FIBERGLASS WINDOWS by Pella Windows and Doors Made from incredibly tough fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that provide the quality finish that looks like 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 throughout winter. If you’re in Springfield and looking for superior durability and high energy efficiency, while maintaining the impeccable visual allure of a painted wood window, look no further than Pella Impervia. Covered 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 year after year. 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 a variety of 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 eliminates VOCs, keeping the air in your home healthier. If you want to get a closer look at the Pella Impervia line, come by our showroom in Springfield or schedule a free in-home consultation and find the perfect style for your room. Schedule Now!