EX-23.1 3 g17905exv23w1.htm EX-23.1

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in the Registration Statements (Form S-8 Nos. 333-139996, 333-112010, 333-105781, 333-105516, 333-38932, 333-77823, 333-47003, 333-38940 and 333-30647 and Form S-3 Nos. 333-153845, 333-142083, 333-133252, 333-46067) of MasTec, Inc. of our report dated March 2, 2009 relating to the consolidated financial statements and the effectiveness of MasTec, Inc.’s internal control over financial reporting which appear in this Form 10-K.

/s/  BDO Seidman LLP

Miami, Florida

March 2, 2009