A sunken driveway, sidewalk, or patio slab is usually a trip hazard and an eyesore — but it rarely needs replacing. Lifting it back to level costs a fraction of tear-out. Here is what concrete leveling costs in the Grand Island area, mudjacking vs. foam, and why slabs sink.
Concrete leveling in the Grand Island area typically runs about $3 to $8 per square foot for mudjacking and roughly $5 to $15 per square foot for polyurethane foam lifting. A sunken driveway section, sidewalk, or patio often falls in the few-hundred to low-thousands range — far cheaper than tearing out and pouring new concrete. Cost depends on the slab size, how much lift is needed, and the method. Request a quote with the rough size of the slab and how far it has settled.
Foam is often preferred for driveways and anything that needs to be back in use quickly; mudjacking can be the economical choice on larger, less time-sensitive slabs. A good contractor recommends based on the slab and soil, not just what they own.
Concrete on grade is only as stable as the soil under it. When that soil washes out, compacts, or shrinks and swells with moisture, voids form and the slab drops. In the Grand Island area, poor drainage, downspouts dumping next to slabs, and the same expansive soils that affect foundations are common causes. That is why lifting the slab and correcting the drainage together is the lasting fix — otherwise the void reopens and it sinks again.
About $3 to $8 per square foot for mudjacking and $5 to $15 for foam. A sunken driveway or sidewalk is often a few hundred to low thousands — far less than replacement.
Mudjacking is cheaper; foam is lighter, cures in minutes, resists washout, and uses smaller holes, so it is often preferred for driveways. Depends on the slab and soil.
The soil beneath washes out, compacts, or shrinks and swells, forming voids. Poor drainage and downspouts are common causes.
A properly lifted slab with the drainage corrected can stay level for years. Skipping the drainage fix is what leads to re-sinking.
Visit the full FAQ page for more.
When it is the house, not just a slab, that is settling.
Fix the drainage that undermines slabs.
Seal cracks in foundation walls.
You can also review crawl space encapsulation, bowing wall repair, and the areas we serve.