Top-rated garage builders.

Get matched with top garage builders in O Fallon, MO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Garage builders in O Fallon

Avatar for Dana King Design-Build and Remodeling
Dana King Design-Build and Remodeling
4.8(
209
)

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Warranties offered

Credit card accepted

"We had Dana King - Design Build Remodeling remove and replace our front porch in 2015. We were very satisfied with their professionalism throughout the process from getting a quote to scheduling and completing the project. We received so many compliments from friends and neighbors on the final product. Definitely recommend."
Original wood floors were sand,stained and finished to bring out the beauty of the homes original flooring.
Modern Whole Home Remodel
Master Bath Remodel
Premium Garage Remodel
Master Suite Remodel

+135

8 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Tittel Construction
Tittel Construction
5.0(
11
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Quick to respond and got the work done as promised fast. Happy with the quality and feel I paid a fair price. Will hire again when I have something."
Shed build
Staircase rebuild for customer
Decorative ceiling
Fascia and siding
Response time2 days
Response rate91%
6 neighbors recently requested a quote
Avatar for VMK Remodeling
VMK Remodeling
4.8(
16
)

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"I could not be happier with the final product! The first pic is the old bathroom from the 60s when the house was built. The rest are the final rebuild and it looks great. I would highly recommend VMK Remodeling for any project that you might have. I am also going to get a bid on redoing the deck on the back of the house as Vince's company does decks as well! Thanks to his great crew as well, great people to work with."
Response time2 days
Response rate90%
52 neighbors recently requested a quote
Avatar for The Shed Shak
The Shed Shak
5.0(
4
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"They went above and beyond everything they promised. The building is amazing and the people are even better!! I would highly recommend Shed Shak to anyone!"
Shed Build
8x12 Victorian Playhouse
10x12 Side Utility
12x20 Best Value Metal
12x24 Cottage Shed

+6

Response time2 days
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Weaver Commercial & Home Improvements, LLC
Weaver Commercial & Home Improvements, LLC
4.1(
16
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Excellent workmanship. Completed work early. The owner of the company, Scot, came out to look at my project and take measurements. He emailed a written bid the next day. I really appreciated his no nonsense manner. So many of the companies that we had come out for bids, sit down with you for an hour telling you how great they are, shoot you an inflated bid on a piece of scratch paper and don't even bother to formalize it in writing. . . then they find ways to come out 2 or 3 more times to "refine" their initial quote. I like that Scot gave me the best quote without all the games that the "salesmen" that the other companies use play. With Scot you don't feel that most of the price is built in as sales commission."
Outdoor living space
Covered patio with bar
Master bath remodel
Adding dormer windows customizes your home
Basement entertaining

+175

Response time1 day
24 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for GMV Roofing & Construction LLC
GMV Roofing & Construction LLC
3.7(
3
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2015

Free estimates

Offers commercial services

GMV Roofing & Construction stands as a premier roofing and construction provider in St. Louis, Missouri, delivering exceptional craftsmanship with over 18 years of experience. Formerly known as Vargas Roofing & Construction, we’ve earned a statewide reputation as a trusted roofing contractor, transforming homes and businesses with reliable, high-quality solutions. Founded by Gerardo Vargas, our family-owned company is deeply rooted in the St. Louis community, understanding the unique needs of Missouri homeowners and businesses facing harsh weather and aging structures.\n\n

2 neighbors recently requested a quote
Avatar for Ethos Building Group, LLC.
Ethos Building Group, LLC.
5.0(
1
)

Serving O Fallon, MO and surrounding areas

Approved

Credit card accepted

Customers say: Quick response

"From the beginning of my project in January 2024, I have never regretted my decision to choose Ethos Building Group LLc. Jeh Johnson and his partner Tracy Herod have worked diligently to execute the itemized proposal that began this project to rehab, restore, and rebuild my home at 607 Wilmington ave. St. Louis MO 63111. An incredible number of tradesmen and tradeswomen have done their individual tasks all on a schedule professionally overseen by Jeh. These liscensed and masters of their trades worked alongside Jeh who if necessary stepped in and aided e these individuals. His overall expertise has brought my home to this point. One must keep in mind that a burnout like my home is an unusal job for Ethos Buildig Group LLc to accept. Yet at every stage my home has been given the same careful and thorough attention as their larger jobs. And despite some push back with my insurance company every thing has proceeded smoothly and orderly manner given the inevitable supply chain delays. Jeh Johnson is an affable young man who has facilitated all phases my prject and has even taken time to educate me on all the intricacies involved in a project such as mine. I cannot think of any single word to describe my experience with Ethos Building Group LLc but the forgoing will have to suffice. Thanks you for your kind attention. Stay safe and make a point of telling those who you find dear just what they mean to you."
Builders - Garages/Barns/Sheds Project
Insurance
Clayton Basement & Addition
Bath / Walk in Shower
Egress windows

+43

Response time2 days
Recommended by100%of homeowners
...
Showing 1-10 of 348
FAQs for garage building service projects in O Fallon, MO

A well‑constructed, properly permitted detached garage adds between $12,000 and $36,000 to a home’s resale value. Buyers appreciate the secure parking, extra storage, and flexible workspace, so appraisers often bump the property’s value accordingly. The exact return depends on the garage’s size, finishes, and how well it matches the main house, but most homeowners see a strong ROI when the build meets local codes and passes inspection.

Yes—once it meets local building codes and you secure the proper permits, a detached garage can be converted into living space. Finishing the interior, adding climate control, and ensuring safe egress effectively increase your usable square footage, though it may not always count toward the official listing. Skipping permits can trigger fines and even force you to undo the work, so always clear plans with your city first.

Most homeowners policies cover a detached garage under the “other structures” provision, but coverage limits vary. Review your declarations page and ask your agent how much protection you have for separate structures. If the limit is lower than the garage’s replacement cost, you can raise it for a modest premium. Confirming the details now prevents headaches if you ever need to file a claim.

The O Fallon, MO homeowners’ guide to garage building services

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

  • stone home with double garage doors

    Need to replace your garage door? Here’s how much it costs, what factors affect cost, and what to expect.

  • new garage built onto house

    How much does it cost to build a garage? Explore cost factors, budgeting tips, and how a garage adds to your home’s value with our detailed cost guide.

  • Walkout patio with concrete floor

    Wondering who seals concrete? Learn who to hire, when DIY makes sense, and how pros seal driveways and garage floors—start your search now