Therma-Tru Corporation, headquartered in Maumee, Ohio, is a leading manufacturer of fiberglass and steel entry door systems and components for both residential and commercial applications. Founded in 1969, the company is a subsidiary of Fortune Brands Home & Security, Inc. and is widely recognized for its energy-efficient, durable, and stylish entry doors, including its innovative fiberglass and steel door lines, as well as its decorative glass, trim, and hardware options.
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