Fiberglass Windows

Made 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 carried in a variety of color options to accompany your taste.

At Pella of Wilmington, we have found that Pella Impervia windows are a fitting choice for homeowners who want the stunning look of a painted wood window with the top-of-the-line durability and excellent energy efficiency that are a part of a fiberglass window. Supported by our industry-leading warranty, Pella Impervia replacement windows demand little to no maintenance, ensuring exceptional beauty and performance season after season.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can get in windows
  • Impressive performance
  • The high-end look of a painted wood window
  • ENERGY STAR®-rated options help conserve energy
Available Styles
  • Awning
  • Casement
  • Double-Hung
  • Single-Hung
  • Sliding
  • Basement
  • Bay and Bow
Beautiful custom home features Pella fiberglass windows

Take a closer look at fiberglass windows at your closest Pella showroom or click below to schedule a complimentary, in-home consultation and discover the windows that meet the needs of your home.



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