Fiberglass Windows

Made from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a budget-friendly, low-maintenance alternative to wood replacement windows. They resist warping in the summer and shield your home from winter weather, and are available in a selection of color options to match your taste.

At Pella of Portsmouth, we have found that Pella Impervia windows are the right choice for homeowners who want the stunning look of a painted wood window with the top-of-the-line dependability and notable energy efficiency that are a part of a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows require almost no maintenance, offering striking beauty and performance year after year.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can get in windows
  • Exceptional performance
  • The high-end 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 nearby Pella showroom or click below to plan a complimentary, in-home consultation and discover the windows that are right for your budget.



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