The Pella® Impervia® line blends style with strength in fiberglass windows and patio doors that, as the name suggests, are impervious to nearly all types of weather.
Impervia’s durability comes from Duracast®, our unique fiberglass composite. It’s one of the toughest and most durable materials available for fiberglass windows and patio doors1. Duracast stands up to temperatures from severe heat to subzero cold, making Pella Impervia windows and exterior doors excellent for all regions.
The superior insulating properties of our fiberglass replacement windows and patio doors improve your home’s livability 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 an array of colors to choose from, 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 room stay healthy.
Pella Impervia brings quality that you can rely on and beauty that stands out. Also, to top things off, they are supported by our limited warranty—one of the most thorough in the industry.2