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THE USE OF FIBREX® AND LOW-E4 GLASS IN ANDERSEN PRODUCTS

When you work with Renewal by Andersen® for your windows and doors in Missouri, you’re choosing the best products and customer service possible. Our parent company has installed over two million windows in over 300,000 homes nationwide. We take pride on our more than 100 years in the home improvement industry, making homes more beautiful and efficient through the years.

The Use Of Fibrex And Low E4 Glass In Andersen Products

You may ask, “What makes Renewal by Andersen windows the number one in the industry?” Well, we make sure that our customers benefit from the highest quality materials for our products. In this entry, we discuss how our Fibrex® and Low-E4® glass packages help revolutionize the way we manufacture and install windows.

Fibrex® Material Frames

Homeowners are looking for superior durability in their replacement windows. Once we complete the windows installation in St. Charles, MO, they expect these to withst and any element and st and the test of time. To meet their needs, Renewal by Andersen exclusively manufactures Fibrex material frames for our windows.

Fibrex offers the classic beauty, strength, and insulating value of a real wood. It also exhibits the low maintenance properties of vinyl, making sure your windows won’t suffer from cracking and rotting. When you choose Renewal by Andersen, you get the strongest and most efficient frame available in the market.

High-Performance™ Low-E4® Glass

Our windows come with advanced glass packages, featuring High-Performance Low-E4 glass. This is one of the most energy-efficient glasses for windows, offering great control over your heating and cooling costs. Apart from saving energy, these also a better view of your outdoors and block noise and harmful UV rays.

Renewal by Andersen of St. Louis is your trusted partner for all your window replacement needs. We provide many window options, including double-hung, sliding, and casement windows in St. Charles, MO. These products feature Fibrex material and Low-E4 glass, assuring you of durability and energy efficiency.

Learn more about the benefits of our replacement windows by contacting us today. Give us a call at (314) 332-2364 to schedule a FREE consultation on windows in MO.

Reviews

"Have nothing but great things to say about the window installation done today by John Hutchinson with Renewal by Andersen! He was friendly, personable and professional and did a great job installing. He did a great job of putting down roller pads and tarps with next to zero clean up. Would highly recommend them for any window replacement needed!"

Mark V.
Jun 26, 2025

"We had our new Renewal by Andersen windows installed on June 5th & 6th, 2025 and we LOVE them! The quality, beauty, and functionality are best-in-class! The whole experience from dinner presentation at Lazy River Grill, the initial in-home sales consultation and measurement, the regular communications from the salesman and concierge, and the installation team’s professionalism and skills made the process so seamless. This is the second home we have opted for Renewal windows and doors and have been delighted both times! Thank you Renewal by Andersen STL! "

Jeff C.
Jun 7, 2025

"I had an excellent experience with RbA STL. Our designer, Courtney, was great and the finished product is awesome. The installation was easy and the gentlemen left our home cleaner than they found it upon entering. I would recommend RbA STL - you’ll get tired from their constant contacts, and that’s a GOOD thing!"

Jeramy D
Jun 3, 2025

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