

In 1904, George Brown founded the General Roofing Manufacturing Company in East St. Louis, Illinois, making smooth roll and gravel-type roofing. Just over a decade later, the company was renamed CertainTeed, a contraction of a slogan still used today, "Quality Made Certain, Satisfaction Guaranteed."
Today, CertainTeed is a leading North American manufacturer of vinyl and fiber cement siding; vinyl and composite decking, railing and fencing; vinyl windows and patio doors; fiber glass residential, commercial and mechanical insulation; residential and commercial roofing; pipe and foundation systems. Both homeowners and building professionals across the nation have grown to rely on CertainTeed for innovative, high quality, high performance products.
Are the first choice of remodeling contractors and are the leading vinyl window for new construction.
Certainteed
Are offered with exclusive Thermaflect Low "E" glass that has the best U- and R-values of any double-glazed system available today - keeps homes cooler in summer, warmer in winter, and blocks 87% of UV rays.
Are supplied by a network of local distributors assures fast delivery, responsive service, and support you can count on.