Why Choose Ultrex?
Ultrex pultruded fiberglass, a material patented nearly 20 years ago when we pioneered the fiberglass windows and door category. Integrity windows have led the category ever since with a commitment to a product that’s tough, smart, long-lasting and worry-free. They don’t just claim Ultrex pultruded fiberglass is the toughest window material available. They prove it. Through a variety of punishing tests in harsh conditions, Integrity windows made with Ultrex comes out on top again and again.