Concrete Leveling in Kansas City
Polyjacking for Uneven Driveways, Sidewalks, Patios, and Garage Floors
Concrete leveling brings sunken or uneven slabs back to their proper elevation. KC MudJack uses polyurethane foam — the modern method that replaced cement-based mudjacking.
Quick Answer
What Concrete Leveling Means
Concrete leveling is the process of restoring a sunken or uneven slab to a flat, uniform position that drains the way it was originally designed. The “leveling” refers to the result — a properly graded slab.
The modern method is polyjacking — polyurethane foam injection. KC MudJack uses polyurethane systems exclusively because they outperform cement-based mudjacking in Kansas City soil conditions.
Polyurethane Foam
Lightweight, fast cure, precise control.
No Cement
We don't install slurry-based methods.
Same-Day Use
15–30 minutes back in service.
15–30 Min
Same-hour use after the lift.
1/10th Weight
Far lighter than cement slurry.
5/8" Ports
Small holes, patched flush.
Long-Term
Outlasts cement-based lifting in clay.
What We Level
Common Concrete Leveling Applications
Driveways
Pitching toward house, dropped at the apron, settled toward garage.
Sidewalk Panels
Settled at different heights, creating trip hazards.
Patios & Pool Decks
Slabs that dropped on one side, no longer drain correctly.
Garage Floors
Sloping toward the door, often from foundation backfill settlement.
How We Level Concrete
Lighter Material, Better Precision, Less Downtime
Inspect the slab. Plan the lift based on geometry and settlement. Drill ports (about 5/8″). Inject two-part polyurethane resin beneath the slab. Monitor and adjust as the slab rises in real time. Patch and clean. Same-day use.
Whole process is usually 1–3 hours for a typical residential slab.
Why Polyurethane Over Cement Slurry
A Better Method, Plainly Compared
Polyurethane foam weighs roughly 1/10th of cement slurry. Cures in minutes, not days. Resists moisture and won’t wash out. Allows precise lift control. Stabilizes weak soil instead of overstressing it.
Cement-based mudjacking can level concrete too — but in Kansas City clay, the lighter material consistently outlasts the heavier one.
Concrete Leveling Cost
Long-Term Stability for Sunken Concrete
Sidewalk panels: $700–$1,000. Driveways: $1,000–$2,200. Patios: $900–$2,000. Garage floors: $1,200–$2,500. Multiple slabs: $2,000–$3,000+.
Almost always less than half of full replacement cost. Free on-site inspection, firm quote.
Concrete Leveling FAQs
The most common questions about concrete leveling in Kansas City.
- Lightweight material that will not overload weak soils
- Fast cure times, often usable in 15 to 30 minutes
- High lift precision for cleaner leveling results
- Moisture-resistant support for long-term performance
When We Won't Recommend Leveling
Honest Cases for Replacement
Severe Cracking
If the slab is shattered, structurally compromised, or has multiple deep cracks, lifting alone won’t fix it. We’ll recommend replacement honestly.
Deteriorated Concrete
Surface scaling, rebar exposure, or crumbled edges signal end-of-life concrete. Polyjacking lifts intact slabs; severely degraded ones need replacement.
Failed Subgrade
Wet, washed-out, or organic-fill soil beneath a slab — foam densifies and locks it before lifting, so the new elevation actually holds.
Multiple Failed Lifts
If a slab has been mudjacked once or twice and dropped again, we can usually still polyjack it. The foam succeeds where slurry has failed.
Free Concrete Leveling Inspection
If you have settled, sunken, or uneven concrete, an inspection is the fastest way to know exactly what it’ll take to fix.
Learn More About
Related Resources
Polyjacking is the method (polyurethane foam injection). Concrete leveling is the result (a flat, uniform slab). Same outcome, different framing.
Yes. By restoring proper slope, leveling can correct drainage that no longer flows the right direction.
Yes. Polyjacking’s small injection ports and precision control make it suitable for stamped, colored, and decorative slabs.
No. Polyurethane foam doesn’t shrink, wash out, or degrade. Long-term stabilization is the goal — and what we deliver.