Concrete Leveling and Mudjacking in Little Rock, AR
Sunken driveways, patios, and garage slabs are common across Little Rock, especially in neighborhoods built on Sharkey and Perry clay soils east and south of downtown, where wet-dry cycles cause soil beneath exterior concrete to compact unevenly over time. Concrete leveling, whether by traditional mudjacking or newer polyurethane foam injection, raises a settled slab back to grade without replacing it, and typically costs a fraction of full slab replacement. This guide covers what leveling actually fixes, what it costs in the Little Rock market, and when a sunken slab is a sign of a deeper foundation issue that leveling alone will not solve.
By Jason Green · Foundation Repair · Published August 31, 2026 · 8 min read
What concrete leveling fixes and what it does not
Concrete leveling addresses exterior slabs, driveways, sidewalks, patios, and sometimes garage floors that have settled unevenly because the soil beneath them compacted, eroded, or washed out, which is common in Little Rock after heavy spring rains move soil beneath a slab edge. It raises the existing slab back to a level position rather than replacing the concrete.
It does not fix structural foundation settlement under the house itself, cracked foundation walls, or piers that have failed. If the sunken concrete is attached to or adjacent to the home's foundation and the interior floors are also uneven, that points toward a foundation issue requiring piering rather than simple leveling.
Mudjacking versus polyurethane foam in the Little Rock climate
Mudjacking pumps a cement, soil, and water slurry underneath the slab through drilled holes to lift it, and has been used for decades. It is generally less expensive per section but heavier, which means it can be more prone to sinking again in loose or saturated Sharkey clay soils common east and south of Little Rock.
Polyurethane foam injection uses a lightweight, fast-expanding foam that cures within about 15 minutes and adds far less weight to the soil beneath. In areas with looser, wetter, or expansive clay soils, foam is often the more durable option even though it costs somewhat more upfront.
Typical costs for concrete leveling around Little Rock
Pricing depends on slab size, how far it has settled, and the method used, but sidewalk or small patio sections typically run on the lower end of the range, while larger driveway sections or garage floor slabs cost more due to the volume of material needed to fill voids.
Get itemized quotes that specify method, number of injection points, and warranty length, since some companies discount aggressively on price but use fewer injection points, producing a less even, shorter-lived lift.
Why sunken slabs are so common in Little Rock
Much of south and east Little Rock has clayey alluvial soils that are poorly drained and slowly permeable, meaning water sits near the surface after heavy rain rather than draining away quickly. That saturation, followed by drying, causes the soil beneath exterior slabs to shift and settle unevenly over years, especially where a slab edge sits near a downspout discharge point or a low spot in the yard.
Correcting the drainage issue that caused the settlement, typically extending downspouts and regrading, is important even after leveling, since releveled concrete over the same drainage problem will likely settle again within a few years.
When to call a foundation company instead of a concrete leveling company
If the sunken slab is part of your home's foundation footprint, such as an attached garage floor showing the same settlement pattern as interior floors, or if you notice new drywall cracks and sticking doors alongside the sunken exterior concrete, get a structural evaluation rather than booking a leveling job outright.
A structural engineer or foundation contractor can confirm whether the movement is isolated to the slab or connected to foundation settlement that needs piering, saving you from paying to level a slab that will sink again because the underlying structural cause was never addressed.
Typical cost ranges
| Sidewalk section (mudjacking) | $300 - $700 |
| Small patio (mudjacking) | $500 - $1,200 |
| Driveway section (mudjacking) | $800 - $2,500 |
| Sidewalk section (polyurethane foam) | $400 - $900 |
| Small patio (polyurethane foam) | $700 - $1,600 |
| Driveway section (polyurethane foam) | $1,200 - $3,200 |
| Garage floor slab leveling | $1,500 - $4,000 |
Ranges are general estimates gathered from homeowner-reported quotes, not an offer or a quote for your project.
Common questions
How long does concrete leveling last in Little Rock?
A properly done leveling job, especially with polyurethane foam, commonly lasts 10 years or more if the underlying drainage problem is also addressed, but repeated settling can occur sooner in areas with unresolved drainage issues into expansive clay.
Is mudjacking or polyurethane foam better for Little Rock soils?
Polyurethane foam is generally more durable in the loose, wet clay conditions common east and south of Little Rock because it is lighter and cures faster, though mudjacking is typically less expensive upfront.
Can concrete leveling fix a cracked driveway?
Leveling raises a sunken slab but does not repair existing cracks. Cracks are usually sealed separately with caulk or epoxy, or the slab section is replaced if cracking is severe.
Why does my driveway keep sinking after it was leveled before?
This usually means the underlying drainage problem, such as a downspout discharging near the slab edge or poor grading, was never corrected, so the soil beneath the slab continues to erode or shift.
Does concrete leveling require a permit in Little Rock?
Routine concrete leveling of an existing slab typically does not require a permit since it is not structural work, but confirm with the City of Little Rock Planning and Development Department if your project also involves foundation-adjacent structural repair.
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