FIBERGLASS WINDOWS by Pella Windows and Doors Produced from extremely tough fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that deliver the quality finish that looks like 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 Raleigh and in the market for superior durability and exceptional energy efficiency, while keeping 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 market, Pella Impervia replacement windows require little to no maintenance, ensuring that your windows will look outstanding year after year. 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 eliminates VOCs, keeping the air in your home healthier. If you want to get a closer look at the Pella Impervia line, stop by our showroom in Raleigh or schedule a free in-home consultation and find the perfect windows for your room. Schedule Now!