FIBERGLASS WINDOWS by Pella Windows and Doors Produced from amazingly tough fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that provide 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 Cape Cod and searching for the best durability and energy efficiency, while still gaining the exceptional visual attraction of a painted wood window, Pella Impervia is a great choice. Backed by one of the most extensive warranties in the business, Pella Impervia replacement windows need 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. Exceptional 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 best 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 a closer look at the Pella Impervia line, come by our showroom in Cape Cod or schedule a free in-home consultation and find the perfect style for your space. Schedule Now!