The Pella® Impervia® line combines 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 sturdiest and most durable materials in the market for fiberglass windows and patio doors1. Duracast defends against conditions 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 may be included on these ENERGY STAR®-certified windows and patio doors.
Pella Impervia windows and sliding patio doors arrive prefinished with a factory powder-coat finish that maintains its looks for the long haul—inside and out—with little upkeep. With an array of colors to choose from, you’ll find windows and patio doors to match your home’s style, inside and out. Our environmentally friendly paint process virtually gets rid of toxic chemicals, helping the air inside your house stay healthy.
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 best in the industry.2