What a slab leveling job involves
A slab on the ground, such as a garage floor, porch landing, walk or driveway, can drop where the soil under it has shifted, washed out or compacted. Leveling means raising the slab, or replacing it, so it sits where it should. Contractors describe several methods, and we found no government or extension source on how they compare, how long any of them lasts, or what the rules are in Michigan, so we do not call one proven.
What you can judge yourself is the question of cause. A slab that dropped once after a plumbing or drain repair is a different case from one that drops a little every spring. Ask the contractor what they think moved the soil and what, if anything, they will change so it does not happen again.
What slab leveling costs in Michigan: estimates, not quotes
Our estimate for slab leveling in Michigan is $445 to $1,575 per job, or $4 to $11 per square foot, lifted. It is a model, not a quote, built from published national ranges and adjusted by Michigan's cement mason wage ratio (1.05). We have collected no Michigan quotes. The rows below show wages and permit fees only.
| Item | Figure | What it is |
|---|---|---|
| Estimated range, not a quote | $445 to $1,575 per job | Built from one national published range, adjusted by the Michigan cement mason median wage ratio (1.05). No Michigan foundation company price is shown, because none of the companies we looked at published a price we could count. |
| Estimated range per square foot, not a quote | $4 to $11 per square foot, lifted | Built from one national published range, adjusted by the Michigan cement mason median wage ratio (1.05). No Michigan foundation company price is shown, because none of the companies we looked at published a price we could count. |
| Cement masons and concrete finishers, Michigan median | $59,860 a year | What workers are paid (BLS 2025 data via O*NET), not what you are charged. |
| Construction laborers, Michigan median | $49,590 a year | What workers are paid, not what you are charged. |
| Building permit, Westland | $100 minimum plus a $100 administration fee | Schedule undated on the page. Applies only if the work needs a permit. |
| Building permit, Sterling Heights | $56 application fee; concrete line $78 | 2026-27 application. Confirm the line applies to your job. |
How we estimate costs: the Estimated range row is a model, not a quote. It takes one published national range for this job (a cost guide from a third-party site that we have not verified and do not cite) and multiplies it by Michigan's cement mason median wage ratio to the US (1.05, BLS 2025 data read through O*NET OnLine). No permit fee is added: the city permit rows below are shown as printed. The wage and permit rows are what workers are paid and what a city's own schedule charges, and neither is a price. Your soil, water and the repair method move a real quote well outside any range, so get an independent diagnosis first. We have not collected quotes, and we found no Michigan foundation company that publishes a price we could count. Full method. Prices as of Oct 19, 2026.
Which Michigan license covers lifting concrete
Michigan defines a maintenance and alteration contractor to include one who undertakes the laying of concrete on residential property, and concrete is one of the crafts on the license. Whether lifting a slab counts as concrete work is our inference, since the statute does not name slab leveling. We could not verify it, so LARA is the place to confirm.
A contractor taking $600 or more in labor and materials, counted together and not split into smaller contracts, needs a LARA residential builder license or a maintenance and alteration license. Look at the crafts printed on it using the LARA license search, and see our license checking guide. An owner doing their own occupied home needs no license.
When flatwork needs no building permit, and when it might
Michigan's permit rule (R 408.30505) exempts a sidewalk or driveway not more than 30 inches above adjacent grade, not over any basement or story below, and not part of an accessible route. That covers plain driveway and walk flatwork. It says nothing about an interior basement slab or a garage floor, so do not assume the exemption reaches them.
Cities can add their own requirements. Westland, for example, has a zoning application for flatwork, so call your building department before the crew arrives. If lifting the slab is really a symptom of a failing footing or wall, the job is a structural repair and the base code's permit rule applies; see foundation repair.
Why the cause comes before the lift
Water is the usual suspect for soil that moves, though no Michigan source we read ranks causes. University of Minnesota Extension says roof water is a big load: a one-inch rain puts 1,250 gallons on the roof of a 2,000 square foot house. It says grade should slope away from the wall at least one inch per foot for at least six feet, and downspout extensions should discharge at least four feet from the wall.
