,502		$	20,574		$	80,377		$	60,537

Separate measures of Quanta’s assets and cash flows, including capital expenditures, by reportable segment are not produced or utilized by management to evaluate segment performance. Quanta’s fixed assets include operating machinery, equipment and vehicles that are used on an interchangeable basis across its reportable segments, as well as office equipment, buildings and leasehold improvements that are shared across segment operations. As a result, depreciation is allocated to Quanta’s reportable segments based upon each operating unit’s revenue contribution to each reportable segment.

Foreign Operations

Quanta does not have significant operations or long-lived assets in countries outside of the United States. Quanta derived $75.2 million and $27.2 million of its revenues from foreign operations, the majority of which was earned in Canada, during the three months ended September 30, 2010 and 2009. Quanta derived $173.4 million and $61.6 million of its revenues from foreign operations, the majority of which was earned in Canada, during the nine months ended September 30, 2010 and 2009. In addition, Quanta held property and equipment of $64.7 million and $57.1 million in foreign countries as of September 30, 2010 and December 31, 2009.

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Item 2.   Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our condensed consolidated financial statements and related notes included elsewhere in this Quarterly Report on Form 10-Q and with our Annual Report on Form 10-K for the year ended December 31, 2009, which was filed with the Securities and Exchange Commission (SEC) on March 1, 2010 and is available on the SEC’s website at www.sec.gov and on our website, which is www.quantaservices.com. The discussion below contains forward-looking statements that are based upon our current expectations and are subject to uncertainty and changes in circumstances. Actual results may differ materially from these expectations due to inaccurate assumptions and known or unknown risks and uncertainties, including those identified under the headings “Uncertainty of Forward-Looking Statements and Information” below in this Item 2 and “Risk Factors” in Item 1A of Part II of this Quarterly Report.

Introduction

We are a leading national provider of specialty contracting services, offering infrastructure solutions to the electric power, natural gas, oil and telecommunications industries. The services we provide include the design, installation, upgrade, repair and maintenance of infrastructure within each of the industries we serve, such as electric power transmission and distribution networks and substation facilities, natural gas and oil transmission and distribution systems, and fiber optic, copper and coaxial cable networks used for video, data and voice transmission. We also design, procure, construct and maintain fiber optic telecommunications infrastructure in select markets and license the right to use these point-to-point fiber optic telecommunications facilities to customers.

We report our results under four reportable segments: (1) Electric Power Infrastructure Services, (2) Natural Gas and Pipeline Infrastructure Services, (3) Telecommunications Infrastructure Services and (4) Fiber Optic Licensing. These reportable segments are based on the types of services we provide. Our consolidated revenues for the nine months ended September 30, 2010 were approximately $2.82 billion, of which 51.4% was attributable to the Electric Power Infrastructure Services segment, 35.5% to the Natural Gas and Pipeline Infrastructure Services segment, 10.3% to the Telecommunications Infrastructure Services segment and 2.8% to the Fiber Optic Licensing segment.

Our customers include many of the leading companies in the industries we serve. We have developed strong strategic alliances with numerous customers and strive to develop and maintain our status as a preferred vendor to our customers. We enter into various types of contracts, including competitive unit price, hourly rate, cost-plus (or time and materials basis), and fixed price (or lump sum basis), the final terms and prices of which we frequently negotiate with the customer. Although the terms of our contracts vary considerably, most are made on either a unit price or fixed price basis in which we agree to do the work for a price per unit of work performed (unit price) or for a fixed amount for the entire project (fixed price). We complete a substantial majority of our fixed price projects within one year, while we frequently provide maintenance and repair work under open-ended unit price or cost-plus master service agreements that are renewable periodically.

We recognize revenue on our unit price and cost-plus contracts when units are completed or services are performed. For our fixed price contracts, we record revenues as work on the contract progresses on a percentage-of-completion basis. Under this method, revenue is recognized based on the percentage of total costs incurred to date in proportion to total estimated costs to complete the contract. Fixed price contracts generally include retainage provisions under which a percentage of the contract price is withheld until the project is complete and has been accepted by our customer.

For internal management purposes, we are organized into three internal divisions, namely, the electric power division, the natural gas and pipeline division and the telecommunications division. These internal divisions are closely aligned with the reportable segments described above based on the predominant type of work provided by the operating units within a division. The operating units providing predominantly telecommunications and fiber optic licensing services are managed within the same internal division.

Reportable segment information, including revenues and operating income by type of work, is gathered from each operating unit for the purpose of evaluating segment performance in support of our market strategies. These

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classifications of our operating unit revenues by type of work for segment reporting purposes can at times require judgment on the part of management. Our operating units may perform joint infrastructure service projects for customers in multiple industries, deliver multiple types of network services under a single customer contract or provide services across industries, for example, joint trenching projects to install distribution lines for electric power, natural gas and telecommunication customers or the installation of broadband communication over electric power lines. Our integrated operations and common administrative support at each of our operating units require that certain allocations, including allocations of shared and indirect costs, such as facility costs, indirect operating expenses including depreciation and general and administrative costs, are made to determine operating segment profitability. Corporate costs, such as payroll and benefits, employee travel expenses, facility costs, professional fees, acquisition costs and amortization related to certain intangible costs are not allocated.

The Electric Power Infrastructure Services segment provides comprehensive network solutions to customers in the electric power industry. Services performed by the Electric Power Infrastructure Services segment generally include the design, installation, upgrade, repair and maintenance of electric power transmission and distribution networks and substation facilities along with other engineering and technical services. This segment also provides emergency restoration services, including repairing infrastructure damaged by inclement weather, the energized installation, maintenance and upgrade of electric power infrastructure utilizing unique bare hand and hot stick methods and our proprietary robotic arm technologies, and the installation of “smart grid” technologies on electric power networks. In addition, this segment designs, installs and maintains wind turbine facilities and solar arrays and related switchyards and transmission networks for renewable power generation sources. To a lesser extent, this segment provides services such as the design, installation, maintenance and repair of commercial and industrial wiring, installation of traffic networks and the installation of cable and control systems for light rail lines.

The Natural Gas and Pipeline Infrastructure Services segment provides comprehensive network solutions to customers involved in the transportation of natural gas, oil and other pipeline products. Services performed by the Natural Gas and Pipeline Infrastructure Services segment generally include the design, installation, repair and maintenance of natural gas and oil transmission and distribution systems, compressor and pump stations and gas gathering systems, as well as related trenching, directional boring and automatic welding services. In addition, this segment’s services include pipeline protection, pipeline integrity and rehabilitation and fabrication of pipeline support systems and related structures and facilities. This segment also provides emergency restoration services, including repairing natural gas and oil pipeline infrastructure damaged by inclement weather. To a lesser extent, this segment designs, installs and maintains airport fueling systems as well as water and sewer infrastructure.

The Telecommunications Infrastructure Services segment provides comprehensive network solutions to customers in the telecommunications and cable television industries. Services performed by the Telecommunications Infrastructure Services segment generally include the design, installation, repair and maintenance of fiber optic, copper and coaxial cable networks used for video, data and voice transmission, as well as the design and installation of wireless communications towers and switching systems. This segment also provides emergency restoration services, including repairing telecommunications infrastructure damaged by inclement weather. To a lesser extent, services provided under this segment include cable locating, splicing and testing of fiber optic networks and residential installation of fiber optic cabling.

The Fiber Optic Licensing segment designs, procures, constructs and maintains fiber optic telecommunications infrastructure in select markets and licenses the right to use these point-to-point fiber optic telecommunications facilities to its customers pursuant to licensing agreements, typically with lease terms from five to twenty-five years, inclusive of certain renewal options. Under those agreements, customers are provided the right to use a portion of the capacity of a fiber optic facility, with the facility owned and maintained by us. The Fiber Optic Licensing segment provides services to enterprise, education, carrier, financial services and healthcare customers and other entities with high bandwidth telecommunication needs. The telecommunication services provided through this segment are subject to regulation by the Federal Communications Commission and certain state public utility commissions.

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Price Gregory Acquisition

On October 1, 2009, we acquired Price Gregory Services, Incorporated (Price Gregory), which provides natural gas and oil transmission pipeline infrastructure services in North America. In connection with this acquisition, we issued approximately 10.9 million shares of our common stock valued at approximately $231.8 million and paid approximately $95.8 million in cash to the stockholders of Price Gregory. The results of Price Gregory have been included in our consolidated financial statements beginning on October 1, 2009. The acquisition significantly expanded our natural gas and pipeline operations. In conjunction with this acquisition, we added the natural gas and pipeline division for internal management purposes. Because of the type of work performed by Price Gregory, its financial results are generally included in the Natural Gas and Pipeline Infrastructure Services segment.

Backlog

Backlog represents the amount of revenue that we expect to realize from work to be performed in the future on uncompleted contracts, including new contractual agreements on which work has not begun. The backlog estimates include amounts under long-term maintenance contracts in addition to construction contracts. We determine the amount of backlog for work under long-term maintenance contracts, or master service agreements (MSAs), by using recurring historical trends inherent in the current MSAs, factoring in seasonal demand and projected customer needs based upon ongoing communications with the customer. We also include in backlog our share of work to be performed under contracts signed by joint ventures in which we have an ownership interest. The following tables present our total backlog by reportable segment as of September 30, 2010 and December 31, 2009, along with an estimate of the backlog amounts expected to be realized within 12 months of each balance sheet date (in thousands):

	Backlog as of				Backlog as of
	September 30, 2010				December 31, 2009
	12 Month		Total		12 Month		Total
Electric Power Infrastructure Services	$	1,562,553	$	4,163,150	$	1,312,141	$	3,855,320
Natural Gas and Pipeline Infrastructure Services		627,697		841,433		847,702		1,120,795
Telecommunications Infrastructure Services		189,329		315,090		222,999		285,295
Fiber Optic Licensing		95,815		403,957		87,786		387,373
Total	$	2,475,394	$	5,723,630	$	2,470,628	$	5,648,783

As discussed above, our backlog estimates include amounts under MSAs. In many instances, our customers are not contractually committed to specific volumes of services under our MSAs, and many of our contracts may be terminated with notice. There can be no assurance as to our customers’ requirements or that our estimates are accurate. In addition, many of our MSAs, as well as contracts for fiber optic licensing, are subject to renewal options. For purposes of calculating backlog, we have included future renewal options only to the extent the renewals can reasonably be expected to occur. Contracts included in backlog can be subject to delays as a result of commercial issues, regulatory requirements and other factors which could cause revenue amounts to be realized in periods later than originally expected.

Seasonality; Fluctuations of Results; Economic Conditions

Our revenues and results of operations can be subject to seasonal and other variations. These variations are influenced by weather, customer spending patterns, bidding seasons, project schedules and timing and holidays. Typically, our revenues are lowest in the first quarter of the year because cold, snowy or wet conditions cause delays. The second quarter is typically better than the first, as some projects begin, but continued cold and wet weather can often impact second quarter productivity. The third quarter is typically the best of the year, as a greater number of projects are underway and weather is normally more accommodating to work on projects. Generally, revenues during the fourth quarter of the year are lower than the third quarter but higher than the second quarter. Many projects are completed in the fourth quarter, and revenues are often impacted positively by customers seeking to spend their capital budget before the end of the year; however, the holiday season and inclement weather sometimes can cause delays and thereby reduce revenues and increase costs. Any quarter may be positively or negatively

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affected by atypical weather patterns such as excessive rainfall in a given part of the country or warmer winter weather, making it difficult to predict these variations quarter-to-quarter and their effect on particular projects.

