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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.


"Quality product, quality workmanship. Everyone I interacted with at Renewal by Andersen of SW Missouri had pride in their work from sales to financing to project oversight to installation. It must be a great company to work for because that shows in the professionalism of the staff. Best of all, they want happy customers and go out of their way to make sure that happens. Yes, I love my windows (but I knew I would--it's a great product). Friendly, helpful, easy financing, and yes--they pass costs on to the customer for this, but it meant that I was able to get the windows I wanted and needed for my creaky, lopsided old house. Couldn't be more pleased."

Aug 11, 2023

"The company representative who met with me initially was very direct, told me how the process would go, explained about why Anderson windows are of such good quality and how they stand by their products and their workmanship. My 3 windows arrived when they said they would, & the men who installed them were very professional, polite, & efficient. They showed me how the windows work and left the room as tidy as it was before they did the installation."

Judith Peavey
Aug 14, 2023

"We just had our windows done by Renewal. They kept us informed about the progress of manafucture & installed at the approximate date. Good qualtity & if you didn't know that there were screens on the windows you would think they were missing. Very clear view. Great in this hot weather, the house stays cool."

Jerry C
Aug 22, 2023

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