Great Lakes Window

Great Lakes Window is a vinyl window manufacturer headquartered in Maumee, Ohio, producing a broad range of residential windows for the new construction and replacement markets. Founded in 1967, the company is part of Cornerstone Building Brands, one of the largest exterior building products manufacturers in North America, which also owns Crestline Windows & Doors and other fenestration brands.

Great Lakes Window produces double-hung, casement, awning, slider, bay and bow, and specialty windows with an emphasis on consistent quality and energy performance for the production homebuilding segment. The company distributes through an extensive network of wholesale distributors and building material dealers across the Midwest, South, and East.

As part of Cornerstone Building Brands, Great Lakes Window benefits from national manufacturing scale and broad distribution infrastructure while maintaining its regional brand identity in the Midwest market.