Get matched with top window pros in O Fallon, MO

O Fallon homeowners rate window pros in our network

4.5

(934 reviews)

Top-rated window pros.

Need a pro for your window service project in O Fallon, MO?

Select your specific project to find the pro for you.

Verified Reviews for Window Service pros in O Fallon, MO

*The Angi rating for Window Service companies in O Fallon, MO 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, MO 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 October 30, 2025

Find Window pros in O Fallon

Avatar for Hyperion Glass Company
Hyperion Glass Company
4.9(
84
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"We needed balancers replaced on two large windows. Brett did a great job explaining what work was needed to repair our windows. Work was completed in a timely and professional manor. It also cost less than I anticipated. I highly recommend Hyperion Glass Company."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

Response time2 days
3 neighbors recently requested a quote
Recommended by95%of homeowners
Request Quote
Avatar for Midwest Window Tinting
Midwest Window Tinting
5.0(
28
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 1992

Free estimates

Warranties offered

"Midwest Window Tinting did an excellent job. They arrived at the agreed time, they were respect of our house, they coached us on the tinting level, they had the job completed in 2.5 hours and cleaned up after themselves."
Additional Photos
St. John's Mercy NICU
Innsbrook
Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Window Genie
Window Genie
4.8(
107
)

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Credit card accepted

"The window cleaner showed up exactly on time. He cleaned all of my windows inside and out along with the window sills. He did a beautiful job and I will use Window Genie again!"
Window Cleaning
Water Fed Pole
Window Cleaning
Window Cleaning
Concrete Sealing Before

+14

Response time7 hrs
Response rate92%
1 neighbors recently requested a quote
Request Quote
Avatar for Sane Windows, LLC
Sane Windows, LLC
5.0(
6
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

At Sane Windows and Doors, we believe in making the window and door buying experience as easy and transparent as possible. That’s why we stand out with superior customer support—from the moment you contact us to long after your project is complete. Unlike traditional sales-focused window companies, we skip the high-pressure pitches and in-home visits. With our no-sales-pitch appointments and simple online pricing, you can explore your options, get a quote, and make decisions—all from the comfort of your home. It's window shopping made easy, without the hassle.

Double Hung Windows
Double Hung Windows
Picture Windows
Windows and Door
Large Windows

+4

Response time6 hrs
Response rate100%
9 neighbors recently requested a quote
Request Quote
Avatar for All-Type Window & Door, LLC
All-Type Window & Door, LLC
4.6(
25
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Brad was one of the best people to do business with: not high-pressure at all, very easy going, professional, good workmanship, patiently answered all our questions, and gave us a reasonable price for our three windows. They were only just installed on Feb. 6, '20, so it may be too soon to evaluate their quality, but they seem to be installed well and look well-made for mid-price windows. Brad's clean-up of the work sites was very thorough, as well. We are very pleased with Brad and All-Type Window and Door LLC and would definitely use them again!"
Stemson
Legacy 2lt sliding window
Exterior view legacy sliding window
Bathroom windows
New windows and trim

+12

Response time1 day
12 neighbors recently requested a quote
Recommended by95%of homeowners
Request Quote
Avatar for St. Louis Window Tinting, LLC
St. Louis Window Tinting, LLC
4.7(
29
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"I canâ t express how satisfied I am with my windows and sliding door after the superior job completed by St. Louis Window Tinting. To say they are excellent is an understatement! But they are!!! It started with our sales consultant (Kathy), who took the time to explain the differences between products and the value each product would add. She scheduled us for the installation that day. The installation team Ed and Bob, weâ re excellent! They are very professional and knowledgeable. They answered all of my questions. They even took extra care to protect our home and did an amazing job!! Thank you St. Louis Window Tinting everything looks incredible! I HIGHLY RECOMMEND ST. LOUIS WINDOW TINTING!!!!"
Response time3 days
44 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
Avatar for Universal Windows Direct of St Louis
Universal Windows Direct of St Louis
4.6(
57
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Sale rep, Camden was amazing. The value of the windows are outstanding. Super excited for the Windows to be installed. Highly recommended!!"
Brown Woodgrain/Glass Entry Door
Casement Windows
Black Woodgrain/Glass Entry Door
Double Hung
Brown Woodgrain/Glass Entry Door

+6

7 neighbors recently requested a quote
Recommended by88%of homeowners
Request Quote
...
Showing 1-10 of 490
Windows questions, answered by experts

To keep window service projects safe in O'Fallon, install window guards and stops to prevent accidental falls, and opt for cordless window coverings to eliminate cord risks. During work, set up temporary barriers to keep children and pets away from the area. Choose pet-resistant screens for added durability, and discuss safety measures and thorough cleanup with your contractor before starting the project.

Helpful?

When hiring a window service pro in O'Fallon, prioritize those with proven experience handling local weather extremes—hot, humid summers and chilly winters. Ask about their knowledge of energy-efficient windows and storm-resistant options suited to O'Fallon homes. Verify they carry proper insurance and understand local permit requirements. A strong reputation and clear communication about timelines and cleanup are also essential for a smooth project.

Helpful?

For minor window issues in O'Fallon, regularly clean glass and tracks with mild soap, and check for small gaps or worn weatherstripping. Replace damaged caulking to improve insulation and keep out moisture. Always use a sturdy ladder and avoid leaning out windows. If you encounter broken glass, persistent fogging, or structural concerns, stop and contact a professional for safe, effective repairs.

Helpful?

New homeowners in O'Fallon should start by inspecting window seals for air leaks, especially in older homes common to the area. Upgrading to double-pane or energy-efficient windows can help manage temperature swings. Reinforce window locks for added security, and consider installing storm windows to protect against severe weather. Cleaning window wells and replacing worn weatherstripping are also smart early maintenance steps.

Helpful?

In O'Fallon, rising energy bills, noticeable drafts, or condensation between window panes are strong signs it’s time for service. Watch for ice buildup or water stains around frames during winter, and inspect for rot or sticking windows each spring. If you spot cracked glass, warped frames, or difficulty opening windows, it’s best to schedule professional help promptly to prevent further damage.

Helpful?

The O Fallon, MO homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles