Exhibit 23.4

                       CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the  incorporation by reference in the  registration  statement of
MasTec,  Inc. and  subsidiaries on Form S-4 (No.  333-46361) of our report dated
February 25, 1998,  on our audit of the  consolidated  financial  statements  of
Sistemas e Instalaciones de Telecomunicacion,  S.A. (Sintel) and subsidiaries as
of December 31,1997 and for the year then ended, which report is incorporated by
reference in this Annual Report on Form 10-K.




ARTHUR ANDERSEN LLP
Madrid, Spain
March 27, 1998