Additionally, our industry can be highly cyclical. As a result, our volume of business may be adversely affected by declines or delays in new projects in various geographic regions in the United States. Project schedules, in particular in connection with larger, longer-term projects, can also create fluctuations in the services provided, which may adversely affect us in a given period. The financial condition of our customers and their access to capital, variations in the margins of projects performed during any particular period, regional, national and global economic and market conditions, timing of acquisitions, the timing and magnitude of acquisition and integration costs associated with acquisitions and interest rate fluctuations may also materially affect quarterly results. Accordingly, our operating results in any particular period may not be indicative of the results that can be expected for any other period. You should read “Outlook” and “Understanding Margins” for additional discussion of trends and challenges that may affect our financial condition, results of operations and cash flows.

We and our customers are operating in a challenging business environment in light of the slow economy, weak capital markets and increasing regulatory requirements. We are closely monitoring our customers and the effect that changes in economic, market and regulatory conditions have had or may have on them. We have experienced reduced spending by our customers since late 2008, and we anticipate that the challenges they face will continue to affect demand for our services in the near-term until conditions improve. However, we believe that most of our customers, many of whom are regulated utilities, remain financially stable in general and will be able to continue with their business plans in the long-term. You should read “Outlook” and “Understanding Margins” for additional discussion of trends and challenges that may affect our financial condition, results of operations and cash flows.

Understanding Margins

Our gross margin is gross profit expressed as a percentage of revenues, and our operating margin is operating income expressed as a percentage of revenues. Cost of services, which is subtracted from revenues to obtain gross profit, consists primarily of salaries, wages and benefits to employees, depreciation, fuel and other equipment expenses, equipment rentals, subcontracted services, insurance, facilities expenses, materials and parts and supplies. Selling, general and administrative expenses and amortization of intangible assets are then subtracted from gross profit to obtain operating income. Various factors — some controllable, some not — impact our margins on a quarterly or annual basis.

Seasonal and Geographical.  As discussed above, seasonal patterns can have a significant impact on margins. Generally, business is slower in the winter months versus the warmer months of the year. This can be offset somewhat by increased demand for electrical service and repair work resulting from severe weather. In addition, the mix of business conducted in different parts of the country will affect margins, as some parts of the country offer the opportunity for higher margins than others due to the geographic characteristics associated with the physical location where the work is being performed. Such characteristics include whether the project is performed in an urban versus a rural setting or in a mountainous area or in open terrain. Site conditions, including unforeseen underground conditions, can also impact margins.

Weather.  Adverse or favorable weather conditions can impact margins in a given period. For example, it is typical that parts of the country may experience snow or rainfall that may negatively impact our revenues and margins due to reduced productivity. In many cases, projects may be delayed or temporarily placed on hold. Conversely, in periods when weather remains dry and temperatures are accommodating, more work can be done, sometimes with less cost, which would have a favorable impact on margins. In some cases, severe weather, such as hurricanes and ice storms, can provide us with higher margin emergency restoration service work, which generally has a positive impact on margins.

Revenue Mix.  The mix of revenues derived from the industries we serve will impact margins, as certain industries provide higher margin opportunities. Additionally, changes in our customers’ spending patterns in each of the industries we serve can cause an imbalance in supply and demand and, therefore, affect margins and mix of revenues by industry served.

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Service and Maintenance versus Installation.  Installation work is often obtained on a fixed price basis, while maintenance work is often performed under pre-established or negotiated prices or cost-plus pricing arrangements. Margins for installation work may vary from project to project, and can be higher than maintenance work, because work obtained on a fixed price basis has higher risk than other types of pricing arrangements. We typically derive approximately 30% of our annual revenues from maintenance work, but a higher portion of installation work in any given period may affect our margins for that period.

Subcontract Work.  Work that is subcontracted to other service providers generally yields lower margins. An increase in subcontract work in a given period may contribute to a decrease in margins. We typically subcontract approximately 10% to 15% of our work to other service providers.

Materials versus Labor.  Typically, our customers are responsible for supplying their own materials on projects; however, for some of our contracts, we may agree to procure all or part of the required materials. Margins may be lower on projects where we furnish a significant amount of materials, as our mark-up on materials is generally lower than on our labor costs. In a given period, an increase in the percentage of work with higher materials procurement requirements may decrease our overall margins.

Depreciation.  We include depreciation in cost of services. This is common practice in our industry, but it can make comparability to other companies difficult. This must be taken into consideration when comparing us to other companies.

Insurance.  Margins could be impacted by fluctuations in insurance accruals as additional claims arise and as circumstances and conditions of existing claims change. We are insured for employer’s liability, general liability, auto liability and workers’ compensation claims. As of August 1, 2010, all policies were renewed with deductibles continuing at existing levels of $5.0 million per occurrence other than employer’s liability, which continues to be subject to a deductible of $1.0 million. We also have employee healthcare benefit plans for most employees not subject to collective bargaining agreements, of which the primary plan is subject to a deductible of $350,000 per claimant per year. For the policy year ended July 31, 2009, employer’s liability claims were subject to a deductible of $1.0 million per occurrence, general liability and auto liability claims were subject to a deductible of $3.0 million per occurrence, and workers’ compensation claims were subject to a deductible of $2.0 million per occurrence. Additionally, through July 31, 2009, our workers’ compensation claims were subject to an annual cumulative aggregate liability of up to $1.0 million on claims in excess of $2.0 million per occurrence.

Performance Risk.  Margins may fluctuate because of the volume of work and the impacts of pricing and job productivity, which can be impacted both favorably and negatively by weather, geography, customer decisions and crew productivity. For example, when comparing a service contract between a current quarter and the comparable prior year’s quarter, factors affecting the gross margins associated with the revenues generated by the contract may include pricing under the contract, the volume of work performed under the contract, the mix of the type of work specifically being performed and the productivity of the crews performing the work. Productivity of a crew can be influenced by many factors, including where the work is performed (e.g., rural versus urban area or mountainous or rocky area versus open terrain), whether the work is on an open or encumbered right of way, or the impacts of inclement weather. These types of factors are not practicable to quantify through accounting data, but each may have a direct impact on the gross margin of a specific project.

Selling, General and Administrative Expenses

Selling, general and administrative expenses consist primarily of compensation and related benefits to management, administrative salaries and benefits, marketing, office rent and utilities, communications, professional fees, bad debt expense, acquisition costs, gains and losses on the sale of property and equipment, letter of credit fees and maintenance, training and conversion costs related to the implementation of information technology solutions.

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Results of Operations

The following table sets forth selected statements of operations data and such data as a percentage of revenues for the three and nine month periods indicated (dollars in thousands):

Consolidated Results

	Three Months Ended September 30,										Nine Months Ended September 30,
	2010					2009					2010					2009
Revenues	$	1,206,007		100.0	%	$	780,794		100.0	%	$	2,824,792		100.0	%	$	2,332,703		100.0	%
Cost of services (including depreciation)		1,016,013		84.2			633,166		81.1			2,349,619		83.2			1,930,162		82.7
Gross profit		189,994		15.8			147,628		18.9			475,173		16.8			402,541		17.3
Selling, general and administrative expenses		82,037		6.8			71,018		9.1			245,163		8.7			217,591		9.3
Amortization of intangible assets		13,396		1.2			5,448		0.7			28,334		1.0			15,260		0.7
Operating income		94,561		7.8			71,162		9.1			201,676		7.1			169,690		7.3
Interest expense		(269	)	0.0			(2,816	)	(0.4	)		(4,660	)	(0.1	)		(8,437	)	(0.4	)
Interest income		418		0.0			338		0.1			1,166		0.1			2,047		0.1
Loss on early extinguishment of debt		0		0.0			0		0.0			(7,107	)	(0.3	)		0		0.0
Other income (expense), net		479		0.1			592		0.1			371		0.0			826		0.0
Income before income taxes		95,189		7.9			69,276		8.9			191,446		6.8			164,126		7.0
Provision for income taxes		31,489		2.6			5,320		0.7			70,323		2.5			45,036		1.9
Net income		63,700		5.3			63,956		8.2			121,123		4.3			119,090		5.1
Less: Net income attributable to noncontrolling interest		920		0.1			520		0.1			1,613		0.1			873		0.0
Net income attributable to common stock	$	62,780		5.2	%	$	63,436		8.1	%	$	119,510		4.2	%	$	118,217		5.1	%

Three months ended September 30, 2010 compared to the three months ended September 30, 2009

Revenues.  Revenues increased $425.2 million, or 54.5%, to $1.2 billion for the three months ended September 30, 2010. Natural gas and pipeline infrastructure services revenues increased $420.0 million, or 319.1%, to $551.7 million, electric power infrastructure services revenues increased $19.8 million, or 3.9%, to $532.6 million and fiber optic licensing revenues increased $5.7 million, or 25.7%, to $28.1 million. Revenues from natural gas and pipeline infrastructure services increased primarily as a result of revenue contributions from Price Gregory, which was acquired on October 1, 2009. These increases were partially offset by lower revenues from telecommunications infrastructure services, which decreased $20.4 million, or 17.9%, to $93.6 million, primarily due to a decrease in spending by our customers on their FTTx build-out initiatives.

Gross profit.  Gross profit increased $42.4 million, or 28.7%, to $190.0 million for the three months ended September 30, 2010. The increase in gross profit was predominantly due to the contribution of revenues from natural gas and pipeline infrastructure services in the third quarter of 2010 primarily resulting from the acquisition of Price Gregory in the fourth quarter of 2009. As a percentage of revenues, gross margin decreased to 15.8% for the three months ended September 30, 2010 from 18.9% for the three months ended September 30, 2009. The decrease in gross margin was primarily due to decreases in gross margin in both electric power and telecommunications infrastructure services. Partially offsetting these decreases was an increase in gross margins in natural gas and pipeline infrastructure services. Although our natural gas and pipeline infrastructure services margins were higher in the third quarter of 2010 than the third quarter of 2009, these margins were still lower than our overall gross margins and as a result, our overall gross margins were negatively impacted by these services making up a higher proportion of total revenues in the current period.

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Selling, general and administrative expenses.  Selling, general and administrative expenses increased $11.0 million, or 15.5%, to $82.0 million for the three months ended September 30, 2010. Selling, general and administrative expenses increased approximately $7.1 million as a result of the addition of administrative expenses associated with Price Gregory, which was acquired in the fourth quarter of 2009. Administrative expenses also increased as a result of $2.1 million in higher salaries and benefits costs from increased personnel, an increase of approximately $2.1 million in professional fees and other costs primarily related to ongoing legal matters and an increase of $2.3 million in loss on sale of equipment. These increases were partially offset by a decrease in incentive compensation expenses of approximately $2.9 million associated with current levels of operating activity. Selling, general and administrative expenses as a percentage of revenues decreased from 9.1% for the third quarter of 2009 to 6.8% for the third quarter of 2010 primarily due to the increase in revenues described above.

Amortization of intangible assets.  Amortization of intangible assets increased $7.9 million to $13.4 million for the three months ended September 30, 2010. This increase was primarily due to increased amortization of backlog resulting from the acquisition of Price Gregory on October 1, 2009. Intangibles associated with backlog are amortized over the period of estimated economic consumption and therefore amortization was higher in the third quarter of 2010 as work ramped up on certain contracts acquired as part of the Price Gregory acquisition.

Interest expense.  Interest expense for the three months ended September 30, 2010 decreased $2.5 million as compared to the three months ended September 30, 2009, primarily due to the redemption of our 3.75% convertible subordinated notes due 2026 (3.75% Notes) on May 14, 2010.

Interest income.  Interest income was $0.4 million for the quarter ended September 30, 2010, compared to $0.3 million for the quarter ended September 30, 2009. The increase results primarily from higher interest rates, partially offset by a lower average cash balance for the quarter ended September 30, 2010 as compared to the quarter ended September 30, 2009.

