Concrete curb ramp work in progress during an accessibility upgrade

CONCRETE LEVELING COST

Concrete Leveling Cost: What You’ll Really Pay

Most leveling jobs land between $700 and $5,000. Replacing the same slab usually costs a lot more, and the new one can sink too if the water problem is still there.

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Photo: Oregon DOT / Wikimedia Commons · License

WHY SLABS SINK

It’s the dirt, not the concrete.

01Poured on loose fill
Fill dirt near new houses often isn’t compacted well. The slab sits level at first.
02Water moves the soil
Downspouts, broken sprinkler lines, and freeze-thaw wash soil out or let it settle. A gap opens under the slab.
03The slab drops
With nothing under one end, it tips into the hole. Now water runs toward the house and pools on the low side.

Fix the water source too, or the new fill can wash out the same way.

BEFORE / AFTER

What the crew is actually fixing.

Sidewalk panels that dropped below the curb and the next slab, leaving a raised edge — **Trip edge, water pooling.** One end sank into a washed-out pocket. Panels no longer line up and rain runs the wrong way.

Technician injecting polyurethane foam through a slab while a dial gauge on the next panel tracks the lift — **Lift while watching a gauge.** The tech injects through the slab while a dial indicator on the next panel shows exactly when it’s level.

After

Flush joints, drainage restored. The void is filled, the slab sits back at grade, and the holes are patched. Same concrete, no tear-out.

Photos: credits & licenses. Diagrams are illustrations, not to scale.

NATIONAL PRICE CONTEXT

$3–$12 per square foot; $700–$5,000 typical total

The full range runs $2–$25 per sq. ft. The spread comes from the method (mud or foam), how far it sank, how big the void is, and whether a crew can get a rig to it.

These are national reference figures, not local market data, a guarantee, or a substitute for a written estimate after an on-site inspection.

What shapes an estimate?

A good quote names the panels, the material, the hole layout and what’s not included. If it just says “level driveway, $1,800,” ask for the rest in writing.

Factor	National reference / question
Mudjacking	$4–$9 per sq. ft.
Polyjacking / foam lifting	$8–$25 per sq. ft.
Stone-slurry grout	$6–$15 per sq. ft.
Self-leveling overlay	$2–$5 per sq. ft.; generally for thin resurfacing, not lifting a settled slab.

Questions to bring to a quote

What may be causing this section to settle, and how will you assess the area below it?
Which lifting method and material do you recommend for this slab—and why?
How will you handle drainage, nearby panels, cracks, or access limitations?
What is included in the written price, and what could add cost?
What curing, use, and maintenance guidance should I follow?
What warranty applies, and what conditions are excluded?

SOURCE NOTES

National ranges, linked to their source.

Cost figures were checked against these HomeGuide pages. Estimates are broad national ranges and may change over time.