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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.


"Renewal by Andersen windows experience has been great. From my initial call to Andersen on inquiry about their windows and doors through the order and installation process everyone I’ve dealt with has been great. Great process, great product and most of all great people to work with. Thanks."

Kevin Sweetin
Feb 28, 2024

"I just bought my first house. My patio sliding door was rotten. So, I needed it to replace it. Renewal by Anderson of Southern Missouri listened to what I wanted and delivered it. They did a fantastic job of installing and cleaning up afterwards. They did it even in freezing rain that day I was scheduled to have it replaced. They even had a follow-up to check things out and do the touch ups. I'm amazed at there work. Great job Renewal by Anderson."

DKay Mikel
Feb 9, 2024

"On Feb 1,2024 my husband and I selected Renewel by Andersen for windows for our entire house. It made our house more beautiful with the picture windows. Made the outside more attractive, and on the inside. We did 14 windows. We had 4 men come to do the job in 1 day And they were very friendly, efficient,fast and cleaned up inside and outside perfectly. And most importantly we noticed the heating furnace runs less,therefore saving us money on our gas bill. We live in SW Missouri. We recommend anyone who wants to replace windows in their home to pick Renewal by Andersen. Sincerely, Darius and Nancy Durman"

Nancy Durman
Feb 7, 2024

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