CERTIFICATE OF CORRECTION TO DESIGNATION SERIES A

EXHIBIT 3.6

CERTIFICATE OF CORRECTION
TO THE
CERTIFICATE OF DESIGNATION
OF
SERIES A CONVERTIBLE PREFERRED STOCK
OF
QUANTA SERVICES, INC.

QUANTA SERVICES, INC. (the "Corporation"), a corporation organized and
existing under and by virtue of the General Corporation Law of the State of
Delaware, DOES HEREBY CERTIFY:

1. The name of the Corporation is Quanta Services, Inc.

2. A Certificate of Designation of Series A Convertible Preferred Stock
of the Corporation was filed with the Secretary of State of Delaware on
September 21, 1999 and said Certificate requires correction as permitted by
subsection (f) of Section 103 of the General Corporation Law of the State of
Delaware.

3. The inaccuracy or defect of said Certificate of Designation to be
corrected is that certain language was inadvertently omitted from Section 2(b)
on page 2 of the copy of the Certificate of Designation which was filed with the
Secretary of State.

4. Section 2(b) of the Certificate of Designation is hereby corrected
to read as follows:

"(b) Participating. In addition to the
Preferred Dividend payable on the Series A Preferred
Stock, the shares of Series A Preferred Stock shall
be entitled to receive, out of any funds legally
available therefor, the amount of any cash or
non-cash dividends or distributions declared and
paid on the shares of Common Stock, as if the shares
of Series A Preferred Stock had been converted
immediately prior to the record date for payment of
such dividends or distributions; provided, however,
the shares of Series A Preferred Stock shall not be
entitled to receive any non-cash dividend or
distribution if the number or kind of securities
issuable upon conversion of the Series A Preferred
Stock is adjusted under Section 5 hereof in
connection therewith."



IN WITNESS WHEREOF, the Corporation has caused this Certificate to be
executed by its duly authorized officer this _____ day of ___________, 2000.

QUANTA SERVICES, INC.


By:
----------------------------
Name:
Title: