FIBERGLASS WINDOWS by Pella Windows and Doors Made from extremely tough fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that have 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 Concord and in the market for the best durability and energy efficiency, while maintaining the outstanding visual allure of a painted wood window, Pella Impervia is a great choice. Covered by one of the top warranties in the business, Pella Impervia replacement windows involve little to no maintenance, ensuring that your windows will look outstanding for years to come. Pella Impervia® Pella Impervia® Incredibly strong fiberglass Duracast®. An extremely durable material available in windows and doors. Excellent performance. Excellent energy efficiency. FIBERGLASS WINDOW COLOR OPTIONS Pella Impervia fiberglass windows offer countless color options to complement your space. We allow you the flexibility to pick the perfect windows at a budget you can afford. Pella utilizes an environmentally friendly painting process that greatly reduces VOCs, keeping the air in your home healthier. If you want to take a closer look at the Pella Impervia line, stop by our showroom in Concord or schedule a free in-home consultation and find the perfect windows for your room. Schedule Now!