The Pella® Impervia® line couples style with durability in fiberglass windows and patio doors that, as the name implies, are impervious to practically all types of weather.
Impervia’s toughness comes from Duracast®, our unique fiberglass composite. It’s one of the sturdiest and most well-built materials available for fiberglass windows and patio doors1. Duracast resists temperatures from severe heat to frigid cold, making Pella Impervia windows and exterior doors excellent for all climates.
The superior insulating properties of our fiberglass replacement windows and patio doors improve your home’s comfort and help reduce energy use. Optional foam-insulating frames can be installed 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 maintenance. With many colors to explore, you’ll find windows and patio doors to complement your home’s design, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your house stay healthy.
Pella Impervia offers quality that you can count on and beauty that stands out. Also, to top things off, they are secured by our limited warranty—one of the most thorough in the industry.2