
Get matched with top window pros in O Fallon, IL
There are 14 highly-rated local window pros.
Need a pro for your window service project in O Fallon, IL?
TRUSTED BY O FALLON, IL HOMEOWNERS
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Average homeowner rating179
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Verified Reviews for Window Service pros in O Fallon, IL
*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 October 07, 2025
Find Window pros in O Fallon

Window World
Window World
We are committed to our customers, providing exceptional products at an unbeatable price with service at the top of the list. Our products are EPA Lead-Safe certified and our windows are Energy Star certified and are backed by the Good Housekeeping Seal. Additional DBAs - Window World of St Louis & Window World Inc. Locally owned & operated by Jon Gillette & Jim Lomax.
"It went very well! I had one issue with the work and they promptly resolved it to my satisfaction."
Mary S on January 2024
We are committed to our customers, providing exceptional products at an unbeatable price with service at the top of the list. Our products are EPA Lead-Safe certified and our windows are Energy Star certified and are backed by the Good Housekeeping Seal. Additional DBAs - Window World of St Louis & Window World Inc. Locally owned & operated by Jon Gillette & Jim Lomax.
"It went very well! I had one issue with the work and they promptly resolved it to my satisfaction."
Mary S on January 2024
VELUX America
VELUX America
Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.
Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.

Maris Home Improvements, Inc.
Maris Home Improvements, Inc.
Family owned and operated, we perform. With over 20 years of experience we know what it takes to make you happy. We are local in Chesterfield and our top priority is a satisfied customer.
"I had a horrible experience with Maris Home Improvements. I don't recommend them. You are better off going with Window World!"
Monica C on May 2025
Family owned and operated, we perform. With over 20 years of experience we know what it takes to make you happy. We are local in Chesterfield and our top priority is a satisfied customer.
"I had a horrible experience with Maris Home Improvements. I don't recommend them. You are better off going with Window World!"
Monica C on May 2025

Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis
Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis
Complete Bath and 2 Day Remodeling services offered: also roofing, siding, windows, and gutter/gutter cover installations. Bath Planet has been the go-to St. Louis bathroom remodeling company for over 17 years. From replacement shower surrounds to bathtubs that are designed to fit perfectly over your existing tub, our experienced team has what it takes to provide you with a bathroom that is beautiful and extremely easy to maintain. Not only do we believe very strongly in providing quality, long-lasting products, we also believe in providing an outstanding customer experience. We offer free estimates, and we can complete your project in as little as one day. We also have energy Star double pane windows, beautiful vinyl siding looks like real wood, roofing of all different styles.
"This company absolutely sucks!!! They will not stop harassing me with phone calls. They've called about 15 times, and I've told them each and every time that i no longer need help. And they won't stop!!! I had to report them to angis list. I would have reported them to BBB but they dont seem to exist anywhere except here and some website called Houzz where their account is suspended. I dont think this is a real company. Beware!!!!!"
Courtney M on July 2025
Complete Bath and 2 Day Remodeling services offered: also roofing, siding, windows, and gutter/gutter cover installations. Bath Planet has been the go-to St. Louis bathroom remodeling company for over 17 years. From replacement shower surrounds to bathtubs that are designed to fit perfectly over your existing tub, our experienced team has what it takes to provide you with a bathroom that is beautiful and extremely easy to maintain. Not only do we believe very strongly in providing quality, long-lasting products, we also believe in providing an outstanding customer experience. We offer free estimates, and we can complete your project in as little as one day. We also have energy Star double pane windows, beautiful vinyl siding looks like real wood, roofing of all different styles.
"This company absolutely sucks!!! They will not stop harassing me with phone calls. They've called about 15 times, and I've told them each and every time that i no longer need help. And they won't stop!!! I had to report them to angis list. I would have reported them to BBB but they dont seem to exist anywhere except here and some website called Houzz where their account is suspended. I dont think this is a real company. Beware!!!!!"
Courtney M on July 2025

Renewal by Andersen
Renewal by Andersen
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"
JENNIFER S on August 2025
Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation
"We are extremely happy with how our new windows and new front door turned out. After some unexpected challenges with the way our home was built, our installation crew quickly and efficiently adapted to make sure our windows and door were installed with expert care. Every time we see our new beautiful picture window we are left breathless! And our beautiful front door is the perfect upgrade for the look of our home. Thank you RBA!"
JENNIFER S on August 2025

