
Get matched with top basement waterproofing pros in O Fallon, MO
There are 8 highly-rated local basement waterproofing pros.
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*The Angi rating for Basement Waterproofing companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
*The HomeAdvisor rating for Basement Waterproofing companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
Last update on October 26, 2025
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Atlas Foundation Solutions, LLC
Atlas Foundation Solutions, LLC
Atlas Foundation Solutions, LLC provides long-lasting solutions for all your foundation repair needs and waterproofing problems serving the St. Louis County, Mo.,Saint Charles County, MO., Jefferson County, MO., and surrounding areas. Atlas Foundation Solutions is located in Fenton, MO. Our experienced team will effectively and efficiently provide crack repairs, install drainage solutions, and increase the structural stability of your homes foundation. We specialize in installing foundation piers for both poured & stone foundations. A family owned business that will keep it more affordable and personal with your family in mind!
"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!"
Alexander S on June 2022
Atlas Foundation Solutions, LLC provides long-lasting solutions for all your foundation repair needs and waterproofing problems serving the St. Louis County, Mo.,Saint Charles County, MO., Jefferson County, MO., and surrounding areas. Atlas Foundation Solutions is located in Fenton, MO. Our experienced team will effectively and efficiently provide crack repairs, install drainage solutions, and increase the structural stability of your homes foundation. We specialize in installing foundation piers for both poured & stone foundations. A family owned business that will keep it more affordable and personal with your family in mind!
"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!"
Alexander S on June 2022

Foundation Recovery Systems
Foundation Recovery Systems
Foundation Recovery Systems, founded in 1992, is a subsidiary of Groundworks, a family of companies that offers superior, proven solutions for your foundation repair, structural repair, crawl space encapsulation, dehumidification, and concrete leveling needs. They currently maintain offices in Kansas City, Moberly, Springfield, and St Louis. Foundation Recovery Systems is a recognized accredited member of the Better Business Bureau and devotes its years of experience, industry knowledge and specialized training to help customers protect their homes or commercial buildings from water damage, concrete sinking, and foundation failure.
"As far as we can tell, the work was effective at stabilizing our foundation, and the on-site crew led by Luke was great, informing us of their progress along the way. However, we expressed in advance our concern about protecting some of our landscaping. We were assured the crew would have boards to cover landscaping on which removed dirt would be piled. This turned out not to be the case. I’ve had quite a bit of expense and labor to restore landscaping that was damaged during the work. This damage could have been avoided. Foundation Recovery sends out $500 coupons to advertise for their work. My attempts to contact Joe and FRS to honor even a part of the $500 coupon to help defray my landscaping costs have gone unanswered. Our salesperson, Joe, was not present during the work and has not been responsive to our followup inquiries. We are very disappointed in the poor customer service from Foundation and its representatives. I cannot recommend this company based on their failure to address our up-front concerns, lack of response to our followup requests, and the false advertising that is associated with the coupons."
Jerry K on September 2025
Foundation Recovery Systems, founded in 1992, is a subsidiary of Groundworks, a family of companies that offers superior, proven solutions for your foundation repair, structural repair, crawl space encapsulation, dehumidification, and concrete leveling needs. They currently maintain offices in Kansas City, Moberly, Springfield, and St Louis. Foundation Recovery Systems is a recognized accredited member of the Better Business Bureau and devotes its years of experience, industry knowledge and specialized training to help customers protect their homes or commercial buildings from water damage, concrete sinking, and foundation failure.
"As far as we can tell, the work was effective at stabilizing our foundation, and the on-site crew led by Luke was great, informing us of their progress along the way. However, we expressed in advance our concern about protecting some of our landscaping. We were assured the crew would have boards to cover landscaping on which removed dirt would be piled. This turned out not to be the case. I’ve had quite a bit of expense and labor to restore landscaping that was damaged during the work. This damage could have been avoided. Foundation Recovery sends out $500 coupons to advertise for their work. My attempts to contact Joe and FRS to honor even a part of the $500 coupon to help defray my landscaping costs have gone unanswered. Our salesperson, Joe, was not present during the work and has not been responsive to our followup inquiries. We are very disappointed in the poor customer service from Foundation and its representatives. I cannot recommend this company based on their failure to address our up-front concerns, lack of response to our followup requests, and the false advertising that is associated with the coupons."
Jerry K on September 2025

