We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the NCI Building Systems, Inc. 401(k) Profit Sharing Plan of our reports dated December 21, 2010, with respect to the consolidated financial statements of NCI Building Systems, Inc. and the effectiveness of internal control over financial reporting of NCI Building Systems, Inc., included in the Annual Report (Form 10-K) of NCI Building Systems, Inc. for the year ended October 31, 2010, filed with the Securities and Exchange Commission.