Sunken driveways, sidewalks, patios, garage floors, and pool decks do not need to be torn out. Modern concrete leveling raises sunken slabs back to grade in hours — at a fraction of the cost of replacement.
We drill a few small holes through the sunken slab, then inject high-density polyurethane foam underneath. The foam expands, fills voids, and gradually lifts the slab back to level. Once the slab is at proper elevation, the holes are patched. The whole process typically takes 1–3 hours per area.
Older "mudjacking" used a slurry of soil, sand, and cement to lift slabs. It works, but it is messy, requires bigger holes, adds significant weight (which can cause re-sinking), and takes 24+ hours to cure. Polyurethane foam is lighter, cures in minutes, requires only small dime-sized injection holes, and is waterproof. We use polyurethane.
Same reason foundations move: soil. When soil under a slab compacts, washes out, or shrinks, the slab loses support and sinks. Common causes include poor original compaction, plumbing leaks, downspout discharge, tree roots, or just decades of normal soil settlement.
Replacement requires demolition, removal, new pour, days of curing, and is typically 3–5x more expensive. Leveling fixes the same problem in a few hours, with no demo and no waiting.
A typical residential concrete leveling job runs $400–$1,500 per area depending on size and lift height. Larger commercial projects scale from there. Most jobs are completed in a single visit. The leveled slab can be walked on immediately and driven on within a few hours.
If your slab is severely cracked, crumbling, or has lost structural integrity, replacement may be the better call. We tell you honestly during the inspection. Leveling is for slabs that are intact but have settled.