The Pella® Impervia® line combines style with endurance in fiberglass windows and patio doors that, as the name implies, are impervious to almost all types of weather.
Impervia’s strength comes from Duracast®, our special fiberglass composite. It’s one of the toughest and most well-built materials available for fiberglass windows and patio doors1. Duracast stands up to weather from intense heat to freezing cold, making Pella Impervia windows and exterior doors excellent for all climates.
The impressive insulating qualities of our fiberglass replacement windows and patio doors improve your home’s 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 come prefinished with a factory powder-coat finish that maintains its looks for a long time—inside and out—with little care. With an array of 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 removes toxic chemicals, helping the air inside your room stay healthy.
Pella Impervia offers quality that stands up and beauty that stands out. Plus, to top things off, they are supported by our limited warranty—one of the best in the industry.2