FIBERGLASS WINDOWS by Pella Windows and Doors Produced from incredibly tough fiberglass, Pella Impervia® offers high-performing, low-maintenance fiberglass replacement windows that provide the quality appearance of painted wood. The Impervia line is made from Duracast, a patented fiberglass composite that battles warping in the summer months and doesn’t become brittle in the winter. If you’re in Ketchum and searching for top-of-the-line durability and exceptional energy efficiency, while keeping the outstanding visual appeal of a painted wood window, look no further than Pella Impervia. Backed by one of the most extensive warranties in the market, Pella Impervia replacement windows involve little to no maintenance, ensuring that your windows will look amazing 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 a variety of color options to complement your room. We allow you the flexibility to pick the best 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 get a closer look at the Pella Impervia line, come by our showroom in Ketchum or schedule a free in-home consultation and find the perfect fit for your space. Schedule Now!