Provision for income taxes.  The provision for income taxes was $31.5 million for the three months ended September 30, 2010, with an effective tax rate of 33.1% as compared to $5.3 million for the three months ended September 30, 2009 at an effective tax rate of 7.7%. We recorded tax benefits of $9.4 million and $22.4 million for the three months ended September 30, 2010 and 2009 due to decreases in reserves for uncertain tax benefits resulting from the expiration of various federal and state statutes of limitations.

Nine months ended September 30, 2010 compared to the nine months ended September 30, 2009

Revenues.  Revenues increased $492.1 million, or 21.1%, to $2.8 billion for the nine months ended September 30, 2010. Natural gas and pipeline infrastructure services revenues increased $570.6 million, or 131.7%, to $1.0 billion, telecommunication infrastructure services revenues increased $5.5 million, or 1.9%, to $289.5 million and fiber optic licensing revenues increased $14.7 million, or 23.0%, to $78.8 million. Revenues from natural gas and pipeline infrastructure services increased primarily as a result of revenue contributions from Price Gregory, which was acquired on October 1, 2009. These increases were partially offset by lower revenues from electric power infrastructure services, which decreased $98.7 million, or 6.4%, to $1.5 billion, primarily due to decreases in spending by our customers and the timing of major transmission projects.

Gross profit.  Gross profit increased $72.6 million, or 18.0%, to $475.2 million for the nine months ended September 30, 2010. The increase in gross profit was predominantly due to the contribution of gas transmission services revenues in the first nine months of 2010, primarily as a result of the acquisition of Price Gregory. As a percentage of revenues, gross margin decreased to 16.8% for the nine months ended September 30, 2010 from 17.3% for the nine months ended September 30, 2009. The decrease in gross margin was primarily due to decreases in gross margin in both electric power and telecommunications infrastructure services. Partially offsetting these decreases was an increase in gross margins in natural gas and pipeline infrastructure services. Although our natural gas and pipeline infrastructure services margins were higher in the nine months ended September 30, 2010 than the nine months ended September 30, 2009, these margins were still lower than our overall gross margins and as a result, our overall gross margins were negatively impacted by these services making up a higher proportion of total revenues in the current period.

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Selling, general and administrative expenses.  Selling, general and administrative expenses increased $27.6 million, or 12.7%, to $245.2 million for the nine months ended September 30, 2010. Selling, general and administrative expenses increased approximately $20.9 million as a result of the addition of administrative expenses associated with Price Gregory, which was acquired in the fourth quarter of 2009. The remaining increase primarily results from an increase of $3.9 million in salaries and benefits costs resulting from increased personnel and incentive compensation expenses associated with current levels of operating activity, an increase of $2.8 million in professional fees and costs primarily associated with ongoing legal matters and acquisition activities and an increase of $1.2 million associated with the ongoing implementation of information technology solutions. These increases are partially offset by a decrease in bad debt expense of $2.9 million in the first nine months of 2010 as compared to the same period of 2009. Selling, general and administrative expenses as a percentage of revenues decreased from 9.3% for the first nine months of 2009 to 8.7% for the first nine months of 2010 primarily due to the increase in revenues described above.

Amortization of intangible assets.  Amortization of intangible assets increased $13.1 million to $28.3 million for the nine months ended September 30, 2010. This increase is primarily due to increased amortization of intangibles resulting from the acquisition of Price Gregory on October 1, 2009, partially offset by reduced amortization expense from previously acquired intangible assets as balances became fully amortized.

Interest expense.  Interest expense for the nine months ended September 30, 2010 decreased $3.8 million as compared to the nine months ended September 30, 2009, primarily due to the redemption of our 3.75% Notes on May 14, 2010 as described above.

Interest income.  Interest income was $1.2 million for the nine months ended September 30, 2010, compared to $2.0 million for the nine months ended September 30, 2009. The decrease results primarily from substantially lower interest rates, partially offset by a higher average cash balance for the nine months ended September 30, 2010 as compared to the nine months ended September 30, 2009.

Loss on early extinguishment of debt.  Loss on early extinguishment of debt was $7.1 million for the nine months ended September 30, 2010. The loss on early extinguishment of debt is a result of the redemption of all of the outstanding 3.75% Notes on May 14, 2010. This loss includes a non-cash loss of $3.5 million related to the difference between the net carrying value and the estimated fair value of the 3.75% Notes calculated as of the date of redemption, the payment of $2.3 million representing the 1.607% redemption premium above par value and a non-cash loss of $1.3 million from the write-off of the remaining unamortized deferred financing costs related to the 3.75% Notes.

Provision for income taxes.  The provision for income taxes was $70.3 million for the nine months ended September 30, 2010, with an effective tax rate of 36.7% as compared to $45.0 million for the nine months ended September 30, 2009 with an effective tax rate of 27.4%. The low effective tax rates for 2010 and 2009 result from $9.4 million and $22.4 million of tax benefits recorded in the third quarter of 2010 and 2009 associated with the reversal of tax contingencies.

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Segment Results

	Three Months Ended September 30,										Nine Months Ended September 30,
	2010					2009					2010					2009
	(dollars in thousands)
Revenues from external customers:
Electric Power	$	532,603		44.2	%	$	512,797		65.7	%	$	1,452,774		51.4	%	$	1,551,496		66.5	%
Natural Gas and Pipeline		551,674		45.7			131,628		16.9			1,003,728		35.5			433,138		18.6
Telecommunications		93,618		7.8			113,998		14.6			289,506		10.3			284,024		12.2
Fiber Optic Licensing		28,112		2.3			22,371		2.8			78,784		2.8			64,045		2.7
Consolidated revenues from external customers	$	1,206,007		100.0	%	$	780,794		100.0	%	$	2,824,792		100.0	%	$	2,332,703		100.0	%
Operating income (loss):
Electric Power	$	60,361		11.3	%	$	66,778		13.0	%	$	150,567		10.4	%	$	178,768		11.5	%
Natural Gas and Pipeline		53,118		9.6			2,097		1.6			97,388		9.7			8,157		1.9
Telecommunications		5,605		6.0			12,317		10.8			12,499		4.3			18,684		6.6
Fiber Optic Licensing		13,266		47.2			11,757		52.6			39,265		49.8			32,023		50.0
Corporate and non-allocated costs		(37,789	)	N/A			(21,787	)	N/A			(98,043	)	N/A			(67,942	)	N/A
Consolidated operating income	$	94,561		7.8	%	$	71,162		9.1	%	$	201,676		7.1	%	$	169,690		7.3	%

Three months ended September 30, 2010 compared to the three months ended September 30, 2009

Electric Power Infrastructure Services Segment Results

Revenues for this segment increased $19.8 million, or 3.9%, to $532.6 million for the quarter ended September 30, 2010. Revenues were positively impacted by increases in revenue from electric power distribution services due to increased customer spending, partially offset by lower electric power transmission services revenues primarily due to the timing of major transmission projects.

Operating income decreased $6.4 million, or 9.6%, to $60.4 million for the quarter ended September 30, 2010, as compared to operating income of $66.8 million for the third quarter of 2009. Operating income as a percentage of revenues decreased to 11.3% for the quarter ended September 30, 2010, from 13.0% for the quarter ended September 30, 2009. These decreases are primarily due to continued pricing pressures on our distribution projects and certain higher margin transmission projects that were completed in last year’s third quarter but were not replaced with comparable margin projects this year, primarily as a result of the timing of major projects.

Natural Gas and Pipeline Infrastructure Services Segment Results

Revenues for this segment increased $420.0 million, or 319.1%, to $551.7 million for the quarter ended September 30, 2010. This increase in revenues is primarily due to the contribution of natural gas transmission services revenues in the third quarter of 2010 from the operations of Price Gregory, which was acquired on October 1, 2009.

Operating income increased $51.0 million to $53.1 million for the quarter ended September 30, 2010, as compared to operating income of $2.1 million for the quarter ended September 30, 2009. Operating income as a percentage of revenues increased to 9.6% for the quarter ended September 30, 2010 from 1.6% for the quarter ended September 30, 2009. These increases are primarily due to the increased revenues discussed above, which include a greater contribution of higher margin gas transmission services.

Telecommunications Infrastructure Services Segment Results

Revenues for this segment decreased $20.4 million, or 17.9%, to $93.6 million for the quarter ended September 30, 2010. This decrease in revenues is primarily due to lower revenues from FTTx build-out initiatives as a result of reduced capital spending by our customers in the third quarter of 2010 as compared to the third quarter of 2009.

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Operating income decreased $6.7 million, or 54.5%, to $5.6 million for the quarter ended September 30, 2010, as compared to operating income of $12.3 million for the third quarter of 2009. Operating income as a percentage of revenues decreased from 10.8% in the quarter ended September 30, 2009 to 6.0% in the quarter ended September 30, 2010. These decreases are primarily due to lower revenues available to cover fixed costs and overall lower margins on work performed in the third quarter of 2010 as compared to the third quarter of 2009.

Fiber Optic Licensing Segment Results

Revenues for this segment increased $5.7 million, or 25.7%, to $28.1 million for the quarter ended September 30, 2010. This increase in revenues is primarily a result of our continued network expansion and the associated revenues from licensing the right to use point-to-point fiber optic telecommunications facilities.

Operating income increased $1.5 million, or 12.8%, to $13.3 million for the quarter ended September 30, 2010 as a result of the increased revenues discussed above. Operating income as a percentage of revenues decreased to 47.2% for the quarter ended September 30, 2010, from 52.6% for the quarter ended September 30, 2009. The decrease in operating income as a percentage of revenues is primarily due to certain contracts in the third quarter of 2010 with higher materials procurement requirements on behalf of customers.

Corporate and Non-allocated Costs

Certain selling, general and administrative expenses and amortization of intangible assets are not allocated to segments. Corporate and non-allocated costs for the quarter ended September 30, 2010 increased $16.0 million, or 73.4%, to $37.8 million primarily due to an increase of $7.9 million in amortization expense of intangible assets associated with acquisitions, $3.0 million of higher salaries and related benefits expenses and $1.4 million in additional professional fees and acquisition costs.

Nine months ended September 30, 2010 compared to the nine months ended September 30, 2009

Electric Power Infrastructure Services Segment Results

Revenues for this segment decreased $98.7 million, or 6.4%, to $1.4 billion for the nine months ended September 30, 2010. Revenues were negatively impacted by decreases in electric power distribution services revenues due to reduced customer spending on maintenance, coupled with a reduction in electric power transmission services related to the timing of major transmission projects. Partially offsetting these decreases was an increase in revenues from emergency restoration services, which increased approximately $15.7 million to $80.1 million in the first nine months of 2010, primarily as a result of increased work associated with ice storms in the Northeast United States during the first quarter of 2010.

Operating income decreased $28.2 million, or 15.8%, to $150.6 million for the nine months ended September 30, 2010, as compared to $178.8 million for the nine months ended September 30, 2009, while operating income as a percentage of revenues decreased to 10.4% for the nine months ended September 30, 2010, from 11.5% for the nine months ended September 30, 2009. These decreases are primarily the result of the reduced revenues described above, which had a negative impact on this segment’s ability to cover fixed costs, as well as the impact of a more competitive pricing environment for smaller dollar transmission projects and for certain distribution projects. In addition, margins were lower on emergency restoration services performed in 2010 as compared to 2009.

Natural Gas and Pipeline Infrastructure Services Segment Results

Revenues for this segment increased $570.6 million, or 131.7%, to $1.0 billion for the nine months ended September 30, 2010. This increase in revenues is primarily due to the contribution of natural gas transmission service revenues in the current period from the operations of Price Gregory, which was acquired on October 1, 2009.

