CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 40,650	$ 52,054
Accounts receivable, less allowance for doubtful accounts of $4,439 and $4,460, respectively	263,165	267,470
Other receivables	14,278	16,373
Inventories	8,893	8,430
Prepaid expenses and other	24,313	24,209
Costs and estimated earnings in excess of billings	32,608	28,122
Assets related to discontinued operations	265	339
Total current assets	384,172	396,997
PROPERTY AND EQUIPMENT, NET	47,769	46,861
GOODWILL	114,588	114,588
IDENTIFIABLE INTANGIBLE ASSETS, NET	36,504	37,383
OTHER NONCURRENT ASSETS	5,811	5,993
Total assets	588,844	601,822
CURRENT LIABILITIES:
Current maturities of notes to former owners	2,000	2,000
Accounts payable	96,779	100,825
Accrued compensation and benefits	37,630	44,093
Billings in excess of costs and estimated earnings	58,407	64,588
Accrued self-insurance expense	30,110	29,398
Other current liabilities	25,823	28,168
Liabilities related to discontinued operations	339	366
Total current liabilities	251,088	269,438
LONG-TERM DEBT	7,000
DEFERRED INCOME TAX LIABILITIES	8,936	9,941
OTHER LONG-TERM LIABILITIES	8,068	8,421
Total liabilities	275,092	287,800
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par, 5,000,000 shares authorized, none issued and outstanding
Common stock, $.01 par, 102,969,912 shares authorized, 41,123,365 and 41,123,365 shares issued, respectively	411	411
Treasury stock, at cost, 3,469,874 and 3,488,438 shares, respectively	(37,415)	(37,468)
Additional paid-in capital	318,807	318,123
Retained earnings	13,073	14,768
Comfort Systems USA, Inc. stockholders' equity	294,876	295,834
Noncontrolling interests	18,876	18,188
Total stockholders' equity	313,752	314,022
Total liabilities and stockholders' equity	$ 588,844	$ 601,822