The Pella® Impervia® line couples style with strength in fiberglass windows and patio doors that, as the name infers, are impervious to nearly all types of weather.
Impervia’s durability comes from Duracast®, our special fiberglass composite. It’s one of the strongest and most reliable materials available for fiberglass windows and patio doors1. Duracast stands up to temperatures from intense heat to frigid cold, making Pella Impervia windows and exterior doors excellent for all climates.
The outstanding insulating qualities of our fiberglass replacement windows and patio doors boost comfort and help reduce energy use. 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 a long time—inside and out—with little upkeep. With an array of colors to choose from, you'll find windows and patio doors to complement your clients' styles. Our environmentally friendly paint process practically eliminates toxic chemicals, helping indoor air stay healthy.
Pella Impervia offers quality that you can rely on and beauty that stands out. Also, to top things off, they are backed by our limited warranty—one of the strongest in the industry.2