The Pella® Impervia® line combines style with endurance in fiberglass windows and patio doors that, as the name implies, are impervious to nearly all types of weather.
Impervia’s durability comes from Duracast®, our special fiberglass composite. It’s one of the toughest and most well-built materials obtainable for fiberglass windows and patio doors1. Duracast resists conditions from extreme heat to subzero cold, making Pella Impervia windows and exterior doors exceptional for all seasons.
The impressive insulating properties of our fiberglass replacement windows and patio doors improve your home’s coziness and help reduce energy use. Optional foam-insulating frames could be added to these ENERGY STAR®-certified windows and patio doors.
Pella Impervia windows and sliding patio doors are delivered prefinished with a factory powder-coat finish that stays looking great for a long time—inside and out—with little maintenance. With many colors to select, you’ll find windows and patio doors to complement your home’s look, inside and out. Our environmentally friendly paint process practically removes toxic chemicals, helping the air inside your house stay healthy.
Pella Impervia features quality that you can rely on and beauty that stands out. And to top things off, they are supported by our limited warranty—one of the best in the industry.2