FIBERGLASS WINDOWS by Pella Windows and Doors Created from incredibly tough fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that have the quality appearance 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 throughout winter. If you’re in Boston and looking for superior durability and high energy efficiency, while maintaining the outstanding visual appeal of a painted wood window, Pella Impervia is a great choice. 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. Outstanding energy efficiency. FIBERGLASS WINDOW COLOR OPTIONS Pella Impervia fiberglass windows offer a variety of color options to complement your space. 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 Boston or schedule a free in-home consultation and find the perfect windows for your home. Schedule Now!