GAF Certified contractors have met high levels of education and training and display commitment to quality and service.
Anderson is largest window and door manufacturer in North America, providing durable, high quality products for over 100 years.
CertainTeed is a leading and innovative North American manufacturer of building materials including roofing, trim, vinyl siding, railing, decking, insulation, and many others.
GAF has become North America's biggest manufacturer of residential and commercial roofing and are committed to supporting distributors and roofing contractors, as well as helping property owners make their best roofing choices.
Harvey Building Products
Harvey is a leading manufacturer and distributor of quality building products, including windows, doors, and enclosures.