Everything You Need to Know about Fibrex® Windows

Everything You Need to Know about Fibrex® Windows

March 13, 2024

When it comes to choosing windows for your home, the materials matter. In a market filled with options, Fibrex® windows by Renewal by Andersen are a superior choice for homeowners who value durability, energy efficiency and beauty. But what exactly is Fibrex®, and why should it be your go-to option for window replacement? Let’s explore the ins and outs of this innovative material and how it can transform your home. 

What is Fibrex®?

Renewal by Andersen uniquely crafts Fibrex®, a revolutionary composite material. It combines wood’s strength and stability with vinyl’s low-maintenance features, creating a superior window frame material. This blend is made of 40% recycled wood fiber and 60% thermoplastic polymer, ensuring that each window is strong, durable, and environmentally friendly. 

Unmatched Durability 

One of the standout features of Fibrex®  material is its exceptional durability. Unlike pure wood or vinyl windows, Fibrex®  windows resist warping, fading and cracking under extreme weather conditions. This resilience is particularly beneficial in climates that experience harsh windows and hot summers, making Fibrex®  windows a perfect fit for any region. 

Superior Energy Efficiency 

Fibrex®  material excels in energy efficiency. Its thermal insulating properties are superior to traditional materials, helping to keep your home warmer in the winter and cooler in the summer. This can lead to significant savings on your energy bills over time. Additionally, Renewal by Andersen’s Fibrex®  windows are designed to work seamlessly with High-Performance™ Low-E4® glass, further enhancing their energy-saving capabilities.

Maintenance-Free Living

One of the perks of Fibrex®  windows is that they are low-maintenance in nature. The color is infused throughout the materials, eliminating the need for painting. Unlike wood, which requires regular upkeep to prevent decay, Fibrex®  windows maintain their appearance year after year with minimal effort. Simply wipe them down with a damp cloth to keep them looking new. 

Aesthetic Flexibility 

With Fibrex®  windows, compromising on style is a thing of the past. The material’s strength allows for slimmer frames and more glass, maximizing your view and allowing more natural light into your home. Fibrex®  windows are also available in various colors and finishes, ensuring you can find the perfect match for your home’s aesthetic. 

Eco-Friendly Choice

Renewal by Andersen is committed to sustainability, and Fibrex®  material reflects this commitment. Using recycled wood fiber reduces waste, and the manufacturing process is designed to minimize environmental impact. Choosing Fibrex®  is a step toward a greener, more sustainable home. 

The Renewal by Andersen Advantage

When choosing Fibrex®  windows, you’re not just getting a superior product but also benefiting from exceptional service. Our team of experts ensures a seamless experience from consultation to installation, leaving you with beautiful, energy-efficient windows that will last for years. 


Fibrex®  windows offer a combination of durability, energy efficiency, beauty and sustainability that is hard to beat. Whether you’re renovating an old house or building a new one, choosing Fibrerx material for your windows is a wise investment in the comfort and value of your home. Connect with Renewal by Andersen today to explore how Fibrex®  windows can enhance your living space. 

Hear From Our Customers

Jason and Brett did an awesome job installing our doors. We had separate installers a month earlier for our windows who also did a fantastic job. They were all very professional and cleaned up almost better than the area looked before the installation! Since these were both jobs that took more than one day the installers were great at keeping us informed on the status of where the project was at along the way.

This was a great crew to work with. Both the original install manager we worked with (Jay) and the install team (Daniel, Mason, Tony, Ethan, and Jose). Everyone was very professional and knowledgable. They answered all my questions and the end result on the house is great. In 3 days they replaced an old bay window with a new bay window, a set of french doors on the patio with a sliding patio door, and our old front door with a new front door and storm door.

I cant express how happy we are with choosing Andersen for our window installation. Our sales representative was knowledgeable with product and answered any questions we had without hesitation. I did also fill out a survey that was sent in an email, but sadly I failed to personally name the two gentlemen that performed the actual installation. Barrett and Francisco were our guys, and let me tell you, they were outstanding!!! They did Excellent work and were professional as well as efficient and made this a smooth, none evasive process for us. I strongly recommend this company and these installers to anyone in need of windows!!! My husband and I could not be more pleased we chose Andersen for replacing our windows!!!

Claim These Savings
Custom Built In USA
Lead Safe

Since its founding in 1977, the Alliance to Save Energy has been a leader in energy efficiency policy and advocacy. Over the years, the Alliance’s programs and priorities have evolved as U.S. energy efficiency policy has grown.