4.2 
192 *The Angi rating for Window Service companies in O Fallon, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
*The HomeAdvisor rating for Window Service companies in O Fallon, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window Service needs.
Last update on February 04, 2026
Serving O Fallon, IL and surrounding areas
Approved (Corporate)
In business since 2003
Free estimates
Warranties offered
"We absolutely love our windows"
Serving O Fallon, IL and surrounding areas
Approved
In business since 1992
Free estimates
Warranties offered
"Very well, fast and efficient"
Serving O Fallon, IL and surrounding areas
Approved
In business since 2002
Free estimates
Warranties offered
"Darren was incredibly honest, helpful, polite, and very interested in helping solve our window problems and the best way to do that. We are very excited about our windows! Would highly recommend using Universal Windows Direct!"
+6
Serving O Fallon, IL and surrounding areas
Approved (Corporate)
In business since 2004
Free estimates
Emergency services offered
"Bath Planet's team of experts made our window replacement project feel so easy. The new windows have improved both the appearance and energy efficiency of our home."
+47
Serving O Fallon, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Free estimates
Warranties offered
"Alex Faires was a fantastic project manager. We had extensive hail damage and had to replace our entire roof, siding and gutters. Alex is knowledgeable and took the time to answer all of our questions. Alex was very responsive and kept us informed on scheduling and material deliveries every step of the way. H&F handled everything directly with our insurance, making the process seamless and hassle free. Alex coordinated multiple crews to minimize the disruption and all of the work was completed ahead of schedule! We are very happy with the results and highly recommend Alex and H&F!!"
+147
Serving O Fallon, IL and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 2007
Free estimates
Warranties offered
"Renewal by Andersen of Wyoming did an incredible job with installing windows in our home. Thank you to the team who did the install and to the company for creating these exceptional windows."
+2
Serving O Fallon, IL and surrounding areas
Approved
In business since 2000
Warranties offered
Small jobs welcome
"Excellent. Very efficient, very friendly and reasonably priced. Would use them again on any project I need help with."
+5
Serving O Fallon, IL and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1992
Free estimates
Warranties offered
"I would highly recommend this company. They were very professional, completed the work on time and did an excellent clean up!"
+16
Serving O Fallon, IL and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Credit card accepted
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
Serving O Fallon, IL and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
+19
From average costs to expert advice, get all the answers you need to get your job done.
Discover the energy-efficient window costs. Learn about installation prices, cost factors, and tips to save money on your window upgrade.
Steel windows are a durable, modern option for your home. Learn how much steel windows cost and see if they’re a good fit for your home.
The cost of new windows heavily depends on their size, but other factors come into play as well. This guide breaks down window costs based on various factors so you can make an informed budget for this project.
Buying windows can be complex. There are a ton of things to consider before buying to ensure you’re making the right choice for your home. Explore more here.
Understanding standard window sizes is easy once you get the hang of it. Here's how to order windows just like the pros.
Planning a home renovation or new window installation? Use this guide to perfect window placement to get the most joy and value out of your investment.
