Fiberglass Windows

Created from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a cost-friendly, low-maintenance alternative to wood replacement windows. They resist warping in the heat and stand up to winter weather, and are offered in a selection of color options to complement your home.

At Pella of St. Paul, we have found that Pella Impervia windows are a fitting choice for homeowners who want the warm look of a painted wood window with the superior durability and notable energy efficiency that are a part of a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows need little to no maintenance, offering exceptional beauty and performance season after season.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can get in windows
  • Excellent performance
  • The stunning look of a painted wood window
  • ENERGY STAR®-rated options save energy
Available Styles
  • Awning
  • Casement
  • Double-Hung
  • Single-Hung
  • Sliding
  • Basement
  • Bay and Bow

Look into fiberglass windows at your closest Pella showroom or click below to schedule a no-cost, in-home consultation and discover the windows that meet the needs of your home.



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