Windor Bi-Fold Doors
A History of Innovation
It was a bold innovation for the home-building market when we introduced an entryway door that looked as beautiful as wood and was more durable. At Therma-Tru, we have been revolutionizing the industry from the start—a spirit you can continue to expect from the leading entry door brand most preferred by building professionals.
We Sell Bi-Fold Doors
Our legacy of innovation continues with an investment in our new Innovation Center, which opened in early 2018. Located in Monclova, Ohio, just minutes from our corporate headquarters, the Innovation Center is a 30,000-square-foot facility that houses our Research and Development and Product Management teams.
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.
As we’ve expanded our product offerings, we’ve also joined additional communities. Today our corporate headquarters is just outside of Toledo in Maumee, Ohio, and our new Innovation Center is in Monclova, Ohio. We have two manufacturing facilities: One in Butler, Indiana, and one in Matamoros, Mexico. Fypon has manufacturing locations in Yantai, China, and Matamoros, Mexico. Our vast selection of products is available throughout North America.
We are committed to advancing the industry with quality products that hinge on performance and open the door to style and comfort.
Awards and Recognition
Homebuilding experts and top consumer magazines rank Therma-Tru among the best entry door brands for quality, beauty and energy efficiency. We’re proud to offer doors that our customers love — and that are respected in the building industry.