Fibrex® - Only The
Best For Your Windows

The strength of wood with the low maintenance of vinyl

Ready for a window that gives you the best of both worlds, between vinyl and wood?  Andersen Corporation’s tradition of innovation led to the invention and patenting of Fibrex® material. Now, after more than 30 years of development, Fibrex® material is in a class of its own. It looks better, lasts longer, and performs beautifully!

With the strength of wood and the low maintenance of vinyl, Fibrex® material is an energy efficient insulator and offers design capabilities unlike any other window framing material. We provide Fibrex® material in 27 custom colors, including dark tones that vinyl can’t offer. Since you’ll never have to worry about scraping and painting, Fibrex® material will give you additional peace of mind. Even better, Fibrex® material is proven not to flake, rust, blister, peel, crack, pit, or corrode.*

Along with color, design, and lifestyle benefits, the environmental benefits of Fibrex® are unmatched. Andersen Corporation has earned many environmental certifications for leadership in reclaiming and reusing materials and preventing harmful off-gassing in indoor environments.

What if the products you use every day could make the planet healthier? And what if they could save you money in the process? Andersen Corporation’s heritage includes a long-standing commitment to energy efficient products and environmental stewardship. Andersen, including Renewal by Andersen, recently earned ENERGY STAR®’s Partner of the Year award.

Why is Fibrex® Better Than Vinyl?

How did we develop a product that combines the best of both worlds for your replacement windows? Fibrex® material is 40% wood fiber and 60% thermoplastic polymer. It has twice the strength of vinyl windows, making it resistant to damage from any sort of climate.** The weathertight seals stay firm and closed, keeping your home at a comfortable temperature. It does not rot, decay, peel, or flake, which keeps it low maintenance. Since the color is part of the product and not painted on, it stays vibrant and beautiful for years to come.

Fibrex® material is a better window framing material for several reasons:

  • Because it is a composite using real wood fiber, it is very strong. This means narrower frames which, in turn, means more glass area. Vinyl window frames are often thicker, reducing glass area.
  • As a low-maintenance composite, it expands and contracts very little, even with extreme temperature swings. That’s why we’re able to offer dark exterior colors, which will cause vinyl windows to warp in the heat.
  • Due to this material difference, Renewal by Andersen can offer one of the best window limited warranties in the industry.***
Richmond Window is among the leading full-service window replacement companies

“I highly recommend Richmond Window for your next window and door project. We are extremely pleased with our Renewal by Andersen windows which were installed flawlessly with every detail addressed. From the awesome sales experience to the exceptional installation, everything was done professionally and skillfully. Richmond Window was not satisfied until we were satisfied. I can’t say enough about the great job they did.”

Scott J.

“I highly recommend Richmond Window Corp. Best of the Best is all I can say, the product (for us 7 windows and 3 sliding doors) is superior to anything we have had in the past. The service provided, was unbelievable, professional, always on time and done with perfection. The salesperson, the men doing the measuring, the installers, I can only say – If you want the best, call these people and you will get the best from the beginning to end. From very satisfied customers in Varina, Henrico County.”

Sue & Heath M.

“We just had three 23-year-old failed sliders replaced. We have used Renewal by Andersen for a previous home and found the product superior. The Install Team Customer Service was exemplary. Everyone at Renewal by Andersen is on the same team and that team is all about exceeding our expectations as customers. The installers were impressive, knowledgeable, and assured the product install was perfect. We hope to use this Renewal by Andersen team for window replacements in the next year. Job well done, Ricky and Team!”

Jolene N.

“Very nice windows. The entire process from sales through installation was clearly explained. Each person we encountered was pleasant and very willing to listen and explain any questions. The installers were careful, considerate, quick and cleaned up well.”

Kevin S.

“My installers were great! They were very neat and tidy, not leaving any mess at all. Friendly, courteous and I could tell that they loved their jobs! My Design Consultant is also great. He checked with me numerous times throughout the process and was always prompt in responding to questions. I love my new windows and doors! (I can’t wait to see my electric bill go down either!)”

Tawna W.

“I had a fantastic experience. From the beginning to the end. Professional and knowledgeable. I have historic windows and needed to receive permission from the local commission. the team at the company helped me with preparing and presenting at the meeting. The installations were seamless. The crew were professional and kind. Cleaned up after the work.”

Maria T.

Review aggregator survey of 5-star reviews among leading full-service window replacement companies. December 2020