BDry Solutions
BDry Solutions
B-Dry® Systems Inc. has been established since 1958, B-Dry Solutions owns and operates 3 Independent Licensee’s of B-Dry ® Systems Inc., that have been actively serving the area since 1983 under the name B-Dry Systems of Metro East, Central and St. Louis Mo. B-Dry® Systems Inc. patented waterproofing system stops the 5 ways water enters your basement or crawlspace and our transferable lifetime warranty has protected homes since 1958. The B-Dry® System holds seven patents resulting from constant innovation for our customers. Over 40% of our business comes from referrals alone. B-Dry Solutions has a solution for virtually any foundation. Whether your home has a small wall crack, or a major foundation wall bowing, leaning, settling or sinking, B-Dry Solutions can handle the job. B-Dry Solutions installs Egress Windows which turns basements into beautiful warm living areas enhanced with natural sunlight. An Egress window is required by code for below grade living
"if you buy a pool from Bwet/Bdry (or any other service) just know that you are going to be lied to. There are several reviews out there about the company lying to their customers. The people at the front desk are the worst customer service people I have ever encountered, and they lie as well. We bought an above ground pool for Bwet/Bdry and we had to replace the whole thing out of our pocket except the shell because of the lies of Bwet and Doughboy pools. Avoid!! Go anywhere else."
Amy M on March 2024
B-Dry® Systems Inc. has been established since 1958, B-Dry Solutions owns and operates 3 Independent Licensee’s of B-Dry ® Systems Inc., that have been actively serving the area since 1983 under the name B-Dry Systems of Metro East, Central and St. Louis Mo. B-Dry® Systems Inc. patented waterproofing system stops the 5 ways water enters your basement or crawlspace and our transferable lifetime warranty has protected homes since 1958. The B-Dry® System holds seven patents resulting from constant innovation for our customers. Over 40% of our business comes from referrals alone. B-Dry Solutions has a solution for virtually any foundation. Whether your home has a small wall crack, or a major foundation wall bowing, leaning, settling or sinking, B-Dry Solutions can handle the job. B-Dry Solutions installs Egress Windows which turns basements into beautiful warm living areas enhanced with natural sunlight. An Egress window is required by code for below grade living
"if you buy a pool from Bwet/Bdry (or any other service) just know that you are going to be lied to. There are several reviews out there about the company lying to their customers. The people at the front desk are the worst customer service people I have ever encountered, and they lie as well. We bought an above ground pool for Bwet/Bdry and we had to replace the whole thing out of our pocket except the shell because of the lies of Bwet and Doughboy pools. Avoid!! Go anywhere else."
Amy M on March 2024
Midtown Home Improvements, Inc. (St. Louis)*
Midtown Home Improvements, Inc. (St. Louis)*
Midtown Home Improvements is your neighborhood home improvement specialist. Whether you are looking for energy savings with Triple Pane Windows, a new low maintenance PVC Cellular deck, a maintenance free vinyl fence, or the thickest permanent siding, you can trust the experts at Midtown. Midown Home Improvements, located in Wentzville Missouri, also offers full or partial remodeling of your Kitchen and Bathroom. We believe in providing superior products from only the finest manufacturers. Give us a call for more information and a free quote! (636)379-8889
"The entire process with Midtown was a disaster. Jade the salesman is a high pressure, unprofessional, liar. Nick the General Manager is the one who trained him and it?s clear the apple doesn?t fall far from the tree. They don?t self perform any work, and it shows on the price, communication, craftsmanship, and professionalism. Save your time and money and go with a different company! Added video of our brand new underdecking system that doesn?t work!! The General Manager has yet to send someone out to fix it."
Jay N on April 2025
Midtown Home Improvements is your neighborhood home improvement specialist. Whether you are looking for energy savings with Triple Pane Windows, a new low maintenance PVC Cellular deck, a maintenance free vinyl fence, or the thickest permanent siding, you can trust the experts at Midtown. Midown Home Improvements, located in Wentzville Missouri, also offers full or partial remodeling of your Kitchen and Bathroom. We believe in providing superior products from only the finest manufacturers. Give us a call for more information and a free quote! (636)379-8889
"The entire process with Midtown was a disaster. Jade the salesman is a high pressure, unprofessional, liar. Nick the General Manager is the one who trained him and it?s clear the apple doesn?t fall far from the tree. They don?t self perform any work, and it shows on the price, communication, craftsmanship, and professionalism. Save your time and money and go with a different company! Added video of our brand new underdecking system that doesn?t work!! The General Manager has yet to send someone out to fix it."
Jay N on April 2025

The Haire Corporation
The Haire Corporation
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!
"I HIGHLY RECOMMEND Dontate Construction Company from the beginning to end Mr. Dontate and his crew displayed excellent performance, dedication and professionalism, his leadership style was outstanding! Maya Angelou quoted “I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.” This is why my husband and I strongly recommend this the Dontate Construction Company. Mr. Dontate this is how you made us feel, thank you so much for your big beautiful smile (always) and for crew. I also wanted to thank Angi list for recommending this awesome amazing company, from beginning to end, we’re pleased. The project team was very enthusiastic and very upbeat."
Angie M on July 2025
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!
"I HIGHLY RECOMMEND Dontate Construction Company from the beginning to end Mr. Dontate and his crew displayed excellent performance, dedication and professionalism, his leadership style was outstanding! Maya Angelou quoted “I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.” This is why my husband and I strongly recommend this the Dontate Construction Company. Mr. Dontate this is how you made us feel, thank you so much for your big beautiful smile (always) and for crew. I also wanted to thank Angi list for recommending this awesome amazing company, from beginning to end, we’re pleased. The project team was very enthusiastic and very upbeat."
Angie M on July 2025
Bedard Handyman
Bedard Handyman
Valued handyman proficient in home remodel and repair. 10+ years experience in electric, plumbing, painting, flooring and more. I work by myself. Pet friendly. No project too big or small.
Valued handyman proficient in home remodel and repair. 10+ years experience in electric, plumbing, painting, flooring and more. I work by myself. Pet friendly. No project too big or small.
Building Solutions
Building Solutions
I been building houses and decks for over 12 years and looking to take on projects I can do responsibly and efficiently.
I been building houses and decks for over 12 years and looking to take on projects I can do responsibly and efficiently.
The O Fallon, IL homeowners’ guide to window services
From average costs to expert advice, get all the answers you need to get your job done.
Is it time to upgrade your home’s windows? Learn more about window replacement costs, considering various window sizes, styles, and energy efficiency.
- •
Find out the cost to replace weatherstripping. Learn about material and labor costs, cost-saving tips, and what impacts your total price.
Learn how to finish newly installed windows from the inside by adding wood trim.
Our guide walks you through all the questions you should ask a window replacement contractor before hiring them to replace the windows in your home.
Understanding standard window sizes is easy once you get the hang of it. Here's how to order windows just like the pros.
The average double-hung window costs $800, but prices vary by size, material, type, and more. Read this guide to help you budget for your double-hung windows.
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