Proudly serving Greater St. Louis

CALL TODAY: (636) 220-5922


The ultimate balance between energy-efficiency and beauty, the Window Depot Signature Series replacement window line has been crafted to deliver the highest level of value possible.

Sound too good to be true?  Contact Us Now to learn more about Triple Pane Windows.  We call it our “Unfair Advantage”.  Once you’ve discovered all of the advantages of triple pane windows, and seen our price…we think you’ll agree that you wouldn’t settle for anything less for your home.

Styles Offered:  Double Hung, Horizontal Slider, Casement, Fixed (Picture), Bay/Bow, Garden, Sliding Patio Door.


Make a Grand Entrance With an Exceptional Entry Door

 Your entry door makes one of the biggest impacts on the outside of your home. Set the tone of your home with a beautiful entry door from Window Depot USA. Our entry doors are professionally crafted and come in a variety of colors and styles to suit your personal tastes.

Nothing says welcome home more than a beautiful entry door. Select from a variety of colors and experience true quality craftsmanship with Window Depot USA’s entry doors. Not only do they keep the elements out, they are thermally-efficient and help your home maintain a consistent temperature..


(636) 220-5922

Recent Google Reviews from our Happy Customers

  • review rating 5  Window Depot USA of St. Louis is a very professional company. I had the pleasure of working with Amanda. She was exceptionally knowledgeable, honest, and answered all of my questions. The triple pane window is impressive and surprisingly affordable. I would highly recommend Window Depot.

    thumb Rachel Wortham

    review rating 5  We have many windows in our home so I was leery when it came to doing something about them. Our home is 107 years old and the old wooden windows haven’t been cutting it for a long time. The estimate process was simple enough and painless. The price was very reasonable and in fact, came in much cheaper than the other estimate that I received. Installation was a breeze. Nothing like starting early in the morning. The boys even worked in the rain on day two. We no longer have a drafty house and I look forward to opening up the windows (all of them) during spring. I would recommend Window Depot in a heart beat.

    thumb Guy Favazza

    review rating 5  I can’t say enough wonderful things about my experience with Window Depot. Amanda O. was my first point of contact. She was extremely professional in her communications, arrived on time and was up front about the time frame from the order to the installation. She took time to explain why these windows were better than others that may be on the market. Mike F. came to measure the windows and again, was so professional in his communications. I appreciated a specific time for his appointment to measure and to install because I don’t have time to sit in a time purgatory of 8-12 or 1-5. He said 8:00 am and was there at 8:00 am to measure. When it came time for installation, he called me and we agreed on a time and he was there right on time. The installation was incredibly smooth and the cleanup was impeccable. I will not hesitate to recommend Window Depot USA of St Louis. The quality and the commitment to excellent business practice is just outstanding!

    thumb tress kurzym
  • review rating 5  I cannot say enough how much I love our new windows! The installers were amazing getting the job done quickly, great work, and cleanup was outstanding. Amanda Obernuefemann made this project go amazingly smooth and answered any questions we had before, during, & after to make sure everything was addressed. Highly recommend her and her company for anyone looking!

    thumb Kadine Long

    review rating 5  I've worked with Amanda, a rep there, and shes very professional, courteous, and nice. The windows are really great quality and very reasonably priced.

    thumb Jennifer Clark

Previously Completed Projects

5988 Mid Rivers Mall Drive #217.
St. Peters, MO 63304
(636) 220-5922

We serve the following counties: Madison (IL), Monroe (IL), Saint Clair (IL), Saint Charles (MO), Saint Louis (MO).

An independently owned & operated licensee of the Window Depot USA network.