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Top-Rated Garage remodelers in O Fallon - Updated Nov 2026

Avatar for Power 2 Construction & Remodeling
Power 2 Construction & Remodeling
4.8(
32
)
Garage - Remodel

Serving O Fallon, MO and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Power 2 Construction & Remodeling nailed our full basement remodel and the finished project is exactly what we envisioned. Randy was always available to talk, consult on our vision, and kept us up to date on the entire process. Fully satisfied with price, quality, and the timeline it took. We would use them again for any future projects. It is hard to trust someone with such a big project but you won’t go wrong hiring Power 2 Construction & Remodeling for your next job!"
Remodeling - General Project
Remodeling - General Project
Remodeling - General Project
Response rate100%
6 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Dana King Design-Build and Remodeling
Dana King Design-Build and Remodeling
4.6(
291
)
Garage - Remodel

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Warranties offered

Credit card accepted

"Dana King DB&R is a fun company to work with. We are now on our third project with them. 2 bathroom remodels and now we are in the middle of remodeling a hearth room and a dining room. I love the results we have had in the past. Very good design work, creative solutions, quality products and workmanship. The designers, managers, staff and trades people you work with are all very approachable and down to earth. Your final price will not be inexpensive but you will get what you want and that is important. If something isn’t quite right at first, they will fix it. My 1970s house is getting prettier, updated and more useable thanks to Dana King and her great group. They are also very good at understanding “age in place” meaning that your house can evolve and be better equipped to work for you as you age. We want to stay in our house a long time. I definitely do recommend Dana King Design Build and Remodel."
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

+139

Response time5 days
8 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Martin Construction & Painting
Martin Construction & Painting
4.9(
7
)
Garage - Remodel

Serving O Fallon, MO and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

We have the experience and dedication to bring your dreams to reality! We guarantee your satisfaction, and we won’t leave until the job is done right. Call or click to schedule a free estimate today! Additional phone number: 217.521.6275

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+18

Response time6 hrs
Response rate100%
4 neighbors recently requested a quote
Avatar for The Designer Craftsmen
The Designer Craftsmen
5.0(
5
)
Garage - Remodel

Serving O Fallon, MO and surrounding areas

Approved

Free estimates

Small jobs welcome

Credit card accepted

Hello there! I'm a Saint Charles/Saint Louis native and an experienced carpenter and remodeller of 17 years! Been in my own business since 2022. I love to do beautiful work at reasonable prices. I am focused on design-minded small construction and carpentry--this means that I am not primarily so focused on flashy features and the newest updates, and more focused on how I can create a project with you that makes sense with your specific house and it's architectural design. I love working with wood the most but really love doing most anything on a home and happy to do handyman work here and there as well. Please reach out so we can start a conversation! I'm happy to offer advice on how to navigate the construction industry or send you phone numbers of other great guys if you need other services. I focus on approachability and a down to earth experience. I love doing good work, i'm easy to deal with and show up when I say I will. Would love to work with you!

Saint Charles Re-Deck
Saint Charles Re-Deck
Saint Charles Re-Deck
Saint Charles Re-Deck
Saint Charles Re-Deck

+25

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FAQs for garage remodeling projects in O Fallon, MO

A garage apartment represents a valuable addition to your property when properly constructed according to local regulations. The potential benefits include additional living space for family members, rental income possibilities, and increased property value. 

Your specific return depends on local housing market conditions, construction quality, and ongoing maintenance. Consider consulting with a real estate professional regarding potential returns in your neighborhood.

Building a garage apartment requires multiple permits, with basic residential garage permits starting at $74 in most locations. You'll need separate approvals for structural elements, electrical systems, plumbing installations, and mechanical components. 

Many jurisdictions also require specific approval for accessory dwelling units. Contact your local building department early in your planning process to understand all requirements and associated costs.

Converting an existing garage into living space presents an alternative to new construction. The feasibility depends on your garage's structural condition, foundation type, and local zoning regulations. Key considerations include insulation requirements, utility connections, and moisture control. Research local codes thoroughly, as many municipalities have specific requirements for garage conversions.

The O Fallon, MO homeowners’ guide to garage remodelings

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