The Pella® Impervia® line combines style with strength in fiberglass windows and patio doors that, as the name suggests, are impervious to practically all types of weather.
Impervia’s toughness comes from Duracast®, our special fiberglass composite. It’s one of the sturdiest and most well-built materials available for fiberglass windows and patio doors1. Duracast defends against temperatures from extreme heat to subzero cold, making Pella Impervia windows and exterior doors great for all regions.
The impressive insulating features of our fiberglass replacement windows and patio doors enhance 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 come prefinished with a factory powder-coat finish that maintains its looks for a long time—inside and out—with little care. With many colors to explore, you’ll find windows and patio doors to complement your home’s look, inside and out. Our environmentally friendly paint process practically gets rid of toxic chemicals, helping the air inside your home stay chemical-free.
Pella Impervia features quality that stands up and beauty that stands out. Plus, to top things off, they are secured by our limited warranty—one of the most thorough in the industry.2