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Window Products Manufacturers

Listed Alphabetically


Guardian is a worldwide supplier of flat glass, and a leader in soft coat high performance glazings for construction. With a plant near Pittsburgh in Floreffe, PA, Specified Systems is a Guardian Glazing Connections Partner, linking the technical experts at Guardian with architects and end users.


Kawneer North America offers architectural aluminum building products and systems for the commercial construction industry. In 2010, Traco, a premier manufacturer of windows, was acquired by Alcoa and is now a division of Kawneer. Together, we provide customers with a comprehensive product portfolio that includes entrances, framing systems, windows and curtain wall systems.


Peerless Architectural Windows and Doors has been supplying commercial windows to our company since 1993. They manufacture a competitive line of projected, fixed, and hung windows for new construction and retrofit. Peerless offers high quality products combined with timely delivery.

Quaker Windows

Quaker is our choice for competitively priced, quality single hung and sliding windows for the extended care, hotel, and residence hall markets and competitive projected windows for commercial construction.

Specialty Applications

Since Specified Systems provides complete glazing packages, we offer FRP doors from both Special-lite and Vale; interior removable partitions from Raco and Kawneer; Sage Electrochormic glass; Heavy Glass interior systems and doors; fire rated glass and frames from TGP, Safti, and Vetrotech; folding glass doors from Nanawall and Peerless; Bullet Resistant Glazing; Blast and Impact applications; Sunshades and Light Shelves. .


Tubelite has been an industry leader manufacturing aluminum storefronts, entrances, and aluminum curtain wall systems for decades. They have now introduced their Eco-efficient process where 83% of their material is made from reclaimed material and their new Thermal-Block entrances and frames.

Vitro Glass Company

Vitro Architectural Glass (formerly PPG Glass), North America’s largest glass producer, is exclusively dedicated to glass innovation and fueled by the same people, plants and products that made PPG Glass one of the industry’s most respected and reliable commercial glass manufacturers.
Vitro Glass is also committed to environmental sustainability.