FIBERGLASS WINDOWS by Pella Windows and Doors Produced from incredibly strong fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that have the quality finish that looks like 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 in the winter. If you’re in Hanover and looking for top-of-the-line durability and energy efficiency, while maintaining the outstanding visual allure of a painted wood window, then Pella Impervia windows are for you. Protected by one of the best warranties in the market, Pella Impervia replacement windows involve little to no maintenance, ensuring that your windows will look great for years to come. Pella Impervia® Pella Impervia® Incredibly strong fiberglass Duracast®. An extremely durable material available in windows and doors. Excellent performance. Exceptional energy efficiency. FIBERGLASS WINDOW COLOR OPTIONS Pella Impervia fiberglass windows offer a variety of color options to complement your room. 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, come by our showroom in Hanover or schedule a free in-home consultation and find the perfect fit for your home. Schedule Now!