Operating income increased $89.2 million to $97.4 million for the nine months ended September 30, 2010, as compared to operating income of $8.2 million for the nine months ended September 30, 2009. Operating income as a percentage of revenues increased to 9.7% for the nine months ended September 30, 2010 from 1.9% for the nine months ended September 30, 2009. These increases are primarily due to a change in the mix of services in the 2010

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period as compared to the 2009 period as a result of the revenue increase described above, with the 2010 period including a greater volume of higher margin gas transmission services.

Telecommunications Infrastructure Services Segment Results

Revenues for this segment increased $5.5 million, or 1.9%, to $289.5 million for the nine months ended September 30, 2010. This increase in revenues is primarily due to increases in the volume of work associated with long-haul fiber installation during the first nine months of 2010, partially offset by lower revenues from FTTx build-out initiatives as a result of reduced capital spending by our customers in the 2010 period as compared to the 2009 period.

Operating income decreased $6.2 million, or 33.1%, to $12.5 million for the nine months ended September 30, 2010, as compared to operating income of $18.7 million for the nine months ended September 30, 2009. Operating income as a percentage of revenues decreased from 6.6% in the nine months ended September 30, 2009 to 4.3% in the nine months ended September 30, 2010. These decreases are primarily due to the impact of losses incurred during the first quarter of 2010 as a result of weather related slowdowns impacting this segment’s productivity and performance on various ongoing jobs.

Fiber Optic Licensing Segment Results

Revenues for this segment increased $14.7 million, or 23.0%, to $78.8 million for the nine months ended September 30, 2010. This increase in revenues is primarily a result of our continued network expansion and the associated revenues from licensing the right to use point-to-point fiber optic telecommunications facilities.

Operating income increased $7.2 million, or 22.6%, to $39.3 million for the nine months ended September 30, 2010, as compared to operating income of $32.0 million for the nine months ended September 30, 2009, resulting from the increased revenues discussed above. Operating income as a percentage of revenues was 49.8% for the nine months ended September 30, 2010, which is consistent with 50.0% for the nine months ended September 30, 2009.

Corporate and Non-allocated Costs

Certain selling, general and administrative expenses and amortization of intangible assets are not allocated to segments. Corporate and non-allocated costs for the nine months ended September 30, 2010 increased $30.1 million to $98.0 million primarily due to increases of $13.1 million in amortization expense of intangible assets associated with acquisitions, approximately $10.7 million in higher salaries and benefits costs from increased personnel and incentive compensation expenses associated with current levels of operating activity, an increase of $1.4 million associated with increased acquisition activities and an increase of $1.2 million in costs associated with the ongoing implementation of information technology solutions.

Liquidity and Capital Resources

Cash Requirements

We anticipate that our cash and cash equivalents on hand, which totaled $441.2 million as of September 30, 2010, existing borrowing capacity under our credit facility, and our future cash flows from operations will provide sufficient funds to enable us to meet our future operating needs, debt service requirements and planned capital expenditures, as well as facilitate our ability to grow in the foreseeable future. We also evaluate opportunities for strategic acquisitions from time to time that may require cash. In addition, we evaluate opportunities to make investments in customer-sponsored projects where we anticipate performing engineering, procurement, or construction services, and we believe such investments enhance our ability to secure such services. These investment opportunities exist in the markets and industries we serve and may take the form of debt or equity investments, which may require cash.

On May 14, 2010, we redeemed all of the $143.8 million aggregate principal amount outstanding of our 3.75% Notes, at a redemption price of 101.607% of the principal amount of the notes, plus accrued and unpaid interest to the redemption date. We paid the aggregate redemption price of approximately $146.1 million, plus accrued and unpaid interest, using cash on hand.

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On October 25, 2010, we completed the acquisition of Valard Construction LP and certain of its affiliated entities (Valard). Valard provides electric power infrastructure services and is located in Alberta, Canada. In connection with the acquisition, we paid from cash on hand approximately $118.9 million to the shareholders of Valard and repaid approximately $12.5 million in debt owed by Valard on the date of acquisition.

Management continues to monitor the financial markets and general national and global economic conditions. We consider our cash investment policies to be conservative in that we maintain a diverse portfolio of what we believe to be high-quality cash investments with short-term maturities. We were in compliance with our covenants under our credit facility at September 30, 2010. Accordingly, we do not anticipate that the current weakness in the capital markets will have a material impact on the principal amounts of our cash investments or our ability to rely upon our existing credit facility for funds. To date, we have experienced no loss or lack of access to our cash or cash equivalents or funds under our credit facility; however, we can provide no assurances that access to our invested cash and cash equivalents will not be impacted in the future by adverse conditions in the financial markets.

Capital expenditures are expected to be approximately $170 million to $180 million for 2010. Approximately $35 million to $45 million of the expected 2010 capital expenditures are targeted for the expansion of our fiber optic network.

Sources and Uses of Cash

As of September 30, 2010, we had cash and cash equivalents of $441.2 million, working capital of $1.1 billion and a nominal amount of long-term obligations. We also had $191.2 million of letters of credit outstanding under our credit facility, leaving $283.8 million available for revolving loans or issuing new letters of credit.

Operating Activities

Cash flow from operations is primarily influenced by demand for our services, operating margins and the type of services we provide, but can also be influenced by our working capital needs, in particular on larger projects, due to the timing of collection of receivables and the settlement of payables and other obligations. Working capital needs are generally higher during the summer and fall months due to increased demand for our services when favorable weather conditions exist in certain regions of the country. Conversely, working capital assets are typically converted to cash during the winter months.

Net cash used by operating activities was $54.7 million during the three months ended September 30, 2010 as compared to net cash provided by operating activities of $108.0 million during the three months ended September 30, 2009. The decrease in operating cash flows during the third quarter of 2010 as compared to the third quarter of 2009 was primarily due to higher seasonal working capital requirements during 2010 primarily related to the ramp-up of certain natural gas transmission projects.

Net cash used by operating activities was $21.3 million during the nine months ended September 30, 2010 as compared to net cash provided by operating activities of $278.6 million during the nine months ended September 30, 2009. The decrease in operating cash flows during the nine months ended September 30, 2010 as compared to the same period in 2009 was primarily due to the collection in the first quarter of 2009 of significantly higher receivable balances that were outstanding at the end of 2008 partially as a result of the higher level of emergency restoration work performed in the fourth quarter of 2008. Also contributing to the decrease in operating cash flows during the nine months ended September 30, 2010 as compared to the same period in 2009 were increased working capital requirements in the 2010 period associated with an increased number of large natural gas transmission projects during the period.

Investing Activities

In the three months ended September 30, 2010, we used net cash in investing activities of $24.5 million as compared to $48.1 million used in investing activities in the three months ended September 30, 2009. Investing activities in the third quarter of 2010 included $31.7 million used for capital expenditures, partially offset by $7.1 million of proceeds from the sale of equipment. Investing activities in the third quarter of 2009 included

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$36.0 million used for capital expenditures and $14.1 million in net cash outlays for acquisitions, partially offset by $2.1 million of proceeds from the sale of equipment.

In the nine months ended September 30, 2010, we used net cash in investing activities of $92.8 million as compared to $130.2 million used in investing activities in the nine months ended September 30, 2009. Investing activities in the nine months ended September 30, 2010 included $114.0 million used for capital expenditures, partially offset by $21.3 million of proceeds from the sale of equipment. Investing activities in the nine months ended September 30, 2009 included $120.9 million used for capital expenditures and $14.1 million in net cash outlays for acquisitions, partially offset by $4.8 million of proceeds from the sale of equipment.

Financing Activities

In the three months ended September 30, 2010, net cash used in financing activities was $0.1 million as compared to $0.6 million provided by financing activities in the three months ended September 30, 2009. Financing activities in the third quarter of 2009 included $0.5 million received from the exercise of stock options and $0.1 million of tax benefit from the vesting of stock-based equity awards.

In the nine months ended September 30, 2010, we used net cash in financing activities of $144.7 million as compared to $2.1 million used in financing activities in the nine months ended September 30, 2009. Financing activities in the nine months ended September 30, 2010 included $143.8 million in payments for the redemption of our 3.75% Notes, described above and in Note 7 to our condensed consolidated financial statements, as well as $3.4 million in net repayments of other borrowings during the first nine months of 2010. These outflows were partially offset by $2.0 million in tax impact from stock-based equity awards and $0.5 million received from the exercise of stock options. Financing activities in the first nine months of 2009 included $1.6 million in tax impact from stock-based equity awards and $1.2 million used in net repayments of borrowings.

Debt Instruments

Credit Facility

We have an agreement with various lenders that provides for a $475.0 million senior secured revolving credit facility maturing on September 19, 2012. Subject to the conditions specified in the credit facility, borrowings under the credit facility are to be used for working capital, capital expenditures and other general corporate purposes. The entire unused portion of the credit facility is available for the issuance of letters of credit.

As of September 30, 2010, we had approximately $191.2 million of letters of credit issued under the credit facility and no outstanding revolving loans. The remaining $283.8 million was available for revolving loans or issuing new letters of credit. Amounts borrowed under the credit facility bear interest, at our option, at a rate equal to either (a) the Eurodollar Rate (as defined in the credit facility) plus 0.875% to 1.75%, as determined by the ratio of our total funded debt to consolidated EBITDA (as defined in the credit facility), or (b) the base rate (as described below) plus 0.00% to 0.75%, as determined by the ratio of our total funded debt to consolidated EBITDA. Letters of credit issued under the credit facility are subject to a letter of credit fee of 0.875% to 1.75%, based on the ratio of our total funded debt to consolidated EBITDA. We are also subject to a commitment fee of 0.15% to 0.35%, based on the ratio of our total funded debt to consolidated EBITDA, on any unused availability under the credit facility. The base rate equals the higher of (i) the Federal Funds Rate (as defined in the credit facility) plus 1/2 of 1% or (ii) the bank’s prime rate.

The credit facility contains certain covenants, including covenants with respect to maximum funded debt to consolidated EBITDA, maximum senior debt to consolidated EBITDA and minimum interest coverage, in each case as specified in the credit facility. For purposes of calculating the maximum funded debt to consolidated EBITDA ratio and the maximum senior debt to consolidated EBITDA ratio, our maximum funded debt and maximum senior debt are reduced by all cash and cash equivalents (as defined in the credit facility) held by us in excess of $25.0 million. As of September 30, 2010, we were in compliance with all of its covenants. The credit facility limits certain acquisitions, mergers and consolidations, capital expenditures, asset sales and prepayments of indebtedness and, subject to certain exceptions, prohibits liens on material assets. The credit facility also limits the payment of dividends and stock repurchase programs in any fiscal year except those payments or other distributions

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payable solely in capital stock. The credit facility provides for customary events of default and carries cross-default provisions with our continuing indemnity and security agreement with our sureties and all of our other debt instruments exceeding $15.0 million in borrowings. If an event of default (as defined in the credit facility) occurs and is continuing, on the terms and subject to the conditions set forth in the credit facility, amounts outstanding under the credit facility may be accelerated and may become or be declared immediately due and payable.

The credit facility is secured by a pledge of all of the capital stock of our U.S. subsidiaries, 65% of the capital stock of our foreign subsidiaries and substantially all of our assets. Our U.S. subsidiaries guarantee the repayment of all amounts due under the credit facility.

3.75% Convertible Subordinated Notes

Since May 14, 2010, none of our 3.75% Notes were outstanding. The 3.75% Notes were originally issued in April 2006 for an aggregate principal amount of $143.8 million and required semi-annual interest payments on April 30 and October 30 until maturity.

