Fiberglass Windows

Crafted from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a budget-friendly, low-maintenance alternative to wood replacement windows. They protect from warping in the hotter days and stand up to winter weather, and are available in a variety of color options to match your home’s design.

At Pella of Grand Rapids, we have found that Pella Impervia windows are a great choice for homeowners who want the warm look of a painted wood window with the superior durability and excellent energy efficiency that come with a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows demand little to no maintenance, offering remarkable beauty and performance season after season.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material available 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

Discover fiberglass windows at your local Pella showroom or click below to plan a complimentary, in-home consultation and find the windows that meet the needs of your budget.



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