The Pella® Impervia® line couples style with endurance in fiberglass windows and patio doors that, as the name infers, are impervious to almost all types of weather.
Impervia’s strength comes from Duracast®, our unique fiberglass composite. It’s one of the toughest and most reliable materials available for fiberglass windows and patio doors1. Duracast stands up to conditions from extreme heat to subzero cold, making Pella Impervia windows and exterior doors excellent for all climates.
The outstanding insulating qualities of our fiberglass replacement windows and patio doors improve your home’s coziness and help conserve energy. Optional foam-insulating frames can 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 years—inside and out—with little care. With many colors to choose from, you’ll find windows and patio doors to reflect your home’s design, inside and out. Our environmentally friendly paint process virtually gets rid of toxic chemicals, helping the air inside your house stay chemical-free.
Pella Impervia offers quality that you can rely on and beauty that stands out. And to top things off, they are secured by our limited warranty—one of the best in the industry.2