On May 14, 2010, we redeemed all of the $143.8 million aggregate principal amount outstanding of the 3.75% Notes at a redemption price of 101.607% of the principal amount of the notes, plus accrued and unpaid interest to, but not including, the date of redemption. The redemption resulted in the payment of the aggregate redemption price of $146.1 million and the recognition of a loss on extinguishment of debt of approximately $7.1 million. Included in the loss on early extinguishment of debt was a non-cash loss of $3.5 million related to the difference between the net carrying value and the estimated fair value of the 3.75% Notes calculated as of the date of redemption, the payment of $2.3 million representing the 1.607% redemption premium above par value and a non-cash loss of $1.3 million from the write-off of the remaining unamortized deferred financing costs related to the 3.75% Notes. Additionally, the redemption of all of the outstanding 3.75% Notes is expected to result prospectively in the elimination of approximately $6.7 million in aggregate 2011 annual cash and non-cash interest expense, net of tax.

The $126.6 million of convertible subordinated notes on the consolidated balance sheet as of December 31, 2009 was presented net of a debt discount of $17.2 million, which was being amortized as interest expense. The effective interest rate that was used to calculate total interest expense for the 3.75% Notes was 7.85%.

Off-Balance Sheet Transactions

As is common in our industry, we have entered into certain off-balance sheet arrangements in the ordinary course of business that result in risks not directly reflected in our balance sheets. Our significant off-balance sheet transactions include liabilities associated with non-cancelable operating leases, letter of credit obligations, commitments to expand our fiber optic networks, surety guarantees, multi-employer pension plan liabilities and obligations relating to our joint venture arrangements. Two of our operating units operate in separate joint venture structures which contain risks not directly reflected in our balance sheets. In association with one of these joint ventures, we have guaranteed all of the obligations of the joint venture under the contract with the customer. Additionally, our second joint venture arrangement qualifies as a general partnership, for which we are jointly and severally liable for all of the obligations of the joint venture. In each of these joint venture arrangements, each joint venturer has indemnified the other party for any liabilities incurred in excess of the liabilities for which the joint venturer is obligated to bear under the respective joint venture agreement. Other than as previously discussed, we have not engaged in any off-balance sheet financing arrangements through special purpose entities, and we have no other material guarantees of the work or obligations of third parties.

Leases

We enter into non-cancelable operating leases for many of our facility, vehicle and equipment needs. These leases allow us to conserve cash by paying a monthly lease rental fee for use of facilities, vehicles and equipment rather than purchasing them. We may decide to cancel or terminate a lease before the end of its term, in which case we are typically liable to the lessor for the remaining lease payments under the term of the lease.

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We have guaranteed the residual value of the underlying assets under certain of our equipment operating leases at the date of termination of such leases. We have agreed to pay any difference between this residual value and the fair market value of each underlying asset as of the lease termination date. As of September 30, 2010, the maximum guaranteed residual value was approximately $118.0 million. We believe that no significant payments will be made as a result of the difference between the fair market value of the leased equipment and the guaranteed residual value. However, there can be no assurance that future significant payments will not be required.

Letters of Credit

Certain of our vendors require letters of credit to ensure reimbursement for amounts they are disbursing on our behalf, such as to beneficiaries under our self-funded insurance programs. In addition, from time to time some customers require us to post letters of credit to ensure payment to our subcontractors and vendors under those contracts and to guarantee performance under our contracts. Such letters of credit are generally issued by a bank or similar financial institution. The letter of credit commits the issuer to pay specified amounts to the holder of the letter of credit if the holder demonstrates that we have failed to perform specified actions. If this were to occur, we would be required to reimburse the issuer of the letter of credit. Depending on the circumstances of such a reimbursement, we may also have to record a charge to earnings for the reimbursement. We do not believe that it is likely that any claims will be made under a letter of credit in the foreseeable future.

As of September 30, 2010, we had $191.2 million in letters of credit outstanding under our credit facility primarily to secure obligations under our casualty insurance program. These are irrevocable stand-by letters of credit with maturities generally expiring at various times throughout 2010 and 2011. Upon maturity, it is expected that the majority of these letters of credit will be renewed for subsequent one-year periods.

Performance Bonds and Parent Guarantees

Many customers, particularly in connection with new construction, require us to post performance and payment bonds issued by a financial institution known as a surety. These bonds provide a guarantee to the customer that we will perform under the terms of a contract and that we will pay subcontractors and vendors. If we fail to perform under a contract or to pay subcontractors and vendors, the customer may demand that the surety make payments or provide services under the bond. We must reimburse the surety for any expenses or outlays it incurs. Under our continuing indemnity and security agreement with our sureties and with the consent of our lenders under our credit facility, we have granted security interests in certain of our assets to collateralize our obligations to the sureties. In addition, we have assumed obligations with other sureties with respect to bonds issued on behalf of acquired companies that were outstanding as of the applicable dates of acquisition. To the extent these bonds have not expired or been replaced, we may be required to transfer to the applicable sureties certain of our assets as collateral in the event of a default under these other agreements. We may be required to post letters of credit or other collateral in favor of the sureties or our customers in the future. Posting letters of credit in favor of the sureties or our customers would reduce the borrowing availability under our credit facility. To date, we have not been required to make any reimbursements to our sureties for bond-related costs. We believe that it is unlikely that we will have to fund significant claims under our surety arrangements in the foreseeable future. As of September 30, 2010, the total amount of outstanding performance bonds was approximately $1.1 billion, and the estimated cost to complete these bonded projects was approximately $246.1 million.

From time to time, we guarantee the obligations of our wholly owned subsidiaries, including obligations under certain contracts with customers, certain lease obligations and, in some states, obligations in connection with obtaining contractors’ licenses. We have also guaranteed the obligations of our wholly owned subsidiary under the joint venture arrangement with a third party engineering company, which is described in the accompanying notes to the condensed consolidated financial statements.

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Contractual Obligations

As of September 30, 2010, our future contractual obligations are as follows (in thousands):

			Remainder
	Total		of 2010		2011		2012		2013		2014		Thereafter
Operating lease obligations	$	119,416	$	12,699	$	39,195	$	25,841	$	18,916	$	9,400	$	13,365
Committed capital expenditures for fiber optic networks under contracts with customers		19,454		10,706		8,748		0		0		0		0
Total	$	138,870	$	23,405	$	47,943	$	25,841	$	18,916	$	9,400	$	13,365

The committed capital expenditures for fiber optic networks represent commitments related to signed contracts with customers. The amounts are estimates of costs required to build the networks under contract. The actual capital expenditures related to building the networks could vary materially from these estimates.

As of September 30, 2010, the total unrecognized tax benefit related to uncertain tax positions was $48.5 million. We estimate that none of this will be paid within the next twelve months. However, we believe that it is reasonably possible that within the next twelve months unrecognized tax benefits may decrease up to $9.0 million due to the expiration of certain statutes of limitations. We are unable to make reasonably reliable estimates regarding the timing of future cash outflows, if any, associated with the remaining unrecognized tax benefits.

The above table does not reflect estimated contractual obligations under the multi-employer pension plans in which our union employees participate. Certain of our operating units are parties to various collective bargaining agreements that require us to provide to the employees subject to these agreements specified wages and benefits, as well as to make contributions to multi-employer pension plans. Our multi-employer pension plan contribution rates are determined annually and assessed on a “pay-as-you-go” basis based on our union employee payrolls, which cannot be determined for future periods because the location and number of union employees that we have employed at any given time and the plans in which they may participate vary depending on the projects we have ongoing at any time and the need for union resources in connection with those projects. Additionally, the Employee Retirement Income Security Act of 1974, as amended by the Multi-Employer Pension Plan Amendments Act of 1980, imposes certain liabilities upon employers who are contributors to a multi-employer plan in the event of the employer’s withdrawal from, or upon termination of, such plan. None of our operating units have any current plans to withdraw from these plans, and accordingly, no withdrawal liabilities are reflected in the above table. We may also be required to make additional contributions to our multi-employer pension plans if they become underfunded, and these additional contributions will be determined based on our union employee payrolls. The Pension Protection Act of 2006 added new funding rules generally applicable to plan years beginning after 2007 for multi-employer plans that are classified as “endangered,” “seriously endangered,” or “critical” status. For a plan in critical status, additional required contributions and benefit reductions apply. We have been notified that two plans to which a Quanta operating unit contributes are in “critical” status, one of which requires additional contributions in the form of a surcharge on future benefit contributions required for future work performed by union employees covered by this plan. The amount of additional funds that we may be obligated to contribute to this plan in the future cannot be estimated and is not included in the above table, as such amounts will be based on future levels of work that require the specific use of those union employees covered by this plan. No additional contributions are required for the other plan in critical status.

Self-Insurance

We are insured for employer’s liability, general liability, auto liability and workers’ compensation claims. As of August 1, 2010, all policies were renewed with deductibles continuing at existing levels of $5.0 million per occurrence, other than employer’s liability, which continues to be subject to a deductible of $1.0 million. We also have employee healthcare benefit plans for most employees not subject to collective bargaining agreements, of which the primary plan is subject to a deductible of $350,000 per claimant per year. For the policy year ended July 31, 2009, employer’s liability claims were subject to a deductible of $1.0 million per occurrence, general

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liability and auto liability claims were subject to a deductible of $3.0 million per occurrence, and workers’ compensation claims were subject to a deductible of $2.0 million per occurrence. Additionally, for the policy year ended July 31, 2009, our workers’ compensation claims were subject to an annual cumulative aggregate liability of up to $1.0 million on claims in excess of $2.0 million per occurrence.

Losses under all of these insurance programs are accrued based upon our estimate of the ultimate liability for claims reported and an estimate of claims incurred but not reported, with assistance from third-party actuaries. These insurance liabilities are difficult to assess and estimate due to unknown factors, including the severity of an injury, the determination of our liability in proportion to other parties, the number of incidents not reported and the effectiveness of our safety program. The accruals are based upon known facts and historical trends and management believes such accruals to be adequate. As of September 30, 2010 and December 31, 2009, the gross amount accrued for insurance claims totaled $142.8 million and $153.6 million, with $101.5 million and $109.8 million considered to be long-term and included in other non-current liabilities. Related insurance recoveries/receivables as of September 30, 2010 and December 31, 2009 were $26.5 million and $33.7 million, of which $9.4 million and $13.4 million are included in prepaid expenses and other current assets and $17.1 million and $20.3 million are included in other assets, net.

We renew our insurance policies on an annual basis, and therefore deductibles and levels of insurance coverage may change in future periods. In addition, insurers may cancel our coverage or determine to exclude certain items from coverage, or the cost to obtain such coverage may become unreasonable. In any such event, our overall risk exposure would increase, which could negatively affect our results of operations and financial condition.

Concentration of Credit Risk

We are subject to concentrations of credit risk related primarily to our cash and cash equivalents and our accounts receivable, including amounts related to unbilled accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts. Substantially all of our cash investments are managed by what we believe to be high credit quality financial institutions. In accordance with our investment policies, these institutions are authorized to invest this cash in a diversified portfolio of what we believe to be high quality investments, which primarily include interest-bearing demand deposits, money market mutual funds and investment grade commercial paper with original maturities of three months or less. Although we do not currently believe the principal amount of these investments is subject to any material risk of loss, the weakness in the economy has significantly impacted the interest income we receive from these investments and is likely to continue to do so in the future. In addition, we grant credit under normal payment terms, generally without collateral, to our customers, which include electric power, natural gas and pipeline companies, telecommunications and cable television system operators, governmental entities, general contractors, and builders, owners and managers of commercial and industrial properties located primarily in the United States. Consequently, we are subject to potential credit risk related to changes in business and economic factors throughout the United States, which may be heightened as a result of ongoing depressed economic and financial market conditions. However, we generally have certain statutory lien rights with respect to services provided. Under certain circumstances, such as foreclosures or negotiated settlements, we may take title to the underlying assets in lieu of cash in settlement of receivables. In such circumstances, extended time frames may be required to liquidate these assets, causing the amounts realized to differ from the value of the assumed receivable. Historically, some of our customers have experienced significant financial difficulties, and others may experience financial difficulties in the future. These difficulties expose us to increased risk related to collectability of receivables and costs and estimated earnings in excess of billings on uncompleted contracts for services we have performed. Two customers accounted for approximately 18% and 15% of consolidated revenues during the three months ended September 30, 2010, and one of these customers accounted for approximately 11% of revenues during the nine months ended September 30, 2010. These two customers represented approximately 14% and 11% of billed and accrued receivables at September 30, 2010. Revenues from these customers are included in the Natural Gas and Pipeline Infrastructure Services segment. No other customer represented 10% or more of revenues during the three and nine months ended September 30, 2010. No customers represented 10% or more of revenues during the three and nine months ended September 30, 2009 or of accounts receivable at December 31, 2009.