Quacker's Waterproofing & Basement Repair, LLC
Quacker's Waterproofing & Basement Repair, LLC
Quacker's Waterproofing & Basement Repair has been family owned and operated since 2001. No subcontractors or commissioned sales people are used. Cost is determined by the job. Due to our experience installing waterproofing systems, fixing foundations as well as our Radon testing and mitigation experience gives us the skill sets to install Radon resistance waterproofing systems. Most of our competitors don't have this combination of skill sets there before may waterproofing systems that are installed can potentially contribute to elevated radon levels in their customer's home. We can solve most foundation/basement problems as well as improve our clients indoor air quality which is a very high priority for us. It is our commitment and responsibility to insure our customers have healthy homes and we are do nothing to compromise that. We are not tied to or required to use any propriety systems or products that many companies are vested in. We use the systems and products that we feel provide the best solution for our client's problem. For customers who want a more finished look than a normal crack injection, we offer a special surface seal that can be removed from the surface of the wall after a crack is injected leaving only the repaired crack line visible. We can also paint the basement walls to make both crack repairs and carbon fiber repairs much less visible. In addition to radon testing and mitigation we really are positioned to be a one stop shop. There are several brand name products and systems we use on a regular basis. "Fortress Stabilization" carbon fiber wall stabilization products, "Stabilizer" top and bottom adjustable I-beam brackets used with vertical I-beams for wall stabilization, and "Kryton" crystalline waterproofing products used when crack injection and other waterproofing methods will not be effective, We also use "RadonAway" radon mitigation fans for all of our radon mitigation system installation. Due to our experience repairing foundation wall cracks many times we can provide an accurate repair price over the phone with just a good discription from the client or a clear picture of the crack.
"it went fine, he came to see the problem & a week later he fixed it. water is no longer coming in."
Kathleen B on August 2020
Quacker's Waterproofing & Basement Repair has been family owned and operated since 2001. No subcontractors or commissioned sales people are used. Cost is determined by the job. Due to our experience installing waterproofing systems, fixing foundations as well as our Radon testing and mitigation experience gives us the skill sets to install Radon resistance waterproofing systems. Most of our competitors don't have this combination of skill sets there before may waterproofing systems that are installed can potentially contribute to elevated radon levels in their customer's home. We can solve most foundation/basement problems as well as improve our clients indoor air quality which is a very high priority for us. It is our commitment and responsibility to insure our customers have healthy homes and we are do nothing to compromise that. We are not tied to or required to use any propriety systems or products that many companies are vested in. We use the systems and products that we feel provide the best solution for our client's problem. For customers who want a more finished look than a normal crack injection, we offer a special surface seal that can be removed from the surface of the wall after a crack is injected leaving only the repaired crack line visible. We can also paint the basement walls to make both crack repairs and carbon fiber repairs much less visible. In addition to radon testing and mitigation we really are positioned to be a one stop shop. There are several brand name products and systems we use on a regular basis. "Fortress Stabilization" carbon fiber wall stabilization products, "Stabilizer" top and bottom adjustable I-beam brackets used with vertical I-beams for wall stabilization, and "Kryton" crystalline waterproofing products used when crack injection and other waterproofing methods will not be effective, We also use "RadonAway" radon mitigation fans for all of our radon mitigation system installation. Due to our experience repairing foundation wall cracks many times we can provide an accurate repair price over the phone with just a good discription from the client or a clear picture of the crack.
"it went fine, he came to see the problem & a week later he fixed it. water is no longer coming in."
Kathleen B on August 2020

