It’s not just a house, it’s your home

We know the installation of brand new windows and patio doors is a big deal. That’s why we’re bringing you Tandem™; our Houston-based, internal, installation-specific customer service organization.

Tandem is loaded with trained and experienced professionals who are solely dedicated to guiding you through the installation process. In short, with Tandem, you get your very own qualified installation guide (a concierge) at no additional cost.

When you buy from Renewal by Andersen, a concierge from Tandem is immediately assigned to you. Once assigned, we’ll introduce you to your concierge and, as your single-point-of-contact, your concierge will work with you throughout the installation process including:

Scheduling
Tech. measure
Order confirmation
Pre-installation
Installation
Completion
Follow up

So, whether you buy replacement windows, a new patio door, or both, not only will you own products of the highest quality, you’ll get installation that’s every bit as great. We understand – it’s not just a house, it’s your home.

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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