The Pella® Impervia® line couples style with endurance in fiberglass windows and patio doors that, as the name implies, are impervious to almost all types of weather.
Impervia’s toughness 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 extreme heat to subzero cold, making Pella Impervia windows and exterior doors excellent for all climates.
The impressive insulating qualities of our fiberglass replacement windows and patio doors boost your home’s comfort and help reduce energy use. Optional foam-insulating frames could be included 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 a long time—inside and out—with little maintenance. With many colors to explore, you’ll find windows and patio doors to reflect your home’s look, inside and out. Our environmentally friendly paint process practically removes toxic chemicals, helping the air inside your home stay chemical-free.
Pella Impervia features quality that you can count on and beauty that stands out. Plus, to top things off, they are supported by our limited warranty—one of the strongest in the industry.2