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Litigation

We are from time to time party to various lawsuits, claims and other legal proceedings that arise in the ordinary course of business. These actions typically seek, among other things, compensation for alleged personal injury, breach of contract and/or property damages, punitive damages, civil penalties or other losses, or injunctive or declaratory relief. With respect to all such lawsuits, claims and proceedings, we record reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. None of these proceedings, separately or in the aggregate, are expected to have a material adverse effect on our financial position, results of operations or cash flows.

Related Party Transactions

In the normal course of business, we enter into transactions from time to time with related parties. These transactions typically take the form of facility leases with prior owners of certain acquired companies and payables to prior owners who are now employees.

New Accounting Pronouncements

Adoption of New Accounting Pronouncements.  On January 1, 2010, we adopted new standards aimed to improve the visibility of off-balance sheet vehicles previously exempt from consolidation and address practice issues involving the accounting for transfers of financial assets as sales or secured borrowings. The impact from the adoption of these new standards was not material.

Outlook

We and our customers are operating in a difficult business environment in light of the slow economy and uncertainty in the capital markets. Our customers are also facing stringent regulatory processes as they implement projects to enhance their infrastructure, which has resulted in reductions or delays in spending in 2010. These economic and regulatory factors have negatively affected our results to date in 2010, as well as our expectations for the fourth quarter of 2010. We believe, however, that economic conditions are beginning to improve and activity and spending in the industries we serve will begin to increase in 2011, although the regulatory obstacles our customers must overcome create continuing uncertainty as to the timing of spending. We continue to be optimistic, however, about our long-term opportunities in each of the industries we serve, and we believe that our financial and operational strengths will enable us to manage the challenges and uncertainties created by the adverse economic and market conditions.

Electric Power Infrastructure Services Segment

The North American electric grid is aging and requires significant upgrades to meet future demands for power. Over the past several years, many utilities across the country have begun to implement plans to improve their transmission systems. As a result, new construction, structure change-outs, line upgrades and maintenance projects on many transmission systems are occurring or planned. In addition, we anticipate that utilities will continue to integrate “smart grid” technologies into their transmission and distribution systems to improve grid management and create efficiencies. Over the past two years, we have seen a slowdown in spending by our customers on their distribution systems, which we believe is due primarily to adverse economic and market conditions, and although we have seen some increase in spending in the third quarter of 2010, we expect distribution spending to remain at low levels throughout 2010. We have also seen some delays in transmission projects currently proposed, primarily due to regulatory processes. As an indirect result of the economic downturn, overall demand for electricity has decreased, which could also affect the timing and scope of transmission and distribution spending by our customers on their existing systems or planned projects. We believe, however, that utilities remain committed to the expansion and strengthening of their transmission infrastructure, with planning, engineering and funding for many of their projects in place, and to date we have not seen the current economic conditions negatively impact our customers’ plans for spending on transmission expansion, with demand for electricity and the need for reliability expected to increase over the long-term. As a result of these and other factors, including the renewable energy initiatives discussed below, we anticipate a continued shift over the long-term in our electric power service mix to a greater

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proportion of high-voltage electric power transmission and substation projects. Many of these projects have a long-term horizon, and timing and scope can be affected by numerous factors, including regulatory permitting, siting and right-of-way issues, environmental approvals and economic and market conditions.

We believe that opportunities also exist as a result of renewable energy initiatives. State renewable portfolio standards, which set required or voluntary standards for how much power is required to be generated from renewable energy sources, as well as general environmental concerns, are driving the development of renewable energy projects, with a stronger focus currently on utility-scale and distributed solar projects. Tax incentives and government stimulus funds are also expected to encourage development. We expect the construction of renewable energy facilities, including wind and solar power generation sources, to result in the need for additional transmission lines and substations to transport the power from the facilities, which are often in remote locations, to demand centers. We also believe opportunities exist for us to provide engineering, project management, materials procurement and installation services for renewable projects, as reflected by recent awards to us of contracts for these services on various utility-scale solar facilities. However, the economic feasibility of renewable energy projects, and therefore the attractiveness of investment in the projects, may depend on the availability of tax incentive programs or the ability of the projects to take advantage of such incentives, and there is no assurance that the government will extend existing tax incentives or create new incentive or funding programs. Furthermore, to the extent that renewable energy projects are developed to satisfy mandatory state renewable portfolio standards, spending on such projects would likely decline if states were to lessen those standards. Additionally, the timing of investments in renewable energy projects and related infrastructure could be affected by regulatory permitting processes and siting issues, as well as capital constraints if the financial markets worsen or remain stagnant. Overall renewable energy spending has declined since the latter part of 2008, due in part to slow government funding and tight credit markets. However, we realized some increased spending in the fourth quarter of 2009 and throughout 2010, and we expect future spending on renewable energy initiatives to continue to increase in 2011 and beyond.

We believe that certain provisions of the American Recovery and Reinvestment Act of 2009 (ARRA), enacted in February 2009, will also increase demand for our services over the long-term. The economic stimulus programs under the ARRA include incentives in the form of grants, loans, tax cuts and tax credits for renewable energy, energy efficiency and electric power and telecommunications infrastructure. Additionally, loan guarantee programs partially funded through the ARRA and cash grant programs have recently been implemented for renewable energy and transmission reliability and efficiency projects. For example, in October 2009, approximately $3.4 billion in cash grants were awarded to foster the transition to a “smarter” electric grid. We anticipate investments in many of these initiatives to create opportunities for our operations, although many projects are waiting on government funding. While we cannot predict with certainty the timing of the implementation of the programs under the ARRA, the funding of stimulus projects or the scope of projects once funding is received, we anticipate projects to have aggressive deployment schedules due to the deadlines under the stimulus plan, resulting in increased opportunities in the near term.

Several existing or pending legislative or regulatory actions may also positively affect demand for the services provided by this segment in the long-term, in particular in connection with electric power infrastructure and renewable energy spending. For example, legislative or regulatory action that alleviates some of the siting and right-of-way challenges that impact transmission projects would potentially accelerate future transmission projects. We also anticipate increased infrastructure spending by our customers as a result of legislation requiring the power industry to meet federal reliability standards for its transmission and distribution systems and providing further incentives to the industry to invest in and improve maintenance on its systems. Additionally, the proposed federal renewable portfolio standard could further advance the installation of renewable generation facilities and related electric transmission infrastructure. It is uncertain, however, if or when pending legislation or regulations will be effective or whether the potentially beneficial provisions we highlight in this outlook will be included in the final legislation, and this uncertainty could affect our customers’ decisions regarding potential projects and the timing thereof.

Several industry and market trends are also prompting customers in the electric power industry to seek outsourcing partners. These trends include an aging utility workforce, increasing costs and labor issues. The need to ensure available labor resources for larger projects is also driving strategic relationships with customers.

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Natural Gas and Pipeline Infrastructure Services Segment

We also see potential growth opportunities over the long-term in our natural gas and pipeline operations, primarily in natural gas and oil pipeline installation and maintenance and related services such as gas gathering and pipeline integrity. We believe our acquisition of Price Gregory, which significantly expanded our services in this segment and positioned us as a leading provider of transmission pipeline infrastructure services in North America, will allow us to take advantage of these opportunities. However, the natural gas industry is cyclical as a result of fluctuations in natural gas prices, and over the past twelve months, spending in this industry has been negatively impacted by lower natural gas prices, a reduction in the development of natural gas resources, regulatory permitting processes and capital constraints. We believe that the cyclical nature of this business can be somewhat normalized by opportunities associated with an increase in the ongoing development of unconventional shale formations that produce natural gas and/or oil, which will require the construction of transmission pipeline infrastructure to connect production with demand centers. Additionally, we believe the goals of clean energy and energy independence for the United States will make abundant, low-cost natural gas the fuel of choice to replace coal for power generation until renewable energy becomes a significant part of the overall generation of electricity, creating the demand for additional production of natural gas and the need for related infrastructure. In the past, our natural gas operations have been challenged by lower margins overall, due in part to the impact to our natural gas distribution services from declines in new housing construction. As a result, as evidenced by our acquisition of Price Gregory, we have primarily focused our efforts on transmission pipeline opportunities and other more profitable services, and we are optimistic about these operations in the future. The timing and scope of projects could be affected, however, by economic and market conditions as well as lower natural gas prices and regulatory requirements, especially in the near-term.

Telecommunications Infrastructure Services Segment

In connection with our telecommunications services, we expect increasing opportunities in the future as $7.2 billion in stimulus funding for broadband deployment to underserved areas is awarded to municipalities, states and rural telephone companies, some of which are long-standing customers. Approximately $3.0 billion in funding has been awarded under the ARRA for numerous broadband deployment projects across the U.S., and the balance is expected to be awarded within the next few months. However, to receive funding for these projects, certain awardees may be required to file environmental impact statements, which may delay projects. If funding is delayed, the demand for our telecommunications services will be affected. Although the timing of funding is uncertain, once funding is received, projects are expected to be rapidly deployed to meet stimulus deadlines, which we anticipate will increase spending in late 2010 and into 2011. We also anticipate spending by our customers on fiber optic “backhaul” to provide links from wireless cell sites to broader voice, data and video networks. Additionally, we believe opportunities exist in the long-term as a result of the continued deployment of fiber to the premises and fiber to the node, or FTTx, by wireline carriers and government organizations, although we have seen a significant slowdown in FTTx deployment since the second quarter of 2008. We anticipate that these opportunities will continue to be limited throughout 2010, with the possibility of some increase in spending for FTTx deployment in 2011. If economic and market conditions remain stagnant or further deteriorate, however, deployment spending could be further limited or delayed. In connection with our wireless services, several wireless companies have announced plans to increase their cell site deployments over the next few years, including the expansion of next generation technology. In particular, the transition to 4G and LTE (long-term evolution) technology by wireless service providers will require the enhancement of their networks. Each of these opportunities is anticipated to increase demand for our telecommunications services over the long-term, with the timing and amount of spending from these opportunities being dependent on future economic, market and regulatory conditions.

We anticipate that the future initiatives by the telecommunication carriers will serve as a catalyst for the cable industry to begin a new network upgrade cycle to expand its service offerings in an effort to retain and attract customers; however, the timing of any upgrades is uncertain.

Fiber Optic Licensing Segment

Our Fiber Optic Licensing segment is experiencing growth primarily through geographic expansion, with a focus on markets where secure high-speed networks are important, such as enterprises, communications carriers and educational, financial services and healthcare institutions. We continue to see opportunities for growth both in

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the markets we currently serve and new markets, although we cannot predict the adverse impact, if any, of the ongoing economic downturn on these growth opportunities. To support the growth in this business, we anticipate the need for continued capital expenditures. Our Fiber Optic Licensing segment typically generates higher margins than our other operations, but we can give no assurance that the Fiber Optic Licensing segment margins will continue at historical levels.

