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BENEFITS OF CHOOSING FIBREX® WINDOWS

The revolutionary Fibrex® material popular in home improvement today is an exclusive product of Renewal by Andersen®. Tried and tested, our windows provide extreme weather protection and require minimal maintenance. We also have an assortment of colors and finishes to beautify your home. Learn this material’s excellent properties here:

Benefits Of Choosing Fibrex Windows

Superior Durability

This innovative material combines the strength of wood and the easy maintenance of vinyl. For a long product lifecycle, we made Fibrex twice as stable and rigid as vinyl. The stronger, thinner frame provides a wider glass area for an unobstructed view. It is also strongly resistant to mold and rot due to a special polymer formulation that surrounds and coats each individual wood fiber.

Our products, including double-hung, picture, and casement windows in St. Charles, MO, all feature Fibrex. We guarantee that it will not rot, fade, flake, and blister, so you can save on repair and maintenance. It will also remain stable against extreme temperature changes.

Higher Energy Efficiency

When it comes to St. Charles, Missouri, energy efficient windows, trust Renewal by Andersen. Our windows have exceptional insulating properties. Along with that, the rate of expansion and contraction of our Fibrex material is low, unlike traditional vinyl. Fibrex windows are more energy-efficient than other materials because they will not crack, bow, or warp in shifting temperatures. This results in the prevention of air and water leakage.

Our st andard models also use High-Performance™ Low-E4® glass. Compared with dual pane glass, it is 56% more energy-efficient in summer and 45% more energy-efficient in winter. It also blocks damaging UV rays to protect your furnishings.

Enhanced Appeal

Fibrex windows can enhance your home’s curb appeal. The color coating requires minimal maintenance, so it will stay vibrant for years. Their slim and attractive profiles lead to better views and more sunlight. All windows are custom-made, so you can get the exact size and shape you want.

In addition, you can choose from 27 different color combinations, including stainable wood interiors, to match your home. Renewal by Andersen® of St. Louis, your trusted professional in windows installation in St. Charles, MO, can also help you with design ideas.

At, Renewal by Andersen of St. Louis, we ensure customer satisfaction. To learn more about our innovative Fibrex material, call us at (314) 332-2364.

Reviews

"This was one of the best experiences I've ever had with a company. I ordered the windows in November and was told they wouldn't be here until July. That kind of delay the new norm so I wasn't a bit upset with the timeline. I was given an early present when they called to say the windows would be in at the beginning of May. We agreed on the week of May 16th to do the installation, there were 30 windows and a sliding door to install. They arrived promptly on their scheduled install date, and got straight to work. By the end of day one, they had all the upstairs windows complete and their work was incredible. Day two came with more of the same, the crew showed up promptly, got straight to work, and when they left they had every window downstairs installed. The third day they again arrived on-time, and got to work installing the door. The door and windows are perfectly installed. The two lads that did the installation did a phenomenal job, and were friendly to boot. I would give them more business if I had any :) The service I received from the company was great. They kept me abreast of anything that was going on with my order. I appreciate my concierge, Christina, she was good at communicating timelines and getting everything scheduled."

Lane Maxwell
Jun 28, 2022

"The two installers were great! They were polite and hard working and they cleaned up all the outside and inside. It was like they were never here. As for the windows, I love them, not only looks great, they are efficient. Now every window in my home has Renewal by Anderson."

Mark Palsgrove
Jun 23, 2022

"We had the pleasure recently of having Andersen replace all of our windows. From the very first interaction with the office personnel through the completion of the project, they have been nothing but professional. From Brian our sales rep to Christina the appointment scheduler, they were a pleasure to interact with. Installers Keith, John, and Evan were fantastic to work with. They went above and beyond to repair an area which was slightly damaged during the removal of a window...caulked and painted it. They took extra precaution to ensure the floors were covered while working inside and cleaned up each day inside and out. We love the look of our new windows and can't wait to enjoy the savings in utilities they'll provide. Thanks so much Renewal by Andersen!!"

Kevin Corrigan
Jun 15, 2022

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