Integrity Windows and Doors from Marvin are made with virtually indestructible Ultrex fiberglass and meet or exceed federal Energy Star guidelines.
Integrity windows and doors are made with Ultrex®, a pultruded fiberglass Integrity patented that outperforms and outlasts vinyl, roll-form aluminum and other fiberglass composites. Integrity uses Ultrex and their proprietary pultrusion process to manufacture high-demand windows and doors that endure all elements without showing age or wear.
Integrity windows and doors are Built to Perform® with the features and options to fit your unique project. Integrity's focus is providing high quality products built to your specifications and delivered to us in an industry-leading 10 days. Integrity uses Ultrex pultruded fiberglass to build long-lasting, beautiful windows and doors backed by our never wavering focus on customer service, and a 20-year warranty on glass seals with a 10-year warranty on manufacturer defects.
The facts prove it. Ultrex fiberglass is eight times stronger than vinyl and three times stronger than vinyl/wood composites. It resists fading, chalking, peeling and cracking, giving you unparalleled strength and durability. We’re constantly testing Ultrex to prove it’s the toughest window material available.
View Toughness InfoUltrex® fiberglass leads the industry in third party finish ratings. Ultrex, with its patented finish, is the first and only fiberglass finish to be verified to any of AAMA’s 624-10 finish specification for fiber reinforced thermoset profiles (fiberglass). This means you can count on Ultrex to resist fading, chalking, cracking, and peeling to keep your home looking great for years to come.
View Finish InformationIntegrity windows and doors are more than just tough, they’re also energy efficient. Integrity products meet or exceed federal ENERGY STAR® guidelines. So with Integrity windows and doors, not only will you reduce your environmental impact, but you’ll also see significant savings on your heating and cooling bill over time.
View energy efficiency infoIntegrity offers a variety of options that can enhance the look of both traditional and contemporary design. Integrity's All Ultrex and Wood-Ultrex product lines feature the strength of Ultrex pultruded fiberglass and offer a complete line of popular styles and design options, including divided lites and exterior trim.
View Options