Manufacturer DescriptionFiberFrame windows, doors, and sunrooms are manufactured by Comfort Line Ltd of Toledo, Ohio. It was with great foresight and vision that Comfort Line introduced the first fiberglass window ever made nearly 30 years ago. Recognizing the performance advantages of pultruded fiberglass, Comfort Line leadership took a bold and innovative step to be the first to apply this high quality, high performance material to window frames.
Comfort Line began in 1959 in Toledo, Ohio, and we’ve been leading in the window and door industry ever since. In addition to the first fiberglass window frame, Comfort Line also introduced the first fiberglass sliding patio door to the US market. Our patio doors top the list in industry standards with recognition as the Patio Door of the Future, and as a recipient of the Silver Achievement Award.