Fiberglass Windows

Made from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a cost-friendly, low-maintenance alternative to wood replacement windows. They resist warping in the hotter days and stand up to winter weather, and are available in a selection of color types to complement your home.

At Pella of Newport, we have learned that Pella Impervia windows are a fitting choice for homeowners who want the warm look of a painted wood window with the top-notch dependability and notable energy efficiency that come with a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows demand very little maintenance, offering striking beauty and performance year after year.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can have in windows
  • Exceptional performance
  • The high-end 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 local Pella showroom or click below to plan a free, in-home consultation and find the windows that are right for your style.



Save an additional 5% during our Black Friday Sale
Live Chat
I can help with your window or door replacement questions.