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How Well Does Fibrex® Age?

Renewal by Andersen® revolutionized the window replacement industry with an innovative material called Fibrex®. Used in various Andersen® window products, Fibrex is a composite material that combines the low-maintenance features of vinyl with the strength and durability of wood.

Read about the results of a long-term durability study done on 10 Andersen windows here.

What You Should Know About Fibrex®

Since Fibrex material doesn’t contract or expand with changes in temperature, it is considered to be long lasting and two times stronger than vinyl.

As part of our commitment to quality, we ensure that our windows go through rigorous tests all the time. But to really prove how well our replacement windows hold up after several years, Renewal by Andersen conducted a long-term durability test on 10 of our windows.

These windows, which were all in good condition, were removed from a customer’s home in Minnesota. Since these windows have been in use for 20 years, you can bet that they have seen and withstood brutal Minnesota winters and humid summers.

To see how the windows were able to resist various elements, tests were done on site, and more extensive testing was performed in the lab. The result: the windows were still strong and easy to open, and they showed no cracking, chipping or peeling even after 20 years of use.

About Renewal by Andersen®

Renewal by Andersen is the full-service window replacement division of Andersen Corporation. As part of the huge Renewal by Andersen family, Renewal by Andersen of Southwest Missouri takes inspiration from our parent company’s tradition of quality, innovation and craftsmanship.

We offer free in-home consultations to ensure our customers’ needs are heard and understood. We also provide professional installation services to guarantee the optimal performance of our window products

Renewal by Andersen of Southwest Missouri is proud to have a team of qualified experts that deliver superb results. Call us at (417) 351-2801 or fill out our contact form to request a free estimate.


"Great workmanship on windows installation is done very professionally by excellent crew. Installed in a very timely manner. Excellent company to deal with."

Roy D
Feb 14, 2023

"The Springfield team was wonderful to work with , professional , friendly and knowledgeable. They all seem to take great pride in their work. These new windows are fantastic, they look great , operate so easy and the energy efficiency was noticeable from the very first day . Thank you Renewal by Andersen for transforming our home and our lives."

Pam S
Feb 15, 2023

"After years of watching the wind move my drapes and hours of difficult cleaning, I decided to get new windows. I went with Renewal by Andersen because of the great reviews and quality. From Brent who did the consult, Gideon who did the measuring, to Jason, Josh, and I apologize I can't remember the third installers name, this is the most professional company I've ever worked with. I own a 1994 double wide mobile home, so everything in this place is hard to work with. I had a bay window, 6 double hung, 2 awning, and a front door replaced.. They said it would take 2 days and they were done on time! I did have second thoughts about doing this mainly because of the cost, but once it was done, I was very happy I did this."

Gary S
Feb 18, 2023

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