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Fiberglass Windows

Created 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 offered in an array of color options to complement your taste.

At Pella of Lafayette, 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 dependability and notable energy efficiency that are a part of a fiberglass window. Supported by our industry-leading warranty, Pella Impervia replacement windows need almost no maintenance, ensuring exceptional beauty and performance season after season.

Pella® Impervia® Series

  • Made from Duracast®—the strongest, most durable material you can get in windows
  • Excellent 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
Beautiful custom home features Pella fiberglass windows

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