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 summer and shield your home from winter weather, and are available in an array of color choices to match your home’s design.

At Pella of Kingston, we have learned that Pella Impervia windows are the right choice for homeowners who want the stunning look of a painted wood window with the top-notch reliability and notable energy efficiency that come with a fiberglass window. Supported by our industry-leading warranty, Pella Impervia replacement windows need little to no maintenance, resulting in exceptional beauty and performance season after season.

Pella® Impervia® Series

  • Constructed from Duracast®—the strongest, most durable material you can have 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

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



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