A company paid to lift slabs has little reason to send you to a gutter fix, and a lifted slab over soil that is still washing out will drop again. Take photographs, look at where the downspouts end and whether water pools at the low spot, and if the slab is attached to the house, get an independent opinion, as described in get an engineer first. Then compare bids that state the cause they assumed.
When a sunken slab is urgent
- The slab is next to the house and the wall or floor is also moving.
- A step or edge has become a trip hazard on a path people use daily.
- Water now runs toward the house along the sunken slab.
- A slab that sank years ago and has not changed.
- A hairline crack in a slab that is still level.
What to check before you call about a sunken slab
- Run a hose or pour water on the slab and watch where it goes. Water running toward the house or pooling at the low edge is a clue.
- Check where each downspout ends and whether the ground beside the slab has settled.
- Photograph the gap with a ruler and mark the date, so you can tell later whether it moved.
Permits and licensing for slab leveling
Driveway and sidewalk flatwork within the limits above is exempt from a building permit, and a contractor needs a LARA license at $600 or more.
Ask for the contractor's license number and check it with your state licensing agency before you sign anything.
- MCL 339.2401(b), 339.2404(3) Read Oct 19, 2026. Confirm with the source before you rely on it.
- MCL 339.2404 (license scope, crafts and trades) Read Oct 19, 2026.
- LARA: Helpful Information for Homeowners Read Oct 19, 2026.
- Westland building permit fee schedule Read Oct 19, 2026.
- Sterling Heights building permit fee schedule Read Oct 19, 2026.
A tool for this job
Crack identifier
A crack is a clue, not a verdict. Pick the direction it runs, say if it has changed, and say what else is happening, and the tool gives a general reading, a first step and the page that explains more. It runs in your browser and asks for nothing.
Open the toolQuestions people ask
Does slab leveling need a license in Michigan?
A contractor taking $600 or more in labor and materials needs a LARA residential builder or maintenance and alteration license. Concrete is a named craft, but whether lifting a slab counts as concrete is our inference; check the crafts on the license.
Do I need a permit to level a driveway or sidewalk in Michigan?
Often not: state rules exempt a sidewalk or driveway not more than 30 inches above grade, not over any basement and not part of an accessible route. Cities may add zoning rules, so ask your building department.
Does the permit exemption cover a garage or basement floor?
The rule does not mention them, so do not assume it does. Ask your building department, especially if the floor is part of a structural repair.
Which slab leveling method is best?
No government or extension source we read ranks the methods, so we will not either. Ask each contractor what they would do, what they think moved the soil, and how they would check the work.
Why did my slab sink?
Moved soil under it is the usual reason, and water is a common cause. University of Minnesota Extension advises sloping grade away from the wall and extending downspouts at least four feet. Fix the water first or the slab may drop again.
How much does slab leveling cost in Michigan?
Our estimate for slab lifting in Michigan is $445 to $1,575 per job, or $4 to $11 per square foot, lifted. It comes from published national ranges adjusted for Michigan wages, because we have collected no quotes. The cost table also shows wages and permit fees. Ask for written bids that name the method and the cause.
- Mich. Admin. Code R 408.30505 (Cornell LII) Read Oct 19, 2026.
- ICC: 2015 International Residential Code ch. 1 (R105.1) Read Oct 19, 2026.
- UMN Extension: Moisture in basements: causes and solutions Read Oct 19, 2026.
- O*NET OnLine (U.S. Department of Labor), Michigan wages, Cement Masons and Concrete Finishers (SOC 47-2051), republishing BLS OEWS 2025 Read Oct 19, 2026. Confirm with the source before you rely on it.
- FoundationMatch: how we estimate costs (editorial policy) Read Oct 19, 2026.
- O*NET OnLine (U.S. Department of Labor), Michigan wages, Construction Laborers (SOC 47-2061), republishing BLS OEWS 2025 Read Oct 19, 2026. Confirm with the source before you rely on it.