Conclusion

Spending by our customers declined in 2009 and has remained slow throughout 2010; however, we are seeing growth opportunities beginning in 2011 in our electric transmission, gas transmission, telecommunications, renewables and fiber licensing operations despite negative forces from the economic recession and heightened regulatory requirements. We expect spending on electric distribution services to remain at low levels throughout 2010, although there was an increase in these services in the third quarter of 2010. We are continuing to see reduced or stagnant spending for our gas distribution services, which have been affected by the current economic conditions. The weakness in the capital markets has also negatively affected some of our customers’ plans for projects, and it may continue to do so in the future, which could delay, reduce or suspend future projects if funding is not available. However, we do not believe these factors are material or will affect revenue growth in 2011 and beyond. We anticipate that utilities will increase spending on projects to upgrade and build out their transmission systems and outsource more of their work, due in part to their aging workforce issues. We believe that we remain the partner of choice for many utilities in need of broad infrastructure expertise, specialty equipment and workforce resources. We also believe that we are one of the largest full-service solution providers of natural gas transmission and distribution services in North America, which positions us to leverage opportunities in the natural gas industry. Furthermore, as new technologies emerge in the future for communications and digital services such as voice, video and data, telecommunications and cable service providers are expected to work quickly to deploy fast, next-generation fiber and wireless networks, and we are recognized as a key partner in deploying these services.

We also expect to continue to see our margins generally improve over the long-term as a result of our margin enhancement strategies, although reductions in spending by our customers could further negatively affect our margins, with the most significant impact to our telecommunications operations and natural gas and electric power distribution services. Additionally, margins may be negatively impacted on a quarterly basis due to adverse weather conditions and other factors as described in “Understanding Margins” above. We continue to focus on the elements of the business we can control, including costs, the margins we accept on projects, collecting receivables, ensuring quality service and rightsizing initiatives to match the markets we serve.

Capital expenditures for 2010 are expected to be approximately $170 million to $180 million, of which approximately $35 million to $45 million of these expenditures are targeted for fiber optic network expansion with the majority of the remaining expenditures for operating equipment. We expect 2010 capital expenditures to continue to be funded substantially through internal cash flows and cash on hand.

We continue to evaluate other potential strategic acquisitions or investments to broaden our customer base, expand our geographic area of operation and grow our portfolio of services. We believe that additional attractive acquisition candidates exist primarily as a result of the highly fragmented nature of the industry, the inability of many companies to expand and modernize due to capital constraints and the desire of owners for liquidity. We consider that our financial strength and experienced management team will be attractive to acquisition candidates.

We believe certain international regions also present significant opportunities for growth across many of our operations. We are strategically evaluating ways in which we can apply our expertise to strengthen the infrastructure in various foreign countries where infrastructure enhancements are increasingly important. For example, we are actively pursuing opportunities in growth markets where we can leverage our technology or proprietary work methods, such as our energized services, to establish a presence in these markets.

We believe that we are adequately positioned to capitalize upon opportunities and trends in the industries we serve because of our proven full-service operations with broad geographic reach, financial capability and technical expertise. Additionally, we believe that these industry opportunities and trends will increase the demand for our services over the long-term; however, we cannot predict the actual timing, magnitude or impact these

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opportunities and trends will have on our operating results and financial position, especially in light of the slow economy, weak capital markets and regulatory environment.

Uncertainty of Forward-Looking Statements and Information

This Quarterly Report on Form 10-Q includes “forward-looking statements” reflecting assumptions, expectations, projections, intentions or beliefs about future events that are intended to qualify for the “safe harbor” from liability established by the Private Securities Litigation Reform Act of 1995. You can identify these statements by the fact that they do not relate strictly to historical or current facts. They use words such as “anticipate,” “estimate,” “project,” “forecast,” “may,” “will,” “should,” “could,” “expect,” “believe,” “plan,” “intend” and other words of similar meaning. In particular, these include, but are not limited to, statements relating to the following:

•  Projected operating or financial results;

•  The effects of any acquisitions and divestitures we may make, including the acquisitions of Price Gregory and Valard;

•  Expectations regarding our business outlook, growth and capital expenditures;

•  The effects of competition in our markets;

•  The benefits of renewable energy initiatives, the American Recovery and Reinvestment Act of 2009 (ARRA) and other existing or potential energy legislation;

•  The current economic conditions and trends in the industries we serve; and

•  Our ability to achieve cost savings.

These forward-looking statements are not guarantees of future performance and involve or rely on a number of risks, uncertainties, and assumptions that are difficult to predict or beyond our control. We have based our forward-looking statements on our management’s beliefs and assumptions based on information available to our management at the time the statements are made. We caution you that actual outcomes and results may differ materially from what is expressed, implied or forecasted by our forward-looking statements and that any or all of our forward-looking statements may turn out to be wrong. Those statements can be affected by inaccurate assumptions and by known or unknown risks and uncertainties, including the following:

•  Quarterly variations in our operating results;

•  Adverse economic and financial conditions, including weakness in the capital markets;

•  Trends and growth opportunities in relevant markets;

•  Delays, reductions in scope or cancellations of existing or pending projects, including as a result of regulatory processes or capital constraints that may impact our customers;

•  The impact of adverse weather conditions on our operations;

•  Our dependence on fixed price contracts and the potential to incur losses with respect to those contracts;

•  Estimates relating to our use of percentage-of-completion accounting;

•  Our ability to generate internal growth;

•  The effect of natural gas and oil prices on our operations and growth opportunities;

•  Our ability to effectively compete for new projects and obtain contract awards for projects bid;

•  Our ability to successfully negotiate, execute, perform and complete pending and existing contracts;

•  Cancellation provisions within our contracts and the risk that contracts expire and are not renewed or are replaced on less favorable terms;

•  Liabilities for claims that are not insured;

•  Unexpected costs or liabilities that may arise from lawsuits or indemnity claims related to the services we perform;

•  Risks relating to the potential unavailability or cancellation of third party insurance;

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•  The failure to effectively integrate Price Gregory and Valard and their operations or to realize potential synergies, such as cross-selling opportunities, from the acquisitions;

•  Our ability to attract skilled labor and retain key personnel and qualified employees;

•  The potential shortage of skilled employees;

•  Our ability to realize our backlog;

•  Estimates and assumptions in determining our financial results and backlog;

•  Our ability to successfully identify, complete and integrate other acquisitions;

•  The potential adverse impact resulting from uncertainty surrounding acquisitions, including the ability to retain key personnel from the acquired businesses and the potential increase in risks already existing in our operations such as those relating to our unionized workforce and occupational health and safety matters;

•  Potential failure of renewable energy initiatives, the ARRA or other existing or potential energy legislation to result in increased spending in the industries we serve;

•  The adverse impact of goodwill, other intangible asset or long-lived asset impairments;

•  The potential inability to realize a return on our capital investments in our fiber optic infrastructure;

•  The inability of our customers to pay for services following a bankruptcy or other financial difficulty;

•  Beliefs and assumptions about the collectability of receivables;

•  The impact of our unionized workforce on our operations and on our ability to complete future acquisitions;

•  Liabilities associated with union pension plans, including underfunding liabilities;

•  Potential liabilities relating to occupational health and safety matters;

•  Risks associated with expanding our business in international markets, including losses that may arise from currency fluctuations;

•  Liabilities and/or harm to our reputation resulting from failures of our joint venture partners to perform;

•  Risks related to the implementation of an information technology solution;

•  Potential lack of available suppliers, subcontractors or equipment manufacturers;

•  Our growth outpacing our infrastructure;

•  Our ability to obtain performance bonds;

•  Requirements relating to governmental regulation and changes thereto, including state and federal telecommunication regulations affecting our fiber optic licensing business, additional regulation relating to existing or potential foreign operations and changes to legislation under the presidential administration, including those related to occupational health and safety, health care and financial reform;

•  Potential exposure to environmental liabilities;

•  Increased costs resulting from new legislation, including the recently enacted healthcare reform legislation;

•  Our ability to continue to meet the requirements of the Sarbanes-Oxley Act of 2002;

•  Inability to enforce our intellectual property rights or the obsolescence of such rights;

•  Potential losses associated with hedged transactions;

•  The cost of borrowing, availability of credit, debt covenant compliance, interest rate fluctuations and other factors affecting our financing, leasing and investment activities and thereby our ability to grow our operations;

•  Rapid technological and structural changes that could reduce the demand for the services we provide; and

•  The other risks and uncertainties as are described elsewhere herein and under Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2009 and as may be detailed from time to time in our other public filings with the SEC.

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All of our forward-looking statements, whether written or oral, are expressly qualified by these cautionary statements and any other cautionary statements that may accompany such forward-looking statements or that are otherwise included in this report. In addition, we do not undertake and expressly disclaim any obligation to update or revise any forward-looking statements to reflect events or circumstances after the date of this report or otherwise.

Item 3.   Quantitative and Qualitative Disclosures About Market Risk.

The information in this section should be read in connection with the information on financial market risk related to changes in interest rates and currency exchange rates in Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk, in our Annual Report on Form 10-K for the year ended December 31, 2009. Our primary exposure to market risk relates to unfavorable changes in concentration of credit risk, interest rates and currency exchange rates.

Credit Risk.  We are subject to concentrations of credit risk related primarily to our cash and cash equivalents and our accounts receivable including amounts related to unbilled accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts. Substantially all of our cash investments are managed by what we believe to be high credit quality financial institutions. In accordance with our investment policies, these institutions are authorized to invest this cash in a diversified portfolio of what we believe to be high-quality investments, which primarily include interest-bearing demand deposits, money market mutual funds and investment grade commercial paper with original maturities of three months or less. Although we do not currently believe the principal amounts of these investments are subject to any material risk of loss, the weakness in the economy has significantly impacted the interest income we receive from these investments and is likely to continue to do so in the future. In addition, as we grant credit under normal payment terms, generally without collateral, we are subject to potential credit risk related to our customers’ ability to pay for services provided. This risk may be heightened as a result of ongoing depressed economic and financial market conditions. However, we believe the concentration of credit risk related to trade accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts is limited because of the diversity of our customers. We perform ongoing credit risk assessments of our customers and financial institutions and obtain collateral or other security from our customers when appropriate.

Interest Rate and Market Risk.  Currently, we do not have any significant assets or obligations with exposure to significant interest rate and market risk.

Currency Risk.  In the third quarter of 2009, one of our Canadian operating units entered into three forward contracts with settlement dates in December 2009, June 2010 and November 2010, to reduce foreign currency risk associated with anticipated customer sales that are denominated in South African rand. This same operating unit also entered into three additional forward contracts to reduce the foreign currency exposure associated with a series of forecasted intercompany payments denominated in U.S. dollars to be made over a twelve-month period, which also had settlement dates in December 2009, June 2010 and November 2010.

The South African rand to Canadian dollar forward contracts had an aggregate notional amount of approximately $11.0 million ($CAD) at origination, with contracts for approximately $5.8 million ($CAD) and $3.2 million ($CAD) being settled in December 2009 and June 2010. These contracts have been accounted for by the Canadian operating unit as cash flow hedges. Accordingly, changes in the fair value of the forward contracts between the South African rand and the Canadian dollar are recorded in other comprehensive income (loss) prior to their settlement and have been and will be reclassified into earnings in the periods in which the hedged transactions occur. During the three and nine months ended September 30, 2010, gains of $0.1 million and $0.2 million were recorded to other comprehensive income related to the remaining South African rand to Canadian dollar forward contract. Additionally, during the second quarter of 2010, approximately $0.1 million of loss was reclassified into current period earnings in connection with the contract settled in June 2010.

