Fiberglass Windows

Made from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a cost-effective, low-maintenance alternative to wood replacement windows. They prevent warping in the summer and shield your home from winter weather, and are offered in a variety of color types to match your taste.

At Pella of Long Island, we have found that Pella Impervia windows are the right choice for homeowners who want the impressive look of a painted wood window with the top-notch reliability and excellent energy efficiency that are inherent to a fiberglass window. Supported by our industry-leading warranty, Pella Impervia replacement windows demand very little maintenance, offering striking beauty and performance season after season.

Pella® Impervia® Series

  • Constructed from Duracast®—the strongest, most durable material you can get in windows
  • Impressive performance
  • The quality 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

Take a closer look at fiberglass windows at your nearby Pella showroom or click below to schedule a free, in-home consultation and discover the windows that best fit your budget.

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