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

At Pella of Charlotte, we have discovered that Pella Impervia windows are the right choice for homeowners who want the impressive look of a painted wood window with the superior dependability and excellent energy efficiency that are a part of a fiberglass window. Supported by our industry-leading warranty, Pella Impervia replacement windows need very little maintenance, ensuring exceptional beauty and performance for years to come.

Pella® Impervia® Series

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

Take a closer look at fiberglass windows at your closest Pella showroom or click below to book a complimentary, in-home consultation and find the windows that are right for your home.



Live Chat
I can help with your window or door replacement questions.