Concrete leveling and slab jacking costs between $3 and $12 per square foot, with most homeowners spending between $600 and $1,800 ($900 average) to lift sunken sidewalks, uneven driveways, pool decks, and patio slabs. Traditional slurry mudjacking averages $3 to $6 per sq ft, while expanding polyurethane foam leveling (PolyLevel / foam jacking) ranges from $5 to $12 per sq ft.
Slab jacking is typically 50% to 75% cheaper than demolition and replacing concrete ($10–$18/sq ft), takes only 1 to 2 hours, and allows immediate foot or vehicle traffic. Use the calculator below to estimate your exact square footage, lifting method, and minimum project charge.
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Slab Jacking & Concrete Leveling Cost by Project Type
Contractors typically charge based on square footage, void depth, and a standard minimum mobilization charge ($300 to $600).
| Project Type | Typical Area | Mudjacking Cost | Poly Foam Leveling Cost | Full Replacement Cost |
|---|---|---|---|---|
| Sidewalk Slab / Walkway Trip Hazard | 50 – 100 sq ft | $350 – $600 (min.) | $500 – $800 (min.) | $1,000 – $1,800 |
| Sunken Patio Slab | 150 – 300 sq ft | $600 – $1,400 | $1,000 – $2,400 | $2,500 – $4,500 |
| 2-Car Driveway Settlement | 400 – 800 sq ft | $1,200 – $2,800 | $2,000 – $4,800 | $5,000 – $10,000 |
| Garage Floor / Workshop Slab | 400 – 600 sq ft | $1,400 – $2,600 | $2,200 – $4,200 | $4,800 – $8,500 |
| Pool Deck Concrete Lifting | 200 – 500 sq ft | $800 – $2,200 | $1,400 – $3,800 | $3,600 – $7,500 |
Slab Jacking Methods: Mudjacking vs. Polyurethane Foam
Both methods hydraulically lift settled concrete slabs back to level grade, but they use different materials and drill hole sizes.
| Feature / Specification | Traditional Mudjacking | Polyurethane Foam Jacking (PolyLevel) |
|---|---|---|
| Cost Per Square Foot | $3.00 – $6.00 | $5.00 – $12.00 |
| Injected Material | Cement, sand, topsoil & water slurry | High-density closed-cell structural foam |
| Weight of Material | 100–120 lbs per cubic foot (heavy) | 3–5 lbs per cubic foot (ultra-lightweight) |
| Drill Hole Diameter | 1.5″ to 2.0″ (soda-can size) | 5/8″ (penny/dime size) |
| Cure Time for Traffic | 24 to 48 hours | 15 to 30 minutes |
| Lifespan | 5 to 10 years | 10 to 20+ years (waterproof) |
| Best Used For | Large driveways on a strict budget | Pool decks, walkways, highly visible patios |
Key Factors That Determine Your Leveling Price
- Method Chosen: High-density polyurethane foam costs approximately 30% to 50% more than mudjacking upfront, but its ultra-light weight prevents re-settling in weak subsoils.
- Void Depth & Soil Settlement: Slabs that have dropped 3 to 6 inches require more injected slurry or chemical expanding resin, increasing material consumption.
- Accessibility & Location: Hoses must reach from the contractor’s rig to the slab. Fenced backyard pool decks or steep hillsides add minor setup fees ($100–$250).
- Contractor Job Minimum: Because of travel and equipment mobilization, most leveling pros enforce a $350 to $600 minimum service call fee.
- Caulking & Expansion Joint Sealing: Sealing open control joints and cracks with silicone or polyurethane elastomeric caulk adds $2 to $4 per linear foot to keep runoff water from eroding soil underneath.
Frequently Asked Questions About Slab Jacking
What is slab jacking and how does it work?
Slab jacking (also called concrete lifting or leveling) is a non-destructive repair method where technicians drill small holes through a sunken concrete slab, inject pressurized material (limestone slurry or polyurethane foam) underneath, and hydraulically lift the slab back flush with surrounding surfaces.
Is slab jacking cheaper than replacing concrete?
Yes. Slab jacking costs $3 to $12 per sq ft, whereas tearing out old concrete and pouring a new slab costs $10 to $18 per sq ft plus $2 to $4/sq ft in demolition and dumping fees. Leveling saves 50% to 75% total.
How long does polyurethane foam leveling last?
High-density structural polyurethane foam is inert, completely waterproof, and will not wash away or degrade underground. When soil erosion is controlled with proper drainage, poly foam leveling typically lasts 10 to 20+ years.
Can cracked or broken slabs be leveled?
Yes, as long as the concrete is broken into distinct intact sections rather than crumbled into gravel. Technicians lift each cracked section independently to restore a safe, even walking plane.
Related Concrete Tools
- Concrete Sidewalk & Walkway Calculator
- Concrete Driveway Cost Calculator
- Concrete Slab Cost Calculator
- Ready-Mix Concrete Price Per Yard
Sources and Update Policy
Figures are updated monthly from public contractor data and national association indices. See our estimation methodology.
Estimate transparency
How this estimate was prepared
- Prepared by
- GoHomeCost Cost Data Team
- Last reviewed
- August 24, 2026
- Update cycle
- Public price inputs checked monthly
Calculation method: Project quantity is multiplied by editable low, typical, and high unit rates. Selected location adjustments, waste, fixed charges, and minimum-job rules are then applied and shown in the result.
Public references used on this page:
This is a planning estimate, not a quote or structural specification. Check product yields, local code, site conditions, and written contractor bids before purchasing materials or building.
Read the full methodology Report a price or calculation issue