The Pella® Impervia® line combines style with strength in fiberglass windows and patio doors that, as the name suggests, are impervious to practically all types of weather.
Impervia’s strength 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 defends against conditions from extreme heat to subzero cold, making Pella Impervia windows and exterior doors excellent for all climates.
The superior insulating qualities of our fiberglass replacement windows and patio doors improve your home’s comfort and help conserve energy. Optional foam-insulating frames can 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 vibrant for the long haul—inside and out—with little maintenance. With a wide selection of colors to choose from, you’ll find windows and patio doors to match your home’s look, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your room stay clean.
Pella Impervia features quality that stands up and beauty that stands out. Also, to top things off, they are supported by our limited warranty—one of the strongest in the industry.2