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Pella® Impervia® Series Windows and Doors

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.

Pella’s proprietary fiberglass is the strongest material for windows, engineered for lasting durability.1 Our exclusive fiberglass will never rot or corrode, and it resists dents, bends and breaks. Duracast defends against conditions from severe heat to frigid cold, making Pella Impervia windows and exterior doors exceptional for all climates.

The impressive insulating properties of our fiberglass replacement windows and patio doors boost coziness and help save on energy. Optional foam-insulating frames can be added to 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 the long haul—inside and out—with little care. With a wide selection of colors to select, you'll find windows and patio doors to complement your clients' tastes. Our environmentally friendly paint process virtually eliminates toxic chemicals, helping indoor air stay healthy.

Pella Impervia features quality that stands up and beauty that stands out. Plus, to top things off, they are backed by our limited warranty—one of the most thorough in the industry.2

Impervia Series dining room windows
Pella® Impervia® Series Catalog

Available Window Styles

Available Door Styles

Get a quote for your project now or visit our showroom to look at these windows and patio doors in detail.





1Pella’s proprietary fiberglass material has displayed superior strength over wood, vinyl, aluminum, wood/plastic composites, and other fiberglass materials used by leading national brands in tensile and 3-point bend tests performed in accordance with ASTM D638 and D790 testing standards.
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.