FIBERGLASS WINDOWS by Pella Windows and Doors Produced from amazingly strong fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that deliver the quality look of painted wood. The Impervia line is made from Duracast, a patented fiberglass composite that fights warping in the summer months and doesn’t become brittle during the winter. If you’re in Roanoke and looking for the best durability and energy efficiency, while keeping the outstanding visual appeal of a painted wood window, Pella Impervia is a great choice. Backed by one of the most extensive warranties in the market, Pella Impervia replacement windows involve little to no maintenance, ensuring that your windows will look outstanding for many years. Pella Impervia® Pella Impervia® Incredibly strong fiberglass Duracast®. An extremely durable material available in windows and doors. Excellent performance. Outstanding energy efficiency. FIBERGLASS WINDOW COLOR OPTIONS Pella Impervia fiberglass windows offer numerous color options to complement your home. We allow you the flexibility to pick the perfect windows at a budget you can afford. Pella utilizes an environmentally friendly painting process that removes VOCs, keeping the air in your home healthier. If you want a closer look at the Pella Impervia line, drop by our showroom in Roanoke or schedule a free in-home consultation and find the perfect style for your room. Schedule Now!