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Leaking Basement Repair, St. Louis, MO

We Treat Your Home Like Our Own


4.8/5 Rating with 2,000+ Reviews

Your Basement Should Be Clean and Dry. We Can Help You Make That Happen.

Acculevel, Inc. BBB Business Review

What We Do

We deliver expert leaking basement repair in St. Louis, MO, helping homeowners stop water intrusion and protect their foundations for the long term. Our mission is to diagnose the true cause of basement leaks—such as foundation wall cracks, hydrostatic pressure, or aging drainage systems—and fix them with proven solutions. We frequently help homeowners in neighborhoods like South City, Tower Grove, and Dogtown, as well as areas near the Mississippi River and Forest Park, where older homes and heavy rainfall often contribute to basement moisture problems. If your basement is leaking, request a FREE, no-obligation estimate to get lasting peace of mind.
leaking basement

Common Problems

Keeping a basement dry in St. Louis can be difficult due to historic foundations, dense clay soils, and intense rain events. Understanding these challenges can help prevent recurring leaks and structural damage.

Water Intrusion

Heavy rainfall or melting snow can cause basement flooding which result in weakness in the ground beneath your foundation. Foundation sinking, bowing basement walls, and other structural damage can occur as the supporting ground softens. In the process, your’re left with an ideal environment for the growth of mold and mildew.

Biological Growth

Humidity in the soil and air releases destructive water vapor, debris, contaminates, and pollen. This damp air carries mold spores and musty odors, providing the perfect environment for insects and other pests, as well as wood rot. These issues affect your home’s structure and the quality of air in your living spaces.

Bowed Or Leaning Walls

All soil can expand and contract after a heavy rain or drought. When the soil supporting your foundation changes, it can cause your home to shift. During wet weather, water saturates surrounding soil, causing it to swell and push against subterranean walls. This lateral pressure can make basement walls bulge or leak, causing a wet and smelly basement.

How Water Enters Your Home

Basement leaks damage your belongings, produce mold & mildew, and cause extensive damage.
Floor Cove Joint
Floor Cracks
Wall Cracks

How Do I Fix It?

Acculevel installs interior drainage and sump systems that redirect water before it can pressurize your basement. For many homes, our recommended solution is the Fast Track perimeter drainage system paired with a sump pump.

Redirection With Fast Track

Fast Track is a low-profile interior drainage channel set on or alongside the footing at the cove joint (where the wall meets the floor). It collects water from wall seepage, the cove joint, and under-slab migration, then routes it to a sump pump for safe discharge.

How Fast Track Is Installed

  • A narrow strip of concrete is cut along the perimeter to expose the top of the footing.
  • If the foundation is a block, small weep holes are drilled in the bottom course to relieve trapped water.
  • Pre-formed Fast Track sections are placed on/along the footing and connected to the sump basin; a wall liner or dimple board is integrated so moisture drains straight into the channel.
  • The trench is capped with new concrete flush to the floor, the sump lid is sealed, and the pump and discharge are tested.

Water Removal with Sump Pump

All Acculevel waterproofing systems drain into a top-of-the-line sump pump system and include safeguards against power outgages and pump failures. It is extremely important to have a second battery-operated pump in the sump liner in case of mechanical or power failure. Acculevel battery back ups are dependable and flexible.

Leaky Basement Repair FAQs

How do I know if I need waterproofing?

Signs include water at the floor cove joint, wall/floor cracks, peeling paint, musty odors, or visible biological growth. An inspection confirms the source.

What’s the long-term fix?

Interior drainage (Fast Track) relieves hydrostatic pressure and directs water to a sealed sump system with optional battery backup. Crack sealing is often part of the plan.

Will sealing cracks alone stop the leak?

Usually not. Cracks are symptoms; relieving pressure and providing a drainage path prevents water from simply finding a new route.

How long does it take?

Many basements are completed in 1–2 days. We protect floors, control dust, and clean up after work.
Common signs include cracks in walls or floors, sticking doors or windows, and uneven floors. If you notice these issues, schedule a free inspection to identify the cause and recommended solution.
Most projects can be completed in a few days. The exact timeline depends on the severity of the issue and the type of repair. Our team will give you a clear timeline during your consultation.
Yes. We partner with leading financing providers so you can repair your home now and pay over time. Ask about our flexible payment plans during your free inspection.
We minimize disruption whenever possible. Many repairs are completed from the exterior, and our crews respect your property, leaving it clean once the job is finished.

Do you offer warranties?

Yes. Our waterproofing systems carry a life of the structure water drainage transferable warranty.

Our Completed Projects in St. Louis, MO

Take a look through our recently completed projects to see real foundation repair and basement waterproofing work. Each project shows how Acculevel approaches planning, installation, and respect for your home.

Curtis needed a solution for water seeping into his basement through limestone foundation walls in the 63110 area. Our team implemented effective waterproofing measures to ensure no more leakage problems. This extensive project, valued at approximately $12,000, will keep Curtis' basement secure from future water intrusions.

