EXHIBIT 10.22



BANK OF AMERICA
BANC OF AMERICA LEASING & CAPITAL, LLC

                                                 Amendment Number 1
                                                 to Guaranty dated July 25, 2002

================================================================================

This Amendment Number 1 made this 4th day of September, 2002, to Guaranty dated
July 25, 2002 ( the "Guaranty"), between Banc of America Leasing & Capital, LLC
("Secured Party") and Penhall International Corp. ("Guarantor").


                              W I T N E S S E T H :

WHEREAS, Secured Party and Guarantor are parties to the Guaranty; and

WHEREAS, Secured Party and Guarantor desire to amend certain provisions of the
Guaranty;

NOW, THEREFORE, in consideration of the premises and the mutual obligations
hereinafter contained, and for the other good and valuable consideration, the
receipt whereof is hereby acknowledged, the parties hereto agree as follows:

    1.  Section 10A. (a) of Guaranty. Interest Coverage Ratio is hereby restated
        as follows: Interest Coverage ratio (minimum)



        Date                      Ratio
        ----                      -----
                               
        June 30, 2003             1.80
        June 30, 2004             1.95
        June 30, 2005             2.15
        December 31, 2006         2.25


    2.  Section 10A (b) of Guaranty. Leverage Ratio is hereby restated as
        follows: Leverage ratio (maximum)



        Date                      Ratio
        ----                      -----
                               
        June 30, 2003             5.20
        June 30, 2004             4.85
        June 30, 2005             4.55
        December 31, 2006         4.30


    3.  Except as amended hereby, the Guaranty shall remain in full force and
        effect and is in all respects hereby ratified and affirmed. Capitalized
        terms not otherwise defined herein shall have the meanings ascribed them
        in the Guaranty.

IN WITNESS WHEREOF, the parties hereunto have caused this instrument to be
executed by their duly authorized officers as of the day and year first above
written.




                                             
BANC OF AMERICA LEASING & CAPITAL, LLC          Penhall International Corp.
(Secured Party)                                 (Guarantor)



By: ___________________________________         By: ___________________________________

Printed Name: _________________________         Printed Name: _________________________

Title: ________________________________         Title: ________________________________