CertainTeed | 100,635 followers on LinkedIn. Quality Made Certain, Satisfaction Guaranteed. | CertainTeed®, a subsidiary of Saint-Gobain, is North America’s leading brand of sustainable exterior and interior building products. Headquartered in Malvern, Pa., CertainTeed has helped shape the building products industry for more than 100 years, through the responsible development of innovative and sustainable building products. Founded in 1904 as General Roofing Manufacturing Company, the firm's slogan "Quality Made Certain, Satisfaction Guaranteed,"​ quickly inspired the name “CertainTeed."​