Fiberglass Windows

Crafted from patented Duracast® fiberglass composite, Pella® Impervia® fiberglass windows are a budget-friendly, low-maintenance alternative to wood replacement windows. They resist warping in the summer and stand up to winter weather, and are carried in an array of color types to complement your taste.

At Pella of Terre Haute, we have learned 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 excellent energy efficiency that are inherent to a fiberglass window. Backed by our industry-leading warranty, Pella Impervia replacement windows demand very little maintenance, resulting in remarkable beauty and performance season after season.

Pella® Impervia® Series

  • Created from Duracast®—the strongest, most durable material you can have in windows
  • Impressive 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 nearby Pella showroom or click below to book a complimentary, in-home consultation and discover the windows that meet the needs of your home.