Storage Tank Slab Repair
Concrete slabs that support water tanks or storage tanks must remain stable and level at all times. When these slabs settle or shift, it can place stress on the tank structure, create uneven load distribution, and increase the risk of structural problems. Even small changes in slab elevation can affect the safety and performance of the tank system.
STL Polyjack provides concrete lifting and stabilization for water tanks and storage tank slabs using advanced polyurethane foam injection. We lift and stabilize the slab from underneath—no removal required and no need to shut down your operations. Most projects are completed quickly, often saving up to 50% compared to replacement while restoring proper support beneath the structure.
Why Water Tank Slabs Sink
Water tanks and storage tanks place significant weight on the concrete slabs that support them. Over time, the soil beneath the slab can shift or erode, causing the concrete to settle.
Common causes include:
- Soil erosion beneath the slab
- Voids forming under the concrete
- Poor soil compaction during construction
- Heavy structural loads over time
- Water infiltration weakening the soil
When the ground beneath the slab loses support, the concrete can begin to sink or tilt. Concrete lifting helps restore proper support by filling voids and stabilizing the soil underneath.
Signs Your Tank Slab Needs Leveling
Settlement around water tanks or storage tanks can develop gradually. Facility managers may begin to notice changes in the slab or surrounding concrete surfaces.
You may need slab leveling if you notice:
- The tank slab settling or tilting
- Cracks forming in the supporting concrete
- Uneven slab surfaces around the tank
- Gaps forming beneath the slab edges
- Water pooling near the tank base
- Visible soil movement or voids near the structure
Addressing these issues early helps prevent further settlement and protects the structure above.
Sometimes slab settlement around storage tanks can be connected to other soil stability problems on the property. Saint Louis Polyjack also provides soil stabilization, warehouse floor lifting, and factory floor leveling for commercial facilities. In cases where empty spaces form beneath large slabs, void filling may also be used to restore support and prevent additional settlement.
Free Concrete Leveling Estimate
Customers can also send photos of the problem area for a faster quote.
Why Property Owners Choose Saint Louis Polyjack
Serving St. Louis, Sunset Hills, Fenton, Kirkwood, Ballwin, Chesterfield, and surrounding communities.
Our Fix: Polyurethane Tank Slab Leveling
Saint Louis Polyjack uses a polyurethane foam injection process to lift and stabilize tank slabs safely and efficiently. Instead of replacing the concrete or interrupting facility operations, our method restores support beneath the slab by filling voids and strengthening the soil below.
Our process works in three simple steps:
1. Drill Small Access Holes
Small holes are drilled in specific locations of the slab to reach the empty space beneath the concrete.
2. Inject Expanding Polyurethane Foam
High-density foam is injected under the slab. The material expands to fill voids, stabilize the soil, and carefully lift the concrete back into position.
3. Patch the Holes and Finish the Repair
Once the slab is stabilized and properly supported, the holes are patched neatly and the repair is completed.
Benefits of Tank Slab Leveling
Polyurethane concrete lifting provides several advantages for industrial and commercial facilities.
Some of the key benefits include:
- Save up to 50% compared to replacing the slab
- Stabilizes heavy-load concrete for tanks and equipment
- Fast repairs that keep your facility up and running
- No major disruption to daily operations
- Lightweight material that won’t add stress to the soil
- Long-term stabilization beneath the slab
Instead of removing and replacing the slab, polyurethane lifting restores the existing concrete while addressing the problem underneath.
Why Choose STL Polyjack
When concrete starts to sink or settle, choosing the right contractor matters. STL Polyjack brings over a decade of experience and more than 1,200 completed lifts across the St. Louis area. We focus on fixing the root cause—not just the surface—using advanced polyurethane foam injection to lift and stabilize concrete without the cost and disruption of replacement. When you work with our team, you can expect:
- Over a decade of hands-on experience
- 1,200+ concrete lifting projects completed locally
- Polyurethane foam designed for long-term support
- Minimal disruption to your home or business
- Completed in hours, not days, with same-day use
- Honest evaluations and straightforward recommendations
- Repairs backed by a 5-year warranty
Whether the project involves a residential driveway, uneven sidewalk, patio, commercial slab, or structural repair, our goal is to deliver a repair that restores safety, stability, and confidence in your concrete surfaces.
FAQs – Water Tanks & Storage Tank Slabs
Clear answers about leveling tank foundations and stabilizing heavy-load concrete slabs.
In many cases, yes. Polyurethane lifting allows technicians to stabilize the soil and fill voids beneath the slab without removing the entire structure. The process is designed to be minimally disruptive to facility operations.
Project timelines vary depending on the size of the slab and structural conditions, but polyurethane lifting is typically much faster than replacing the concrete.
Settlement often occurs due to soil erosion, heavy structural loads, or voids beneath the concrete. Stabilizing the soil with soil stabilization can help prevent further movement.
Yes. The high-density foam expands beneath the slab and forms a strong support structure that helps stabilize heavy loads.
Yes. The same process can be used to repair warehouse floors, factory floors, and parking lots that have settled due to soil movement.
Empty spaces beneath the slab can be filled using void filling to restore support and prevent additional settlement.
Yes. Saint Louis Polyjack provides polyurethane lifting solutions designed for long-term support and stability.
Trusted by Leading Businesses
Areas We Serve
STL Polyjack proudly serves homeowners, businesses, and property managers across the St. Charles and St. Louis area. With over a decade of experience, we provide polyurethane concrete leveling, lifting, and structural repair solutions that restore sinking concrete without the cost of replacement. From driveways and sidewalks to warehouse floors and parking lots, we keep properties safe, level, and stable.
Serving St. Louis & Surrounding Communities
- St. Charles, MO
- St. Louis, MO
- Sunset Hills, MO
- Fenton, MO
- Kirkwood, MO
- Webster Groves, MO
- Ballwin, MO
- Chesterfield, MO
- Crestwood, MO
- Arnold, MO
- Manchester, MO
- Des Peres, MO
- Ellisville, MO
- Town and Country, MO
- Oakville, MO
- Affton, MO
- Clayton, MO
- Maryland Heights, MO
- Bridgeton, MO
- Florissant, MO
- University City, MO
If you have sinking or uneven concrete around your property, we can evaluate the issue and recommend the best solution.
We offer free estimates, and you can even send photos for a fast quote.
About Saint Louis Polyjack
Saint Louis Polyjack specializes in polyurethane concrete leveling, lifting, and structural repair throughout St. Louis, MO and surrounding communities. We raise and stabilize sinking driveways, sidewalks, patios, pool decks, warehouse floors, and more using advanced poly foam technology.
Our process is fast, clean, and long-lasting — backed by a 5-year warranty.
Office Location : 12951 Gravois Rd. Ste. 100 St. Louis, MO 63127
Uneven Concrete? Don’t Replace It — Lift It.
Get a Free Estimate Today.
Serving St. Charles, St. Louis, Sunset Hills, Fenton, Kirkwood, Webster Groves, Ballwin, Chesterfield, Crestwood & Arnold.
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