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Best skylight pros near O Fallon, IL

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Top-Rated Skylight pros in O Fallon - Updated Nov 2026

VELUX America
3.0(
2
)
Skylight - Repair, Replace or Seal an Existing SkylightSkylight - InstallSkylight - Install - For Business+1 more

Serving O Fallon, IL and surrounding areas

Approved (Corporate)

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.

1 neighbors recently requested a quote
Avatar for Ferguson Roofing
Ferguson Roofing
4.3(
198
)
Skylight - InstallSkylight - Install - For BusinessSkylight - Repair, Replace or Seal an Existing Skylight+1 more

Serving O Fallon, IL and surrounding areas

In business since 1939

Free estimates

Emergency services offered

"AMAZING! JOHN CAME OUT THE NEXT DAY, DIAGNOSED THE PROBLEM AND RETURNED ON SATURDAY TO CORRECT THE PROBLEM. WE HAD HEAVY RAIN ON SUNDAY AND HE SOLVED THE PROBLEM. I COULD NOT BE HAPPIER WITH JOHN AND THE REPAIRS. I HAVE USED THIS COMPANY FOR 20 YEARS AND THEY ARE TOP NOTCH IN MY BOOK. I WOULD RECOMMEND TO EVERYONE TO TALK WITH THEM FIRST BEFORE SIGNING WITH ANY OTHER COMPANY. THERE IS A REASON THEY HAVE BEEN AROUND FOR SUCH A LONG TIME, THEY TAKE CARE OF THEIR CUSTOMERS."
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Project Cleanup with Magnet

+13

Recommended by89%of homeowners
Avatar for Alliance Contracting Solutions
Alliance Contracting Solutions
4.4(
38
)
Skylight - InstallSkylight - Install - For BusinessSkylight - Repair, Replace or Seal an Existing Skylight+1 more

Serving O Fallon, IL and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"The work was great. Scotty and his team do nice work and if we weren't happy with anything, they fixed it. I waited a year after the work was completed to do this review to make sure I was pleased with the final outcome. About 4 months after the work was done, we found a crack in one of the granite counter tops. It took some time, but they did replace it at no cost and Scotty's work left zero trace of the rework."
Recommended by83%of homeowners
St. Louis Skylights
4.0(
1
)
Skylight - InstallSkylight - Repair, Replace or Seal an Existing Skylight

Serving O Fallon, IL and surrounding areas

In business since 2023

Free estimates

Warranties offered

"The first time the install crew arrived they brought an entirely different skylight than I ordered. The one they had wasnâ t even the correct dimensions. After some discussion as to how this mistake happened I decided to order a skylight of a different design than originally ordered which in the end was a better product. The second time the crew arrived with the new skylight with the proper dimensions and proceeded to make a proper installation. This entire episode took longer than anticipated however the company was very responsive to the situation. We are pleased with our new skylight and would use this company again if ever needed."
Response time1 day
Response rate86%
Recommended by100%of homeowners
Avatar for Greener Construction Svc
Greener Construction Svc
3.7(
11
)
Skylight - InstallSkylight - Install - For BusinessSkylight - Repair, Replace or Seal an Existing Skylight+1 more

Serving O Fallon, IL and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"The company was able to get top of the line materials and gave us a great price.  The laborers and foreman worked tirelessly, rarely taking a break and only then to quickly eat a sandwich before resuming their work. The craftsmanship was excellent and the deck, while always a big part of our family living space, is now beautiful.

"
Recommended by80%of homeowners
Western States Construction Inc
3.3(
3
)
Skylight - InstallSkylight - Install - For BusinessSkylight - Repair, Replace or Seal an Existing Skylight+1 more

Serving O Fallon, IL and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"They do absolutely excellent work. Daryll is the boss and he does great follow up to make sure that the fit and finish is accurate. His actual title is field supervisor, and he is very personable. He is very detailed orientated. They also do a great job of thoroughly going over all the options they have available for style and color. They do a very good job cleaning up after themselves.  There was absolutely no pressure and no upselling when you are picking materials. If I ever have to have this type of work again, they will be my first go-to people."
Recommended by66%of homeowners
Showing 1-10 of 20
Skylights FAQs, answered by experts

Yes, you can install skylights on an existing roof, and it’s a common service that many homeowners opt for, especially on older homes built when skylights weren’t as prevalent. The installation process will be a bit more involved, and the design and planning process will take longer, meaning you’ll pay more to install a skylight on an existing roof than you would in new construction. The process involves cutting a hole in the roof, moving rafters, if necessary, and installing and sealing around the skylight.

The decision to remove a skylight depends on your specific circumstances and preferences. There are several reasons why you might consider removing a skylight, such as extensive damage, a desire for better insulation, or the need to change the room's layout. Additionally, if the skylight is causing leaks or other issues, it may be necessary to remove and replace it (which can incur additional skylight installation costs). It's important to assess your specific situation and consult with professionals if needed to make an informed decision.

Whether you need a permit to install a skylight depends on the scope of the project and local regulations. Generally, permits are required if the installation involves altering the structural components of your home, such as moving roof rafters. In some municipalities, a permit might also be necessary if the skylight protrudes above the highest point of your existing roof. However, if no structural changes are made, a permit may not be needed. The cost for a skylight installation permit is typically under $100. A convenient time to add a skylight is during a roof replacement, as your contractor can incorporate the new opening into the design.

Ceiling costs depend on many factors, such as the material used and size, but coffered ceilings are considered one of the more expensive ceiling options. If you want to install a coffered ceiling but have a limited budget, consider using plywood instead of hardwood—it costs $2–$4.50 per square foot, while hardwood can be as much as $20 per square foot.

While it is possible to install a skylight as a DIY project, it is not recommended. Skylights are the most likely type of window to leak due to their position on the roof. Even minor mistakes during installation can lead to significant water damage and high repair costs. Additionally, working on a roof is dangerous, especially when maneuvering heavy, bulky windows. Due to the required roof modifications and the need for proper sealing and structural safety, hiring a professional skylight installer is strongly advised to avoid costly long-term issues.

The O Fallon, IL homeowners’ guide to skylight services

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