The Canadian dollar to U.S. dollar forward contracts had an aggregate notional amount of approximately $9.5 million (U.S.) at origination, with contracts for approximately $5.0 million and $2.7 million having settled in December 2009 and June 2010. Such contracts have also been accounted for as cash flow hedges. Accordingly, changes in the fair value of the forward contracts between the Canadian dollar and the U.S. dollar are recorded in other comprehensive income (loss) prior to their settlement and have been or will be reclassified into earnings in the periods in which the hedged transactions occur. During the three and nine months ended September 30, 2010, a loss

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of $0.1 million and a gain of $0.3 million were recorded to other comprehensive income related to the remaining Canadian dollar to U.S. dollar forward contract. Additionally, during the second quarter of 2010, approximately $0.3 million of loss was reclassified into current period earnings in connection with the contract settled in June 2010.

Item 4.   Controls and Procedures.

Attached as exhibits to this quarterly report on Form 10-Q are certifications of Quanta’s Chief Executive Officer and Chief Financial Officer that are required in accordance with Rule 13a-14 of the Securities Exchange Act of 1934, as amended (the Exchange Act). This “Controls and Procedures” section includes information concerning the controls and controls evaluation referred to in the certifications, and it should be read in conjunction with the certifications for a more complete understanding of the topics presented.

Evaluation of Disclosure Controls and Procedures

Our management has established and maintains a system of disclosure controls and procedures that are designed to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act, such as this quarterly report, is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms. The disclosure controls and procedures are also designed to provide reasonable assurance that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

As of the end of the period covered by this quarterly report, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15(b) of the Exchange Act. This evaluation was carried out under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer. Based on this evaluation, these officers have concluded that, as of September 30, 2010, our disclosure controls and procedures were effective to provide reasonable assurance of achieving their objectives.

Internal Control over Financial Reporting

There has been no change in our internal control over financial reporting that occurred during the quarter ended September 30, 2010, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Design and Operation of Control Systems

Our management, including the Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system’s objectives will be met. The design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Further, because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, within the company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty and breakdowns can occur because of simple errors or mistakes. Controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the controls. The design of any system of controls is based in part on certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures.

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PART II — OTHER INFORMATION

QUANTA SERVICES, INC. AND SUBSIDIARIES

Item 1.   Legal Proceedings.

We are from time to time a party to various lawsuits, claims and other legal proceedings that arise in the ordinary course of business. These actions typically seek, among other things, compensation for alleged personal injury, breach of contract and/or property damages, punitive damages, civil penalties or other losses, or injunctive or declaratory relief. With respect to all such lawsuits, claims and proceedings, we record reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. We do not believe that any of these proceedings, separately or in the aggregate, would be expected to have a material adverse effect on our financial position, results of operations or cash flows.

Item 1A.   Risk Factors.

Except as provided below, as of the date of this filing, there have been no material changes from the risk factors previously disclosed in Item 1A to Part I of our Annual Report on Form 10-K for the year ended December 31, 2009 (2009 Annual Report). An investment in our common stock involves various risks. When considering an investment in our company, you should carefully consider all of the risk factors described herein and in our 2009 Annual Report. These risks and uncertainties are not the only ones facing us and there may be additional matters that are not known to us or that we currently consider immaterial. All of these risks and uncertainties could adversely affect our business, financial condition or future results and, thus, the value of an investment in our company.

We may incur additional healthcare costs arising from federal healthcare reform legislation.

In March 2010, the Patient Protection and Affordable Care Act and the Health Care and Education Reconciliation Act of 2010 were signed into law in the U.S. This legislation expands health care coverage to many uninsured individuals and expands coverage to those already insured. The changes required by this legislation could cause us to incur additional healthcare and other costs, but we do not expect any material short-term impact on our financial results as a result of the legislation and are currently assessing the extent of any long-term impact.

Item 2.   Unregistered Sales of Equity Securities and Use of Proceeds.

Issuer Purchases of Equity Securities

The following table contains information about our purchases of equity securities during the three months ended September 30, 2010.

								(d) Maximum
						(c) Total Number		Number of Shares
						of Shares Purchased		that may yet be
						as Part of Publicly		Purchased Under
	(a) Total Number of			(b) Average Price		Announced Plans		the Plans or
Period	Shares Purchased			Paid Per Share		or Programs		Programs
August 1, 2010 — August 31, 2010		5,195	(i)	$	17.95		None		None

(i) Represents shares purchased from employees to satisfy tax withholding obligations in connection with the vesting of restricted stock awards pursuant to Quanta’s 2007 Stock Incentive Plan and InfraSource’s 2004 Omnibus Stock Incentive Plan.

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Item 6.   Exhibits.

Exhibit
No.				Description
	2	.1		Share Purchase Agreement dated as of October 22, 2010, by and among Quanta Services, Inc., Quanta Services EC Canada Ltd., Quanta Services CC Canada Ltd., the shareholders of Valard Construction (2008) Ltd., Valard Construction Ltd. and Sharp’s Construction Services 2006 Ltd., and the covenantors named therein (previously filed as Exhibit 2.1 to the Company’s Form 8-K (No. 001-13831) filed on October 28, 2010 and incorporated herein by reference)
	3	.1	—	Restated Certificate of Incorporation (previously filed as Exhibit 3.3 to the Company’s Form 10-Q (No. 001-13831) filed August 14, 2003 and incorporated herein by reference)
	3	.2	—	Amended and Restated Bylaws (previously filed as Exhibit 3.2 to the Company’s 2000 Form 10-K (No. 001-13831) filed April 2, 2001 and incorporated herein by reference)
	3	.3		Certificate of Designation of Series F Preferred Stock (previously filed as Exhibit 3.1 to the Company’s Form 8-K (No. 001-13831) filed on October 28, 2010 and incorporated herein by reference)
	10	.1		Support Agreement dated as of October 25, 2010, by and among Quanta Services, Inc., Quanta Services EC Canada Ltd., Quanta Services CC Canada Ltd., and certain shareholders of Valard Construction (2008) Ltd., Valard Construction Ltd. and Sharp’s Construction Services 2006 Ltd. (previously filed as Exhibit 10.1 to the Company’s Form 8-K (No. 001-13831) filed on October 28, 2010 and incorporated herein by reference)
	31	.1*	—	Certification of Periodic Report by Chief Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
	31	.2*	—	Certification of Periodic Report by Chief Financial Officer pursuant to Rule 13a-14(a)/15d-14(a) and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
	32	.1*	—	Certification of Periodic Report by Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
	101	.INS†		XBRL Instance Document
	101	.SCH†		XBRL Taxonomy Extension Schema Document
	101	.CAL†		XBRL Taxonomy Extension Calculation Linkbase Document
	101	.LAB†		XBRL Taxonomy Extension Label Linkbase Document
	101	.PRE†		XBRL Taxonomy Extension Presentation Linkbase Document

*

Filed or furnished herewith

†

Filed or furnished with this Quarterly Report on Form 10-Q included in Exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Operations for the three and nine months ended September 30, 2010 and 2009, (ii) the Consolidated Balance Sheets as of September 30, 2010 and December 31, 2009 and (iii) the Consolidated Statements of Cash Flows for the three and nine months ended September 30, 2010 and 2009. Users of the XBRL data furnished herewith are advised pursuant to Rule 406T of Regulation S-T that this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities and Exchange Act of 1934, and otherwise is not subject to liability under these sections.

54

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant, Quanta Services, Inc., has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Quanta Services, Inc.

By:  /s/  Derrick A. Jensen

Derrick A. Jensen

Vice President and

Chief Accounting Officer

Dated: November 9, 2010

55

INDEX TO EXHIBITS

Exhibit
No.				Description
	2	.1		Share Purchase Agreement dated as of October 22, 2010, by and among Quanta Services, Inc., Quanta Services EC Canada Ltd., Quanta Services CC Canada Ltd., the shareholders of Valard Construction (2008) Ltd., Valard Construction Ltd. and Sharp’s Construction Services 2006 Ltd., and the covenantors named therein (previously filed as Exhibit 2.1 to the Company’s Form 8-K (No. 001-13831) filed on October 28, 2010 and incorporated herein by reference)
	3	.1	—	Restated Certificate of Incorporation (previously filed as Exhibit 3.3 to the Company’s Form 10-Q (No. 001-13831) filed August 14, 2003 and incorporated herein by reference)
	3	.2	—	Amended and Restated Bylaws (previously filed as Exhibit 3.2 to the Company’s 2000 Form 10-K (No. 001-13831) filed April 2, 2001 and incorporated herein by reference)
	3	.3		Certificate of Designation of Series F Preferred Stock (previously filed as Exhibit 3.1 to the Company’s Form 8-K (No. 001-13831) filed on October 28, 2010 and incorporated herein by reference)
	10	.1		Support Agreement dated as of October 25, 2010, by and among Quanta Services, Inc., Quanta Services EC Canada Ltd., Quanta Services CC Canada Ltd., and certain shareholders of Valard Construction (2008) Ltd., Valard Construction Ltd. and Sharp’s Construction Services 2006 Ltd. (previously filed as Exhibit 10.1 to the Company’s Form 8-K (No. 001-13831) filed on October 28, 2010 and incorporated herein by reference)
	31	.1*	—	Certification of Periodic Report by Chief Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
	31	.2*	—	Certification of Periodic Report by Chief Financial Officer pursuant to Rule 13a-14(a)/15d-14(a) and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
	32	.1*	—	Certification of Periodic Report by Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
	101	.INS†		XBRL Instance Document
	101	.SCH†		XBRL Taxonomy Extension Schema Document
	101	.CAL†		XBRL Taxonomy Extension Calculation Linkbase Document
	101	.LAB†		XBRL Taxonomy Extension Label Linkbase Document
	101	.PRE†		XBRL Taxonomy Extension Presentation Linkbase Document

*

Filed or furnished herewith

†

Filed or furnished with this Quarterly Report on Form 10-Q included in Exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Operations for the three and nine months ended September 30, 2010 and 2009, (ii) the Consolidated Balance Sheets as of September 30, 2010 and December 31, 2009 and (iii) the Consolidated Statements of Cash Flows for the three and nine months ended September 30, 2010 and 2009. Users of the XBRL data furnished herewith are advised pursuant to Rule 406T of Regulation S-T that this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of section 18 of the Securities and Exchange Act of 1934, and otherwise is not subject to liability under these sections.

56

EX-31.1

Exhibit 31.1

I, John R. Colson, certify that:

     1. I have reviewed this quarterly report on Form 10-Q of Quanta Services, Inc.;

     2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

     3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

     4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

     (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

     (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

     (c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

     (d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

     5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

     (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

     (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

By:	/s/ JOHN R. COLSON
	John R. Colson,
	Chairman and Chief Executive Officer

Date: November 9, 2010

EX-31.2

Exhibit 31.2

I, James H. Haddox, certify that:

     1. I have reviewed this quarterly report on Form 10-Q of Quanta Services, Inc.;

     2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

     3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

     4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

     (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

     (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

     (c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

     (d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

     5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

     (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

     (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

By:	/s/ JAMES H. HADDOX
	James H. Haddox,
	Chief Financial Officer

Date: November 9, 2010

EX-32.1

Exhibit 32.1

CERTIFICATION
PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     Each of the undersigned officers of Quanta Services, Inc. (the “Company”) hereby certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to such officer’s knowledge that:

     (1) the accompanying Form 10-Q report for the period ending September 30, 2010 as filed with the U.S. Securities and Exchange Commission (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934, as amended; and

     (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/s/ JOHN R. COLSON  

John R. Colson, 

Chairman and Chief Executive Officer 

Dated: November 9, 2010

/s/ JAMES H. HADDOX  

James H. Haddox, 

Chief Financial Officer 

Dated: November 9, 2010