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The Fibrex Difference

Residential Fibrex Window

When Andersen Windows launched the Renewal by Andersen® division, it introduced a better process to the window replacement industry – and a groundbreaking new material to make the frames. This patented Fibrex® composite material is a better framing material for several reasons.

  • Strength. Fibrex combines wood fiber with the low maintenance of premium vinyl, resulting in remarkable strength. Due to this strength, Fibrex® frames can be manufactured with narrower lines and more glass area for better views and lighting.
  • Stability. As a composite material, Fibrex® contracts and expands very little, even in extreme temperatures. For this reason, Fibrex® material can be produced in dark exterior colors than vinyl can’t.
  • Colors. Fibrex® never needs to be painted, comes in more than 47 color combinations and Warranty.
    • The extra strength and durability of Fibrex® will not rot, warp, crack, peel or split which allows Renewal by Andersen to offer one of the best warranties in the window industry.

When compared to wood, fiberglass and aluminum, Fibrex® performs better on every level. Let us show you the difference.


Schedule Your FREE In-Home Consultation for Allentown Replacement Windows

Find out why Renewal by Andersen windows stand apart from all others. Call Renewal by Andersen of Northeast PA at (610) 355-4055 for more information on our Fibrex® windows.

Fibrex Brochure   Fibrex Material


"We were pleased with the process from the sales representative through installation. Our windows are beautiful, and we are very pleased we made the decision to replace our windows with Renewal by Andersen."

Scott & Jackie | Austin, VA
November 16

"High quality windows and professional installation."

Edward C.
January 18, 2019

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