Therma-Tru Doors

Therma-Tru's roots go back to 1962 when David Welles, a retired Owens Corning executive, purchased a bankrupt building supply company in Toledo, Ohio. In 1983, the company launched its Fiber-Classic style, the first fiberglass door on the market, creating a product never seen before: An entryway door that looked as beautiful as wood but with exceptional performance.

"People just couldn't believe it," says Deke Welles, the founder’s son and President of Therma-Tru from 1989 - 2001. "The product that looked so good was actually made of fiberglass.”

Energy Efficiency

Therma-Tru’s fiberglass entry door systems are ENERGY STAR® compliant and NFRC3 Certified, helping homeowners save money on energy costs and protecting the environment through superior energy efficiency. Filled with polyurethane foam4, Therma-Tru fiberglass doors provide as much as four times the insulation of most wood doors.


We are the nation's leading manufacturer of fiberglass and steel exterior door systems, and we are the most preferred brand of entry doors among building professionals.* Our attention to detail in styling, including our glass innovations, have brought improved curb appeal and value to our customers' homes, and the security and durability features built into every Therma-Tru door brings home comfort and security.

Manufacturer Gallery

White Patio Doors by Procraft Windows
French Door Installed by Procraft Windows
Front Doors and Windows by Procraft Windows
French Patio Door by Procraft Windows

Why Procraft?

Procraft is one of the top window and door sales and installation companies in the Pacific Northwest.  Since 1985 we have served over 17,000 customers in Snohomish and King counties.  We use only the highest quality products to bring light and beauty to your home.  Our attention to detail and customer service sets us apart from the rest.  Procraft’s knowledgeable consultants will help you choose the perfect windows and doors to suit your home which our Journeyman Carpenter will perfectly install with care and expertise.  All backed by our Lifetime Installation Warranty.

Red Homeward Front Entry Door by Procraft

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Therma-Tru 2021 Full Line Catalog

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