-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 ND+cPQts30GaO7egPegZV7yWKJAcYtMgxbbru3BPdEmGzGY1t6F93Be9Js1pLsaf
 nIAPm7kLF1BeQvrMMOeFMA==

<SEC-DOCUMENT>0001214203-03-000001.txt : 20030825
<SEC-HEADER>0001214203-03-000001.hdr.sgml : 20030825
<ACCEPTANCE-DATETIME>20030825124652
ACCESSION NUMBER:		0001214203-03-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030821
FILED AS OF DATE:		20030825

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KLUMB DENNIS M
		CENTRAL INDEX KEY:			0001214203

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13831
		FILM NUMBER:		03863919

	MAIL ADDRESS:	
		STREET 1:		19705 W LINCOLN
		CITY:			NEW BERLIN
		STATE:			WI
		ZIP:			53146

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			QUANTA SERVICES INC
		CENTRAL INDEX KEY:			0001050915
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRICAL WORK [1731]
		IRS NUMBER:				742851603
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1360 POST OAK BLVD
		STREET 2:		SUITE 2100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056
		BUSINESS PHONE:		7133506000

	MAIL ADDRESS:	
		STREET 1:		1360 POST OAK BLVD SUITE 2100
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001214203d20030825f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-21</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0001050915</issuerCik><issuerName>QUANTA SERVICES INC</issuerName>        <issuerTradingSymbol>PWR</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001214203</rptOwnerCik><rptOwnerName>KLUMB DENNIS M</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>1360 POST OAK BOULEVARD, SUITE 2100</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>HOUSTON</rptOwnerCity><rptOwnerState>TX</rptOwnerState><rptOwnerZipCode>77056</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Senior Vice President</officerTitle><otherText></otherText></reportingOwnerRelationship></report
ingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-08-21</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>3095</value></transactionShares><transactionPricePerShare><value>8.2</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>25120</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDer
ivativeTable><derivativeTable></derivativeTable><footnotes></footnotes><ownerSignature><signatureName>Pamela L. Kunkemoeller, Atty in Fact</signatureName><signatureDate>2003-08-25</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----