Cornerstone Building Brands, headquartered in Cary, North Carolina, was formed in April 2019 following the merger of NCI Building Systems, Inc. and Ply Gem Parent, LLC. The company is the largest manufacturer of exterior building products in North America, serving the commercial, residential, and repair & remodel markets. Their product portfolio includes windows, siding, metal roofing, and wall systems, catering to a wide range of construction needs.
Notable affiliations include partnerships with Habitat for Humanity and the involvement of GRAMMY® Award-winning trio Lady A as ambassadors for their "Home for Good" project. Key achievements include the launch of the Ply Gem Pro Academy, which provides enhanced training resources for exterior contractors. Cornerstone Building Brands has made a significant impact by not only leading in market share but also contributing to community development and professional training in the construction industry.