AccuLevel, Inc. - Belleville
AccuLevel, Inc. - Belleville
Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.
"Best quote from the the companies I contacted. Fast job completion."
Alex B on December 2022
Acculevel is your foundation repair expert, serving Indiana, Illinois, Michigan, Kentucky, and Ohio with over 20 years of experience. Our repairs come with a lifetime warranty. Acculevel begins by evaluating your entire foundation system, checking your property for the signs and causes of foundation failure. From foundation & crawlspace repair to waterproofing & encapsulation systems, Acculevel can help you protect your home-- the most valuable investment you'll ever make.
"Best quote from the the companies I contacted. Fast job completion."
Alex B on December 2022

Raising Solutions LLC
Raising Solutions LLC
Raising Solutions is a local, family-owned and operated Foundation Repair, Concrete Leveling(polyjacking), and Basement Waterproofing company. Raising Solutions is committed to resolving your concerns and protecting your largest investment, YOUR HOME. Our field reps will closely evaluate your repairs, and work closely with our office to custom tailor each repair; ensuring not only the correct repair is made, but the CORRECT materials are being used! Allowing us to provide YOU with industry leading warranties!
Raising Solutions is a local, family-owned and operated Foundation Repair, Concrete Leveling(polyjacking), and Basement Waterproofing company. Raising Solutions is committed to resolving your concerns and protecting your largest investment, YOUR HOME. Our field reps will closely evaluate your repairs, and work closely with our office to custom tailor each repair; ensuring not only the correct repair is made, but the CORRECT materials are being used! Allowing us to provide YOU with industry leading warranties!

Spartan Ram Jack St. Louis
Spartan Ram Jack St. Louis
Free inspections, detailed estimates and you don’t pay us until the job is complete! At Spartan Ram Jack® we are on a mission to not only offer exceptional products and engineer-crafted solutions but friendly and honest service that our customers can trust. We offer industry-leading lifetime transferrable warranties because we have the best products available. We specialize in foundation repair, basement waterproofing, Poly-jacking, Sum Pumps, drainage improvements, bowing walls and differential settlement in both commercial and residential buildings. Our projects are completed on time and within budget. With over 40 years of foundation repair experience and a Super Service Award winner for the last 10 YEARS, Spartan Ram Jack leads the industry in the Midwest. We have offices in the Kansas City, St. Louis, Wichita, Springfield, and Columbia areas and are recognized for professional, honest, and thorough repairs. We have years of experience solving the foundation problems unique to the Midwestern climate. Our quality workmanship has earned us a reputation as one of the area’s most reliable & honest contractors.
"I buy and rehab to keep several houses a year and Ram Jack is my go to foundation partner. Their prices are always fair but more importantly they keep me coming back by their service and the way they stand by their work."
Michael O on April 2023
Free inspections, detailed estimates and you don’t pay us until the job is complete! At Spartan Ram Jack® we are on a mission to not only offer exceptional products and engineer-crafted solutions but friendly and honest service that our customers can trust. We offer industry-leading lifetime transferrable warranties because we have the best products available. We specialize in foundation repair, basement waterproofing, Poly-jacking, Sum Pumps, drainage improvements, bowing walls and differential settlement in both commercial and residential buildings. Our projects are completed on time and within budget. With over 40 years of foundation repair experience and a Super Service Award winner for the last 10 YEARS, Spartan Ram Jack leads the industry in the Midwest. We have offices in the Kansas City, St. Louis, Wichita, Springfield, and Columbia areas and are recognized for professional, honest, and thorough repairs. We have years of experience solving the foundation problems unique to the Midwestern climate. Our quality workmanship has earned us a reputation as one of the area’s most reliable & honest contractors.
"I buy and rehab to keep several houses a year and Ram Jack is my go to foundation partner. Their prices are always fair but more importantly they keep me coming back by their service and the way they stand by their work."
Michael O on April 2023
Signature Plumbing
Signature Plumbing
Our plumbers are dedicated to offering prompt, friendly and professional plumbing services in the St. Louis area. We understand that plumbing problems and emergencies can be stressful, so our goal is to provide our customers with high-quality plumbing work. We have been serving the Greater St. Louis area since 2011, and every year we focus on providing better service than the last. If you are in need of a local plumber, our contractors are available 24/7 for your plumbing needs. If you need a plumbing contractor in St. Louis, MO, call 636-742-2533 or 314-879-4093 to see how we can take care of your plumbing needs today!
Our plumbers are dedicated to offering prompt, friendly and professional plumbing services in the St. Louis area. We understand that plumbing problems and emergencies can be stressful, so our goal is to provide our customers with high-quality plumbing work. We have been serving the Greater St. Louis area since 2011, and every year we focus on providing better service than the last. If you are in need of a local plumber, our contractors are available 24/7 for your plumbing needs. If you need a plumbing contractor in St. Louis, MO, call 636-742-2533 or 314-879-4093 to see how we can take care of your plumbing needs today!

