EXHIBIT 99.1


[QUANTA SERVICES LOGO]                                             PRESS RELEASE


03-10
FOR IMMEDIATE RELEASE

Contacts:     James Haddox, CFO                Ken Dennard / ksdennard@drg-e.com
              Reba Reid                        Lisa Elliott / lelliott@drg-e.com
              Quanta Services, Inc.            DRG&E
              713-629-7600                     713-529-6600


                      QUANTA SERVICES ANNOUNCES OFFERING OF
               $175 MILLION OF CONVERTIBLE SUBORDINATED DEBENTURES

HOUSTON - OCTOBER 9, 2003 - Quanta Services, Inc. (NYSE:PWR) today announced
that it plans to raise $175 million, subject to market conditions, through an
offering of convertible subordinated debentures due 2023. Quanta Services also
plans to grant to the initial purchasers of the debentures an option to purchase
up to an additional $35 million aggregate principal amount of debentures. The
proceeds will be applied to the company's obligations under its senior notes and
existing credit facility.

         The debentures will be issued in a private placement and are expected
to be resold by the initial purchasers to qualified institutional buyers under
Rule 144A of the Securities Act of 1933, as amended (the "Securities Act"). The
debentures and the shares of common stock issuable upon conversion of the
debentures will not be registered under the Securities Act or any state
securities laws and may not be offered or sold in the United States absent
registration or an applicable exemption from registration requirements. This
press release does not constitute an offer to sell, or the solicitation of, or
an offer to buy, the debentures or any other securities.

         Quanta Services, Inc. is a leading provider of specialized contracting
services, delivering end-to-end network solutions for electric power, gas,
telecommunications and cable television industries. The company's comprehensive
services include designing, installing, repairing and maintaining network
infrastructure nationwide.






Statements in this press release that contain "forward-looking statements"
within the meaning of Section 27A of the Securities Act of 1933, as amended, and
Section 21E of the Securities Exchange Act of 1934, as amended, include, but are
not limited to, statements regarding the offering, the issuance of the
debentures and the amount and use of proceeds. Such statements are based on
management's belief as well as assumptions made by and information currently
available to management, and such statements are inherently subject to a variety
of risks and uncertainties. Although Quanta's management believes that the
expectations reflected in such forward-looking statements are reasonable, it can
give no assurance that such expectations will prove to have been correct. These
risk factors include, among others, risks of a continued economic downturn that
could lead to less demand for Quanta's services, Quanta's inability to access
sufficient funding in the future to finance desired growth, possible variations
in Quanta's operating results, Quanta's dependence on fixed price contracts,
possible adverse effects on Quanta's results of operations due to goodwill
impairments, possible contract cancellations, the potential for rapid
technological and structural changes in the industries Quanta serves which could
reduce the demand for Quanta's services, competition, inability or failure to
obtain or maintain necessary performance bonds, failure to generate internal
growth, limitations of Quanta's corporate management infrastructure, departure
of key personnel, risks related to Quanta's unionized workforce, the inability
to attract and retain qualified employees, self-insurance, potential
environmental liabilities, the ability of Quanta to effectively integrate the
operations of acquired companies, potential conflicts of interest resulting from
First Reserve's investment in Quanta, limitations on the ability to seek
remedies against Arthur Andersen LLP, Quanta's former auditor, and provisions in
Quanta's corporate governing documents making an acquisition of Quanta more
difficult, as well as other general risks related to the industries in which
Quanta operates. Should one or more of these risks materialize, or should
underlying assumptions prove incorrect, actual results may differ materially
from those expected. Investors are urged to refer to Quanta's reports filed with
the Securities and Exchange Commission, which contain a discussion of the risk
factors that could impact these areas and Quanta's overall business and
financial performance. Given these concerns, investors and analysts should not
place undue reliance on forward-looking statements.




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