Fiberglass Windows

Created from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a cost-friendly, low-maintenance alternative to wood replacement windows. They prevent warping in the heat and defend against winter weather, and are carried in a selection of color choices to match your home’s design.

At Pella of Birmingham, we have discovered that Pella Impervia windows are a fitting choice for homeowners who want the impressive look of a painted wood window with the top-notch dependability and excellent energy efficiency that are a part of a fiberglass window. Supported by our industry-leading warranty, Pella Impervia replacement windows require very little maintenance, resulting in remarkable beauty and performance year after year.

Pella® Impervia® Series

  • Made from Duracast®—the strongest, most durable material available in windows
  • Impressive performance
  • The quality 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

Discover fiberglass windows at your closest Pella showroom or click below to plan a complimentary, in-home consultation and uncover the windows that are right for your home.



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