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Best foundation repair specialists near O Fallon, MO

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TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon318
    Verified foundation repairs reviews

Top-Rated Foundation repair specialists in O Fallon - Updated Nov 2026

Avatar for Quacker's Waterproofing & Basement Repair, LLC
Quacker's Waterproofing & Basement Repair, LLC
4.7(
167
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairConcrete Foundation - Raise+1 more

Serving O Fallon, MO and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

"Quacker's Waterproofing was wonderful. When they came for the estimate, they were fast and no nonsense. They weren't trying to convince me of things that needed doing or dramatizing the work for more money. When I had questions about the work, they didn't make me feel dumb but took extra time out of their day so that I had peace of mind with my foundation. I hope to never need their help again, but I will definitely call them if I do. Special kudos to Rob!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

5 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Roberts Foundation And Crack Repair
Roberts Foundation And Crack Repair
4.2(
164
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairFoundation Drainage - Install or Replace

Serving O Fallon, MO and surrounding areas

Approved

In business since 1991

Free estimates

Credit card accepted

"Everything about this repair job was wonderful - from Brad giving us the bid (and explaining exactly what would be done), to Will and Ree (sp?) doing the excellent work. Everyone was courteous, professional and left everything spotless. And the cost was surprisingly lower than I thought it would be."
.
Response time3 days
21 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for High and Dry Foundation Repair
High and Dry Foundation Repair
4.7(
37
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - Repair

Serving O Fallon, MO and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"I was very fortunate to have High & Dry to tackle couple of cracks that used to leak water whenever it rains. These cracks repaired couple years ago. So far I had No water leaking whatsoever. Job well done. Company you depend on. Fast, clean, reasonable. I’m a customer for life. I normally don’t write a bunch of reviews generally speaking. I had to leave thumbs up for their work. A BBB rating and been in business for over a decade."
Piering Project
Piering Project
Piering Project
Crack Repair
Carbon Fiber Straps

+1

28 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Atlas Foundation Solutions, LLC
Atlas Foundation Solutions, LLC
4.5(
160
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving O Fallon, MO and surrounding areas

Approved

In business since 1981

Free estimates

Warranties offered

"Atlas did a fantastic job. Mike accurately diagnosed the problem (a foundation crack hiding behind wood paneling) and patiently explained it to us new homeowners. For the repair itself, he arrived on time, applied epoxy efficiently, and dealt with some unexpected obstacles. (Some flooring needed to be removed to -literally - get to the bottom of the issue.) Our neighbor highly recommended Atlas, and we see why!"
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Water Leak Specialist
Water Leak Specialist
4.6(
45
)
Concrete Foundation - Repair

Serving O Fallon, MO and surrounding areas

Approved

In business since 1998

Free estimates

Customers say: True professional

"Very good service, responsive to inquiry and questions, did the work timely and very thoroughly. Good price for the work performed. Workers were courteous and on time. Highly recommend. Roof repaired and interior drywall repairs"
 drywall damage from leak
 missing shingles
 window well leak
 leak at fireplace
 leak below window

+57

Response time1 day
Recommended by90%of homeowners
Musick House Leveling, LLC
4.9(
29
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - Repair

Serving O Fallon, MO and surrounding areas

Approved

In business since 1987

Free estimates

Credit card accepted

"Eric Musick was very knowledgeable, professional and prompt. He was mindful of our financial resources when recommending repair options. His work was done on time and to specs. He even repaired a few small extra cracks at no additional charge. Nice guy."
Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for AccuLevel, Inc. - Southern/Metro East Illinois
AccuLevel, Inc. - Southern/Metro East Illinois
3.9(
231
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair

Serving O Fallon, MO and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"This company is top notch. They fixed my sagging floor and it now looks beautiful. My house was built n 1902 and can be a challenge at times to work on. They were professional and did the job in less time then they original thought. I am so very pleased with their work. I would hire them again in a minute for any foundation and floor leveling needs. Thank\ you Acculevel!!!!!"
Basement Waterproofing and Drainage Channels
Drainage Channel Install
Dimple Board and Drainage Channel Install
Dimple Board Closeup Example
Cross Section Example Waterproofing Installation

+19

20 neighbors recently requested a quote
Recommended by82%of homeowners
Finishing Touch Landscape Co LLC
4.4(
373
)
Foundation Drainage - Install or Replace

Serving O Fallon, MO and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"Finish Touch gets 5 stars from me. They built us a beautiful looking retaining wall at the rear of our house 4 years ago this month and were the low bidder by far--the bids ranged from over $17,000 to under $3000 for Finishing Touch with several others from 6k to 10k. I waited to post a review until now because build quality of a retaining wall can't be measured until after passage of time. Their wall has held up nearly perfectly over 4 years now so I believe it is justifiable to say it was properly built and the preparatory pre-construction work like ensuring drainage was all done well. On top of doing first rate work at the low price, a few months ago I contacted Mr. Watson about another potential job involving our crumbling and sagging concrete front steps and porch. He spent a good 20 minutes+ explaining we could get 90% of the benefit of redoing them by instead mud jacking them and using polymeric sand to fill a crack. He was right. I unreservedly recommend them."
Paver Patio
Paver Patio
Retaining Wall with Driveway Extention
Paver Patio
Paver Patio

+92

Response time3 days
Response rate100%
13 neighbors recently requested a quote
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Foundation Repair FAQs, answered by experts

When comparing quotes for foundation repair in O'Fallon, be cautious of unusually low estimates, vague repair plans, or high-pressure sales tactics. Trustworthy professionals provide detailed written proposals, explain their methods, and reference local soil conditions. Avoid contractors who skip site visits, won’t discuss cleanup or warranties, or refuse to provide local references. A thorough soil analysis and clear communication are key indicators of reliability.

Helpful?

For foundation repair in O'Fallon, keep a digital level, moisture meter, and crack gauge to monitor foundation cracks and soil movement. Stock hydraulic cement, waterproof sealant, and polyurethane caulk for minor repairs. Downspout extensions and French drain materials help manage water runoff, while a dehumidifier and emergency supplies like sandbags and plastic sheeting are useful for controlling moisture and protecting against unexpected flooding.

Helpful?

To make foundation repair in O'Fallon safer for your family, clearly mark work zones with temporary fencing and communicate boundaries to everyone at home. Create indoor safe spaces away from noise and dust, and try scheduling repairs during school hours. Relocate pets if heavy equipment will be used. Keep windows closed near the work area, run air purifiers, and lock away all tools and materials when not in use.

Helpful?

In O'Fallon, hidden costs during foundation repair often arise from the need for additional soil stabilization due to shifting clay soils, unexpected utility line adjustments, and drainage system upgrades to prevent future water intrusion. Homeowners may also encounter expenses for landscaping restoration, mold remediation from basement moisture, and repairs to plumbing or HVAC systems if foundation cracks or soil movement have caused damage.

Helpful?

Your O'Fallon home is a strong candidate for foundation repair if it sits on stable ground, has accessible crawl spaces or basements, and shows early signs of foundation cracks or minor settling. Homes in neighborhoods with well-documented soil conditions often experience fewer surprises. However, properties near creeks or with extensive tree roots may require a more detailed evaluation to ensure successful repairs.

Helpful?

The O Fallon, MO homeowners’ guide to foundation repairs

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