FIBERGLASS WINDOWS by Pella Windows and Doors Made from incredibly tough fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that have the quality look of painted wood. The Impervia line is made from Duracast, a patented fiberglass composite that resists warping in the summer months and doesn’t become brittle in the winter. If you’re in Salt Lake City and searching for superior durability and high energy efficiency, while keeping the outstanding visual attraction of a painted wood window, then Pella Impervia windows are for you. Protected by one of the top warranties in the market, Pella Impervia replacement windows involve little to no maintenance, ensuring that your windows will look outstanding for years to come. 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 countless color options to complement your home. We allow you the flexibility to pick the ideal 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 to take a closer look at the Pella Impervia line, stop by our showroom in Salt Lake City or schedule a free in-home consultation and find the perfect style for your home. Schedule Now!