What You Should Know about Fibrex Window Frames

Fibrex material is the composite wood product that Renewal by Andersen uses to make the window frames of their high-quality, long-lasting replacement windows. Fibrex material has many benefits, not lease of which is that it is one of the most durable and practical window frame materials available in today’s homes!

Fibrex material is also a long-lived product that can last for decades. If you’re considering window replacement in your home, here’s what you should know about Renewal by Andersen’s Fibrex material before purchasing any replacement windows.

What Are Fibrex Material Window Frames?

Fibrex material is a wood composite made from wood pulp and thermoplastic polymer. The wood pulp used in Fibrex material is reclaimed from Andersen’s own manufacturing processes. Fibrex is then finished with a finishing material, whether that’s a finish that looks like wood, or a paint finish.

How Long Do Fibrex Material Window Frames?

Renewal by Andersen windows are protected by a 20-year warranty, but you can expect your windows to last longer. Fibrex material is designed to be highly durable. Whether exposed to moisture, heat, rain, wind and other elements, Fibrex material is designed to last.

Are Patio Doors Made with Fibrex Material?

Fibrex is the material used to build all Renewal by Andersen windows. Due to the extreme demands required of patio doors, including the increased size and weight of the glass and the regular opening and closing of the doors, Renewal by Andersen patio doors are made of wood with a low-maintenance cladding on the exterior and either cladding on the interior or stainable oak, maple, pine on the interior (depending upon door style).

What are the Benefits of Fibrex Material for Window Frames?

Fibrex has many benefits!

  • Maintenance. Unlike natural wood, Fibrex material never needs to be repainted or refinished. It should be cleaned from time to time, but it won’t deteriorate when exposed to moisture, and never needs to be resealed.
  • More durable than materials like wood or vinyl. Fibrex material doesn’t warp with exposure to heat, or deteriorate when exposed to moisture.
  • High value. Fibrex material is high value, similar to wood, but without the maintenance. Installing windows made with Fibrex in your home can improve your home’s value.

How Can I Get Windows Made with Fibrex Installed in Our Home?

Fibrex material is a proprietary product made by Renewal by Andersen. If you’d like windows made with Fibrex installed in your home, then get started by contacting Renewal by Andersen of Long Island.

We can install Fibrex windows of any style, from casements to double hungs, sliders, awnings picture and specialty windows. To find out more about getting Renewal by Andersen windows installed in your home, call 1-877-313-9052 or fill in the short form on this page to make an appointment today.


Download our Free Guide to Long Island Replacement Windows

Long Island Replacement Windows eBook

Learn Everything You Need to Know BEFORE Buying Replacement WindowsClick Here to Download Now!


  • The Difference Between Replacement and New Construction Windows!
  • The Different Kinds of Frame Materials and What That Means to Your Windows’ Performance and Longevity!
  • How the Right Glass Can Save You Money on Your Heating & Cooling Bills!
  • The Critical Role Proper Installation Plays in the Performance, Durability and Warranty of Your New Replacement Windows!
  • What Features and Options are Important to You and What Role They Play in Your Ultimate Satisfaction Today, and for as Long As You Live in Your Home!
Previous Article4 Reasons You'll Love Casement Windows Next ArticleTop 5 Window Replacement Cost Influencers