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UNDERST ANDING THE FUNDAMENTALS OF WINDOW REPLACEMENT

An effective window design is an integration of different components working together to enhance your home’s weather protection, energy efficiency, and visual quality. Let Renewal by Andersen® of St. Louis, your trusted Chesterfield, Missouri, windows company, talk about the fundamentals of a successful window replacement:

Understanding The Fundamentals Of Window Replacement

Durability

Durability issues stem largely from the window’s framing material and craftsmanship. For instance, aluminum frames are innately resilient to corrosion in most environments; however, they can deteriorate without proper coating. Their corner sealants are also highly susceptible to de-bonding with prolonged moisture exposure. Meanwhile, wood frames are likely to rot with moisture contact. They are also prone to bleaching caused by solar radiation.

To ensure the superior durability and longer service life of our replacement windows in Chesterfield, MO, we use our innovative Fibrex® composite frames. This material contains a unique blend of PVC polymer and reclaimed wood fiber that can withst and harsh weather conditions and severe temperature shifts. Fibrex is guaranteed to resist fading, contraction, rotting, and expansion regardless of the environment.

Thermal Performance

The frame, glass coating, and glazing are the greatest contributors to your window’s thermal performance. Your windows should allow more daylight with the least heat transmission. Renewal by Andersen windows come with dual-glazed glass. We optimize the airspace between these two panels to enhance energy efficiency.

Our Chesterfield doors and windows come with our st andard High-Performance™ Low-E4® glass that features a special coating. This reflects heat to maintain a comfortable indoor temperature. It can also block harsh UV rays to protect your furnishings from fading.

Aesthetics

You can add a dramatic flair to your home with different window styles. Windows are known to enhance a home’s interior design and curb appeal. The clear glass and classic silhouettes of our windows can certainly boost your home’s aesthetics. Their generous sight lines and panoramic views create a strong visual impression.

Check the qualities of your new windows to ensure their optimum performance. You can also count on our experts to help you find the right window solutions. Call us today at (314) 310-3636 to start your window replacement project.

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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