Quaker Commercial Windows & Doors has been a recognized leader in the commercial window and door industry since 1949. Now, more than 76 years later, and led by a female-majority ownership group, Quaker’s presence in the commercial building sector is stronger than ever. Headquartered in Missouri, Quaker offers products for every commercial market segment and the diversity of these products speaks volumes to that point. Windows and doors. New construction or retro-fit. Aluminum, uPVC vinyl or even wood clad. Ratings as high as AW-100. Quaker has it and you can bank on those products having innovative, industry-altering technology built in. At Quaker, it’s more than just selling windows and doors — it’s about finding the right solution for your project.