FIBERGLASS WINDOWS by Pella Windows and Doors Produced from amazingly strong 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 resists warping in the summer months and doesn’t become brittle during the winter. If you’re in South Burlington and looking for superior durability and high energy efficiency, while maintaining the exceptional visual attraction of a painted wood window, Pella Impervia is a great choice. Backed by one of the best warranties in the business, 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 numerous color options to complement your room. We allow you the flexibility to pick the perfect 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, drop by our showroom in South Burlington or schedule a free in-home consultation and find the perfect fit for your room. Schedule Now!