Why Choose Fiberglass Windows?

Pella offers high performing, low-maintenance fiberglass windows that have the quality look of painted wood. Our durable, patented fiberglass composite can withstand extreme heat and subzero cold. And, they are highly energy efficient. Explore each of our fiberglass window styles below.

Impervia Sliding Window.jpg

Pella® Impervia®

Incredibly strong fiberglass

  • Duracast®. The most durable material available in windows.16
  • Excellent performance.
  • Exceptional energy efficiency.

Choose your window style

Explore Pella® Impervia®

$1,000 off

qualifying Pella projects


0% APR

for 48 months

Sale ends June 29. See Details

Your Zip Code

Get a Free Quote

Inspired Design. Exceptional Detail.

Get inspiration and upcoming local offers...

Please enter a valid email address and zip code. Thank you!
Success! You are now subscribed to Pella offers and inspiration.