The Pella® Impervia® line blends style with endurance in fiberglass windows and patio doors that, as the name suggests, are impervious to nearly all types of weather.
Impervia’s toughness comes from Duracast®, our unique fiberglass composite. It’s one of the toughest and most well-built materials in the market for fiberglass windows and patio doors1. Duracast stands up to temperatures from severe heat to subzero cold, making Pella Impervia windows and exterior doors exceptional for all seasons.
The impressive insulating qualities of our fiberglass replacement windows and patio doors boost your home’s coziness and help reduce energy use. Optional foam-insulating frames may be included on these ENERGY STAR®-certified windows and patio doors.
Pella Impervia windows and sliding patio doors come prefinished with a factory powder-coat finish that stays vibrant for years—inside and out—with little care. With a wide selection of colors to explore, you’ll find windows and patio doors to complement your home’s style, inside and out. Our environmentally friendly paint process practically eliminates toxic chemicals, helping the air inside your house stay healthy.
Pella Impervia features quality that you can count on and beauty that stands out. And to top things off, they are backed by our limited warranty—one of the most thorough in the industry.2