Pella® Impervia® Series Windows and Doors

The Pella® Impervia® line blends style with strength in fiberglass windows and patio doors that, as the name infers, are impervious to almost all types of weather.

Impervia’s strength comes from Duracast®, our unique fiberglass composite. It’s one of the toughest and most well-built materials available for fiberglass windows and patio doors1. Duracast resists conditions from intense heat to frigid cold, making Pella Impervia windows and exterior doors excellent for all climates.

The impressive insulating features of our fiberglass replacement windows and patio doors enhance your home’s comfort and help save on energy. Optional foam-insulating frames can be installed 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 stays looking great for a long time—inside and out—with little care. With many colors to select, you’ll find windows and patio doors to match your home’s design, inside and out. Our environmentally friendly paint process virtually removes toxic chemicals, helping the air inside your room stay chemical-free.

Pella Impervia offers quality that you can count on 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

Impervia Series
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Click below to plan a complimentary, in-home consultation or stop by your nearby Pella showroom to look at these windows and patio doors in detail.





1In testing performed in accordance with ASTM testing standards. Duracast® fiberglass composite from Pella has displayed superior performance in strength, ability to withstand heat and cold, and resistance to dents and scratches.
2Based on comparing written limited warranties of leading national wood window and wood patio door brands. See Pella written Limited Warranty for details, including exceptions and limitations, at pella.com/warranty, or contact Pella® Customer Service at 877-473-5527.