In another installment of a special series with Professional Builder magazine, host Adam Grub tours inside of the Integrity Windows and Doors plant to take a look at the history and heritage of a brand whose success hinges on the people behind the scenes, the passionate teams who have helped fuel Integrity’s more than 20-year history of innovation and development in the fiberglass category.

See how it all started as a sheet of paper and a dream.

Posted by:Marvin

Marvin is a fourth-generation family-owned and -operated business, headquartered in Warroad, Minnesota, with more than 5,500 employees across 15 cities in North America. The Marvin portfolio of products for builders, architects and homeowners is designed to provide exceptional solutions for any project with a focus on creating better ways of living. Marvin products are distributed nationally through a network of independent dealers and are also exported internationally. Visit to learn more.

2 replies on “Behind the Scenes at Integrity Windows and Doors: Heritage

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