<SUBMISSION>
<ACCESSION-NUMBER>0001209191-04-055058
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20041130
<FILING-DATE>20041130
<DATE-OF-FILING-DATE-CHANGE>20041130
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>SIKORSKI THOMAS
<CIK>0001202000
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-13831
<FILM-NUMBER>041174474
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>ONE LAFAYETTE PLACE
<STREET2>THIRD FLOOR
<CITY>GREENWICH
<STATE>CT
<ZIP>06830
<PHONE>203-661-6601
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>QUANTA SERVICES INC
<CIK>0001050915
<ASSIGNED-SIC>1731
<IRS-NUMBER>742851603
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>1360 POST OAK BLVD
<STREET2>SUITE 2100
<CITY>HOUSTON
<STATE>TX
<ZIP>77056
<PHONE>7133506000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>1360 POST OAK BLVD SUITE 2100
<CITY>HOUSTON
<STATE>TX
<ZIP>77056
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-11-30</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001050915</issuerCik>
        <issuerName>QUANTA SERVICES INC</issuerName>
        <issuerTradingSymbol>PWR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001202000</rptOwnerCik>
            <rptOwnerName>SIKORSKI THOMAS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LAFAYETTE PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FLOOR</rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>This report is being filed to note the termination of the reporting person's insider status.  Mr. Sikorski resigned from the Board of Directors of the Issuer effective November 30, 2004. As of the date of his resignation, Mr. Sikorski, as previously reported, was the record holder of 61,723 shares of the Issuer's restricted common stock.</remarks>

    <ownerSignature>
        <signatureName>Thomas R. Denison, As Attorney-In-Fact for Thomas Sikorski (see previously filed Power of Attorney)</signatureName>
        <signatureDate>2004-11-30</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
