Sunken driveways, cracked garage floors, uneven sidewalks — slab problems are common throughout St. Charles County, MO due to clay soil movement and erosion beneath slabs. St. Charles Foundation Repair lifts and stabilizes sunken slabs without costly demolition and replacement. Free inspection, same-day estimates.
📞 Free Slab Inspection — (636) 317-5445St. Charles County, MO's clay-heavy soil creates unstable support conditions beneath concrete slabs. When clay dries, it shrinks and creates voids. When wet, it can wash away under slabs through erosion. Poorly compacted fill soil beneath new construction settles over time. Tree roots displace soil. The result in all cases: concrete slabs lose support and begin to sink, crack, and tilt.
Many homeowners assume a sunken slab means expensive replacement. In most cases, it doesn't. Modern slab lifting techniques — mudjacking and polyurethane foam injection — can lift and stabilize slabs quickly, cleanly, and at a fraction of replacement cost.
Mudjacking (also called slabjacking) pumps a cement-soil slurry beneath the sunken slab through small drilled holes. The slurry fills voids and lifts the slab back to its original elevation. Cost-effective for large slabs like driveways and garage floors.
Expanding polyurethane foam is injected through dime-sized holes and expands to fill voids and lift slabs. Faster curing time than mudjacking (walkable within 15 minutes), lighter weight, and minimally invasive. Ideal for interior floors and precision lifts.
Cracks in concrete slabs are routed and sealed with flexible polyurethane sealant to prevent water infiltration, trip hazards, and further deterioration. Interior floor cracks are injected with epoxy for structural bonding.
We repair sunken front stoops, garage floor panels, basement floors, patio slabs, and interior floor sections throughout St. Charles County, MO homes. Same-day service often available.
Sunken driveway panels create drainage problems and trip hazards. We lift and level individual panels without tearing up your entire driveway — typically at 50-70% of replacement cost.
Large voids beneath slabs — from erosion, animal activity, or utility failures — are filled with expanding polyurethane foam before the slab can collapse. Preventative treatment is far cheaper than emergency repair.
| Service | Starting Price |
|---|---|
| Slab Inspection | Free |
| Slab Crack Sealing | From $500 |
| Mudjacking (per panel) | From $500 |
| Polyurethane Foam Lifting | From $800 |
| Full Driveway Leveling | From $2,000 |
| Interior Slab Repair | From $1,500 |
Much less than replacement. Financing available. Call (636) 317-5445 for your free inspection and written estimate.
Don't wait — foundation problems worsen and get more expensive over time. Get your free inspection today.
(636) 317-5445 Schedule Free Foundation Inspection