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Family‑Owned Since 1996
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4.8/5 Rating with 2,000+ Reviews

What issue are you experiencing?

Cracks, water intrusion, crawl space moisture, settlement, etc.

Flooded 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 specialize in flooded basement repair in St. Louis, MO, offering customized solutions for homes throughout the city and surrounding suburbs. Many homes in neighborhoods such as Webster Groves, South City, and University City were constructed with older foundation systems that were not designed to manage today’s increased rainfall patterns. Additionally, properties near the Mississippi River, River Des Peres, and low elevation areas often face rising groundwater that forces moisture into basement spaces.

Because of this, our approach focuses on both stopping active water intrusion and preventing future flooding. From evaluating foundation walls to improving basement drainage, we tailor each solution to the specific needs of St. Louis homes. Schedule your FREE flooded basement repair estimate in St. Louis to safeguard your basement and restore peace of mind.

Common Problems

Basement flooding in St. Louis is often caused by saturated soil, foundation settlement, and outdated waterproofing systems. After prolonged rainfall, hydrostatic pressure can build against basement walls, forcing water through cracks and porous concrete. In addition, older neighborhoods frequently deal with deteriorated footing drains and poor surface drainage, which increases the risk of basement leaks. Identifying these vulnerabilities early helps prevent repeated flooding and costly damage.

A flooded basement is never something homeowners should have to accept. We provide trusted flooded basement repair in St. Louis, Missouri, helping homeowners prevent water intrusion caused by heavy storms, river influenced groundwater, and shifting soil conditions.

 

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.

Flooded Basement Repair FAQs

What’s causing my basement to flood in this area?

Clay soils and heavy storms create hydrostatic pressure. Water enters at the floor cove joint, wall cracks, and slab cracks.

What’s the permanent fix—do I need exterior excavation?

Usually no. We install an interior Fast Track system with a sealed sump and optional battery backup to relieve pressure and move water out safely.

How long does installation take and how should I prepare?

Many jobs finish in 1–2 days. Please move stored items 2–3 feet from the walls; we handle protection and cleanup.

How much does repair cost?

Depends on drainage footage, sump configuration, and any wall/crack repair. We provide a free on-site inspection and written, no-pressure quote.

Are the warranties transferable?

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

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.

We've successfully tackled a basement water intrusion issue by reinforcing the foundation with waterproofing solutions. Addressing the cracks that were letting moisture in was a priority, and we've installed a drainage system to effectively manage water direction. The investment for this thorough repair and protection service is around $12,700, providing much-needed peace of mind for Tabitha.

March 6, 2026

Near St. Louis, MO

Recently completed a job to level a sinking concrete patio that was moving toward the foundation. Slabjacking was used to lift and stabilize the surface, ensuring structural integrity and safety. The repair was vital in preventing further sinking and potential water pooling issues. This service was provided for Anthony within the 63123 area at an approximate cost of $2,500.

March 6, 2026

Near St. Louis, MO

We recently tackled an issue of cracking and pooling water on a property. The driveway and walkway had multiple cracks, which we addressed by performing slabjacking to realign and stabilize the surfaces. Additionally, the drainage was improved to prevent water pooling around the home. This essential repair was completed to aid in preventing further structural damage, with an approximate cost of $8,800.

March 6, 2026

Near St. Louis, MO

We addressed several significant cracks on the front of Carmen's house, which were problematic as they allowed animals entry into the basement. The project included sealing a noticeable crack under the porch foundation to secure the structure. Our repairs are aimed at enhancing the home's safety and integrity, with an overall project cost of approximately $4,000.

March 6, 2026

Near St. Louis, MO

Addressed structural issues in Sheree's home, tackling foundation cracks and an uneven feel. The project also involved resolving water intrusion problems. These repairs were crucial for restoring stability and preventing future water damage. The work was completed at an approximate cost of $3,100.

March 6, 2026

Near St. Louis, MO

We took on a challenging waterproofing project for a church facing water intrusion in its basement. The work involved identifying sources of moisture and sealing problematic areas to prevent future leaks. The job was quite extensive, reflecting an investment of approximately $37,000.

March 6, 2026

Near St. Louis, MO

Jaime's property had standing water in the yard, prompting the need for an effective outside drainage solution. Our team installed drainage systems to combat water accumulation and prevent future issues. Inside the basement, we implemented additional waterproofing measures to safeguard against potential moisture ingress. The estimated cost of this comprehensive job was approximately $6,900.

March 6, 2026

Near St. Louis, MO

We tackled a major structural repair on a concrete basement wall displaying horizontal cracks that were allowing water to seep in. To address this, we reinforced the wall with support beams to ensure stability and waterproofed it to prevent future leaks. Additionally, exterior groundwork was carried out to redirect water flow away from the foundation, maintaining the property's integrity. This project for Dane in the 63127 area was priced at roughly $13,594, reflecting the comprehensive nature of the job.

March 5, 2026

Near St. Louis, MO

Installed a surface drain to manage water flow effectively around the property. This was necessary due to the home's position at the base of a hill. The new system is designed to route water away from critical areas, reducing the risk of pooling during heavy rains. The entire project in the 63129 area was carried out for approximately $3,000.

March 5, 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.
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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 Flooded Basement Repair Experts

Regardless of the level of flooding you have in your basement, we’re here to help.

Acculevel is your local flooded basement 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’ll use all the tools and expertise we have to make sure your problem never comes back. Our service is always fair, affordable and high-quality.

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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