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Answering Frequently Asked Questions About Fibrex® Windows

High-quality windows will elevate the beauty of your home’s interior and exterior. They will not only brighten up your living spaces, but also help you save on energy costs. At Renewal by Andersen® of Southwest Missouri, we only offer top-grade products, such as windows with Fibrex® frame material.

Fibrex window

Discover the answers to some of the most commonly asked questions about Fibrex replacement windows in this post.

What Is Fibrex®

Fibrex is a unique material that features the warmth and durability of wood with the low-maintenance features of vinyl. This material is made from a combination of wood fiber and thermoplastic polymer. It makes a great window material for residential windows as it withstands bowing, cracking and rot.

Why Should You Go for Fibrex?

Home window replacement experts recommend Fibrex due to the hefty benefits it offers. When combined with Renewal by Andersen’s High-Performance™ Low-E4® glass, Fibrex offers superior energy efficiency and insulating properties. This material is so strong that it can be made into narrower frames and in virtually all shapes and sizes. It can be manufactured into all types of windows, unlike fiberglass that only allows for straight lines. Because of their durability, Fibrex windows do not require as much maintenance, saving you on upkeep costs.

Is Fibrex Protected By Warranties?

The warranty that backs a product says a lot about its reliability, strength and longevity. All Renewal by Andersen windows is backed with one of the most comprehensive warranties in the industry. Our windows come with a 20/2/10 Limited Warranty. It includes a 20-year limited warranty for Fibrex® and glass, a 10-year limited warranty for the frame, sash, and locking mechanism, and a 2-year limited warranty on installation.

Choose an experienced window replacement service provider like Renewal by Andersen of Southwest Missouri for your next project. We offer a wide range of window styles in various colors and finishes to complement every home. Call us at (417) 268-9301, or fill out our contact form to schedule a free consultation.


"I've been impressed with each step so far. Josh my salesman, Gerry my project manager & the installation crew have all been great people to work with. Also, the many different office workers who have reached out to let me know how things were progressing are greatly appreciated. Thank you to all team members!"

J Nick
Nov 15, 2022

"They did a super job, matched my woodwork stain perfectly, cleaned up well after their work was done and were polite and professional."

alana mccleary
Nov 15, 2022

"From initial review and purchase to installation, this team provided outstanding service. We were informed about the project status from start to finish. Everything was clear to us. We were very please the 6 windows were ready and installed earlier than originally planned. We'll work with them again on our next window replacement project."

Jeffery Brown
Nov 17, 2022

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