The Pella® Impervia® line couples style with strength in fiberglass windows and patio doors that, as the name implies, 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 durable materials in the market for fiberglass windows and patio doors1. Duracast stands up to temperatures from severe heat to frigid cold, making Pella Impervia windows and exterior doors exceptional for all regions.
The outstanding insulating features of our fiberglass replacement windows and patio doors boost your home’s coziness and help save on energy. Optional foam-insulating frames may be added to these ENERGY STAR®-certified windows and patio doors.
Pella Impervia windows and sliding patio doors arrive prefinished with a factory powder-coat finish that maintains its looks for a long time—inside and out—with little upkeep. With a wide selection of colors to explore, you’ll find windows and patio doors to match your home’s look, inside and out. Our environmentally friendly paint process essentially removes toxic chemicals, helping the air inside your home stay healthy.
Pella Impervia offers quality that you can count on and beauty that stands out. Plus, to top things off, they are backed by our limited warranty—one of the most thorough in the industry.2