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TRUSTED BY O FALLON, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon179
    Verified window services reviews

Find Window pros in O Fallon

Avatar for Window World

Window World

3600 Rider Trail South
4.58(
238
)
Approved Pro

Window World

3600 Rider Trail South
4.58(
238
)
Approved Pro
Customers say: Super punctual
288 local quotes requested
22 years of experience

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

2173 HAWKINS ST STE H
New on AngiNew on Angi
Approved Pro

VELUX America

2173 HAWKINS ST STE H
New on AngiNew on Angi
Approved Pro
572 local quotes requested

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.


Avatar for Maris Home Improvements, Inc.

Maris Home Improvements, Inc.

208 Chesterfield Industrial Blvd
4.85(
54
)
Approved Pro

Maris Home Improvements, Inc.

208 Chesterfield Industrial Blvd
4.85(
54
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
308 local quotes requested

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


Avatar for Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis

Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis

2424 MO-94 South Outer Rd
4.78(
129
)
Approved Pro

Perfect Choice Home Solutions Your Authorized Bath Planet Dealer of St. Louis

2424 MO-94 South Outer Rd
4.78(
129
)
Approved Pro
Customers say: Terrific value
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
577 local quotes requested

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


"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


Avatar for BDry Solutions

BDry Solutions

11308 State Route 143
4.28(
37
)
Approved Pro

BDry Solutions

11308 State Route 143
4.28(
37
)
Approved Pro
Customers say: Quality work
59 local quotes requested
67 years of experience

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)*

120 Resource Dr
4.71(
1,001
)
Approved Pro

Midtown Home Improvements, Inc. (St. Louis)*

120 Resource Dr
4.71(
1,001
)
Approved Pro
Customers say: Quality work
33 years of experience
Free onsite estimate

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


Avatar for The Haire Corporation

The Haire Corporation

1747 Stevens Street
5.00(
8
)
Approved Pro

The Haire Corporation

1747 Stevens Street
5.00(
8
)
Approved Pro
Customers say: Quick response
29 local quotes requested
8 years of experience

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



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Windows questions, answered by experts

The rough opening refers to the framed space in the wall where the window will be placed. That means the full size of the space will be filled with both glass and frame once the new window is installed. For a standard window, a rough opening adds 1/2 inch to 3/4 inch to both the length and width.

While all windows require some maintenance, vinyl windows are the least hands-off. They’re easy to clean, weather resistant, and extremely durable. If you like the look of wood windows but hate the price tag and high maintenance requirements, you can add a faux wood finish to vinyl as well. 

Mulled windows are no less efficient than individual windows, provided the wall opening is the same size. Larger wall openings filled with glass will always reduce overall energy efficiency, as glass transmits heat more readily than a solid wall. If the windows that are mulled together have the same square footage as individual windows, you might actually see a small decrease in your electric bills, as mulled windows let in more natural light that can reduce interior lighting costs.

No, it isn’t necessary to have energy-efficient windows. However, if you care about your energy bill and making your windows more energy efficient, fixing any heat, UV, or air transfer issues is an excellent way to lower your bills and keep your house cooler in the summer and warmer in the winter.

Expect excavation below grade, creating a well for access, weatherproofing, and thorough inspections during setup.

By submitting this question, I acknowledge and agree that Angi may publicly display my name, city, state, and question on the website for professionals and others to see.

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.