Royal Pressure
Royal Pressure
Royal Pressure is an independently owned company that offers a wide range of services for Commercial and Residential needs. Our company is committed to providing our clients with the highest quality of service.
Royal Pressure is an independently owned company that offers a wide range of services for Commercial and Residential needs. Our company is committed to providing our clients with the highest quality of service.

HELITECH St. Louis
HELITECH St. Louis
Helitech is a family, locally-owned specialty contractor that provides waterproofing, foundation repair, & concrete repair services to homeowners across a 4 state region. Services include basement & crawlspace waterproofing & encapsulation, complete foundation repair - piering, wall anchoring, & crack repair, as well as concrete leveling / mudjacking, dehumidifiers, sump pumps, & yard drainage. We service the greater Quad Cities and Southeastern Iowa region including Davenport, Moline, Rock Island, Bettendorf, Galesburg, Monmouth, Iowa City, Cedar Rapids, North Liberty, and everywhere in between out of our facility in Rock Island. Our Helitech Promise is to provide the highest quality products and finest service and to stand by our work for the life of your home. We have been serving the area for 5 decades strong and our longevity speaks to our reliability and commitment to excellence.
"Went very smoothly"
Donna C on October 2022
Helitech is a family, locally-owned specialty contractor that provides waterproofing, foundation repair, & concrete repair services to homeowners across a 4 state region. Services include basement & crawlspace waterproofing & encapsulation, complete foundation repair - piering, wall anchoring, & crack repair, as well as concrete leveling / mudjacking, dehumidifiers, sump pumps, & yard drainage. We service the greater Quad Cities and Southeastern Iowa region including Davenport, Moline, Rock Island, Bettendorf, Galesburg, Monmouth, Iowa City, Cedar Rapids, North Liberty, and everywhere in between out of our facility in Rock Island. Our Helitech Promise is to provide the highest quality products and finest service and to stand by our work for the life of your home. We have been serving the area for 5 decades strong and our longevity speaks to our reliability and commitment to excellence.
"Went very smoothly"
Donna C on October 2022

Jacks of all Trades
Jacks of all Trades
Handy man services including but not limited too: flooring roofing household repairs installation of electronics hauling and clean up painting tile installation drywall installation kitchen and bathroom installation furniture reupholstering We provide fast and friendly services to accommodate your needs from home to business repairs!
Handy man services including but not limited too: flooring roofing household repairs installation of electronics hauling and clean up painting tile installation drywall installation kitchen and bathroom installation furniture reupholstering We provide fast and friendly services to accommodate your needs from home to business repairs!
The O Fallon, MO homeowners’ guide to basement waterproofing services
From average costs to expert advice, get all the answers you need to get your job done.

Sump pump replacement costs depend on the type of unit you have and the cost of labor, which varies by region. Read on to find out more about what to expect.

A variety of factors can affect your total crawl space encapsulation cost. Here’s a breakdown of the cost of this project, whether you hire a pro or DIY.

Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.

Keeping your crawl space vents open or closed largely depends on the season, moisture, and existing ventilation. Learn why weather is a major factor.

When your sump pump is not working, there are a few common culprits. Use this guide to discover everything you need to know about sump pump troubleshooting.

You may be concerned if you find your sump pump running constantly after heavy rainfall. Read up on possible reasons why your sump pump won’t shut off.
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