Integrity Windows and Doors is the world's largest manufacturer of windows and doors made with Ultrex®—a highly-durable, virtually maintenance free state-of-the-art pultruded fiberglass material that outperforms vinyl and roll-form aluminum. Integrity offers a complete line of standard-sized window and door options that are Energy Star qualified. Choose from Integrity’s All-Ultrex or Wood-Ultrex series, featuring wood interiors and Ultrex exteriors. Based in Fargo, North Dakota, Integrity products are Built to perform and backed by first-class customer service.
Wood Ultrex Windows & Doors
Wood-Ultrex Series windows and doors feature exteriors of Ultrex fiberglass and beautiful real wood interiors. Setting new standards in low maintenance and top aesthetics, Integrity Wood-Ultrex series combines the most popular sizes and styles of windows and improves them with Ultrex ® durability, elegant wood interiors and standard ENERGY
STAR-qualified performance. Take a look at their full line of products, then explore the range of options that make an Integrity window the perfect fit for you.
All Ultrex Windows & Doors
All Ultrex Series windows and doors feature Ultrex construction inside and out. Beautiful, easy to use and as low-maintenance as a material can get, Ultrex® provides exceptional aesthetics, outstanding durability, and standard ENERGY STAR-qualified performance. Six exterior finishes combine with pultruded fiberglass construction to offer virtually indestructible exteriors, while the low-maintenance classic white profiled interiors provide a beautiful classic appearance.