
Low-maintenance, strong, stable and tough: Everything you want your home to be, and everything that Integrity from Marvin Windows and Doors delivers. Offered in the most popular sizes, styles and options, you will find an Integrity window or door that is perfect for virtually any project you are working on. Integrity's durable Ultrex fiberglass exteriors and optional handcrafted wood or Ultrex interiors provide you with long-lasting, worry-free windows and doors that are built to perform and beautiful in your home.
The exterior of Integrity products are made with Ultrex, a pultruded fiberglass material with a patented coating process which is weather-resistant, strongstable, and long-lasting. Simply put, Ultrex is superior to vinyl, vinyl-clad and roll-form aluminum clad windows in virtually every category. And Integrity from Marvin has over a decade of field installations to prove it.
The All Ultrex series offers fiberglass on the interior and exterior of the window or door - ideal for replacement, multi-residential, and commercial projects - Now available in special sizes!
The Wood Ultrex Series provides Ultrex exteriors and handcrafted wood interiors - ideal for remodeling and residential projects looking for high-efficiency and top of the line aesthetics. With an interior of carefully selected and handcrafted wood, the Integrity Wood-Ultrex Series is as beautiful as they are functional.
No matter which Integrity you choose, they’re easy-to-order, easy-to-install, delivered on time, and energy-efficient. In short, an exceptional value that is built to perform.



