<SUBMISSION>
<ACCESSION-NUMBER>0000950129-04-007195
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20040920
<ITEMS>8.01
<FILING-DATE>20040921
<DATE-OF-FILING-DATE-CHANGE>20040920
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>QUANTA SERVICES INC
<CIK>0001050915
<ASSIGNED-SIC>1731
<IRS-NUMBER>742851603
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
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<FORM-TYPE>8-K
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<FILE-NUMBER>001-13831
<FILM-NUMBER>041038284
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<BUSINESS-ADDRESS>
<STREET1>1360 POST OAK BLVD
<STREET2>SUITE 2100
<CITY>HOUSTON
<STATE>TX
<ZIP>77056
<PHONE>7133506000
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<STREET1>1360 POST OAK BLVD SUITE 2100
<CITY>HOUSTON
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<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>h18553e8vk.htm
<DESCRIPTION>QUANTA SERVICES, INC. - DATED 9/20/2004
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<P align="center" style="font-size: 14pt"><B>UNITED STATES SECURITIES AND EXCHANGE COMMISSION</B>

<DIV align="center" style="font-size: 12pt"><B>WASHINGTON, D.C. 20549</B>
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<P align="center" style="font-size: 18pt"><B>FORM 8-K</B>

<P align="center" style="font-size: 12pt"><B>CURRENT REPORT<BR>
PURSUANT TO SECTION 13 OR 15(D) OF THE<BR>
SECURITIES EXCHANGE ACT OF 1934</B>


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<P align="center" style="font-size: 12pt"><B>DATE OF REPORT (Date of earliest event reported): SEPTEMBER 20, 2004</B>

<P align="center" style="font-size: 24pt"><B>QUANTA SERVICES, INC.</B>

<DIV align="center" style="font-size: 10pt"><I>(Exact name of registrant as specified in its charter)</I></DIV>


<P align="center" style="font-size: 10pt"><B>Delaware</B>


<DIV align="center" style="font-size: 10pt"><I>(State or other jurisdiction of incorporation)</I></DIV>

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    <TD align="center" valign="top"><B>1-13831</B><BR>
<I>(Commission File No.)</I>
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    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>74-2851603</B><BR>
<I>(IRS Employer Identification No.)</I></TD>
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<P align="center" style="font-size: 10pt"><B>1360 Post Oak Boulevard, Suite&nbsp;2100<BR>
Houston, Texas 77056</B><BR>
<I>(Address of principal executive offices, including ZIP code)</I>



<P align="center" style="font-size: 10pt"><B>(713)&nbsp;629-7600</B><BR>
<I>(Registrant&#146;s telephone number, including area code)</I>



<P align="center" style="font-size: 10pt"><B>Not Applicable</B><BR>
<I>(Former name or former address, if changed since last report)</I>



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<P align="left" style="font-size: 10pt">Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (<I>see </I>General Instruction A.2. below):

<P align="left" style="font-size: 10pt"><FONT face="Wingdings">&#111;</FONT> Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)

<P align="left" style="font-size: 10pt"><FONT face="Wingdings">&#111;</FONT> Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)

<P align="left" style="font-size: 10pt"><FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

<P align="left" style="font-size: 10pt"><FONT face="Wingdings">&#111;</FONT> Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))


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<TR><TD></TD><TD colspan="8"><A HREF="#000">Item&nbsp;8.01 Other Events.</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">SIGNATURE</A></TD></TR>
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<P align="left" style="font-size: 10pt"><B>Item&nbsp;8.01 Other Events.</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On
September&nbsp;20, 2004, Quanta filed a prospectus supplement
pursuant to Rule&nbsp;424(b)(3) of the Securities Act of 1933, which included the
following disclosure:

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<TD valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#149;</TD>
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<TD valign="top">In June 2002 one of our customers, Adelphia
Communications Corporation, filed for bankruptcy. On
September&nbsp;17, 2004, we sold our prepetition receivable due
from Adelphia to a third party for approximately
$29.5&nbsp;million in cash, subject to $6.0&nbsp;million being
held by the buyer pending the resolution of certain preferential
payment claims. The sale of this receivable is not expected to
have a material effect on our financial results.</TD>
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<TR><TD>&nbsp;</TD></TR>

<TR>
<TD valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#149;</TD>
<TD>&nbsp;</TD>
<TD valign="top">In addition, on
September 15, 2004, we received a federal tax refund of
approximately $30.2 million. </TD>
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<TR><TD>&nbsp;</TD></TR>

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<TD valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#149;</TD>
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<TD valign="top">During the third quarter of 2004,
we also repaid approximately $18.8&nbsp;million in indebtedness
under the term loan portion of our letter of credit facility and
increased the letters of credit outstanding under the letter of
credit facility by the same amount.
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<P align="center" style="font-size: 10pt"><B>SIGNATURE</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

<P align="left" style="font-size: 10pt">Dated: September&nbsp;20, 2004

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    <TD colspan="3">QUANTA SERVICES, INC.<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
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    <TD>&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000">/s/ DANA A. GORDON
&nbsp;</TD>
    <TD>&nbsp;</TD>
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    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Name:&nbsp;&nbsp;</TD>
    <TD>Dana A. Gordon&nbsp;</TD>
    <TD>&nbsp;</TD>
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    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Title:&nbsp;&nbsp;</TD>
    <TD>Vice President - General Counsel&nbsp;</TD>
    <TD>&nbsp;</TD>
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