February 12, 2026

Near St. Louis, MO

Water from the yard was flooding external basement stairs at 5401 Arsenal St, St. Louis, MO 63139. Our team implemented a drainage solution to redirect water away from the concrete that previously collected rainwater. We ensured that existing drains are now properly covered to prevent clogging. This project, valued at approximately $9,099, secures the basement from future water-related issues.

February 11, 2026

Near St. Louis, MO

Successfully completed a waterproofing project for Himanshu in the 63129 area. We focused on securing the east wall of the addition, ensuring moisture doesn't penetrate and cause damage. The job included installing necessary waterproofing measures to keep the area dry and stable, with a project cost of about $3,900.

February 12, 2026

Near St. Louis, MO

We've addressed a water intrusion issue in Wynessa's basement in zip code 63138. The team installed a waterproofing system, including perimeter drainage, to prevent puddling on the floor. With an approximate cost of $6,400, this project ensures long-term protection against moisture and enhances basement usability.

February 12, 2026

Near St. Louis, MO

Omar's basement was subject to severe water intrusion especially where the wall meets the floor. Our team implemented a thorough waterproofing strategy, installing a reliable drainage system to tackle the seepage issues noted during heavy rains. This project, situated in zip code 63105, was executed at an approximate cost of $4,570, ensuring Omar's basement remains dry and secure.

February 12, 2026

Near St. Louis, MO

We tackled a challenging waterproofing project to address water intrusion in Brianna's basement. Our team installed a robust drainage system to manage high humidity and moisture, focusing on the brick flooring and stone walls for enhanced protection. The comprehensive waterproofing effort is approximately priced at $23,361, ensuring long-term peace of mind for the homeowner.

February 11, 2026

Near St. Louis, MO

Recently addressed a challenging water intrusion issue in Charles's basement with a rock/stone foundation in the 63104 area. Focused on sealing and waterproofing the affected corner, providing a reliable solution to keep the space dry and secure. This essential service was delivered at an approximate cost of $4,780.

February 12, 2026

Near St. Louis, MO

Just wrapped up a waterproofing project in Mark's basement located at zip code 63119. We focused on sealing the area where the floor meets the wall, using a specialized waterproofing membrane. Additionally, we installed a new sump pump system to ensure effective drainage, safeguarding the space from potential water intrusion. The project's estimated cost is around $4,400.

February 12, 2026

Near St. Louis, MO

Terri in 63116 needed a waterproofing solution for her basement due to water intrusion during heavy rains. Our team tackled this by installing a full drainage system and sealing potential leak points effectively. With the work done, her basement will now stay protected from excessive moisture for an estimated price around $3,800.

February 12, 2026

Near St. Louis, MO

Get a Free On-Site Consultation & Estimate

Start with a Professional Inspection
We want to make your repair process simple and stress-free. When you fill out our contact form, a team member will reach out within 48 hours. We'll ask about your home’s symptoms and schedule an on-site inspection to assess your needs and walk you through next steps.
Home Advisor Approved
Submit the form below or call today! One of our experienced project managers will visit your home for a FREE 30 – 60 minute inspection!
Fast, no‑obligation inspections
Honest diagnosis and repair plan
Experienced local technicians
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I give consent for Acculevel, Inc. to collect my contact details and text or email me concerning this request and future company updates, appointment reminders, and customer service communications. Messaging frequency varies based on requested service. Message and data rates may apply.

I also agree to the Privacy Policy and Terms and Conditions. Text "STOP" to cancel at any time. Text "HELP" for customer assistance.
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Zip Codes Served
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Years in Business
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Team Members

Top Rated Leaking Basement Repair Experts

Permanent solutions backed by warranties and the best customer service in the industry.

Acculevel is your local foundation repair experts, servicing Indiana, Kentucky, Illinois, Michigan, Ohio, Missouri, Wisconsin, and Iowa, as well as Western and Central Pennsylvania and Virginia, portions of West Virginia, southeastern Minnesota, eastern Nebraska, and northeast Arkansas.

We strive to provide the best service that is both affordable and high-quality. If you have any questions about our foundation repair services, contact our team to talk with a project advisor.

Our Guarantee

Solution

We provide permanent solutions using the most technologically advanced repairs to help keep your home on a safe foundation.

Warranties

Our company always back our work with lifetime warranties and the best customer service in the industry!

Estimates Before

We will not do any unnecessary work after your inspection and estimate is. We encourage homeowners to get estimates before hiring.

Acculevel Service Areas

See What Your Neighbors Think

Real reviews from homeowners on Google
“I was impressed by the level of detail in the consultation. The representative was knowledgeable and friendly, making the process stress-free.”
— Zach K.
“The team at Acculevel was professional and thorough. They answered all my questions and provided a clear plan for my project.”
— Danielle R.
“Acculevel exceeded my expectations. The appointment was informative, and I felt confident in their expertise.”
— Jeremy B.

Don't wait – protect your home now

Foundation and waterproofing issues only get worse over time. Enter your ZIP code to see if you're in our service area and schedule a free inspection.
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