Sinking Slab Repair Services in Charlotte, NC
Urgent Concrete

Sinking Slab Repair Services in Charlotte, NC

Drops laser-shot at four corners plus mid-panel. Under three inches on an intact slab lifts back to grade with mudjack slurry or high-density foam. Over that, base rework happens with the slab out of the way — a replacement.

Sinking Slab Repair in Charlotte, NC

Sinking slabs in Charlotte are almost always a base problem — the compacted stone under the slab has washed out, settled, or was never installed at the right depth. Concrete does not sink on its own; something under it moved. The two real fixes are lifting (mudjacking or polyurethane foam) and replacement. We shoot elevations on the slab first — a laser or precision straight-edge, corner to corner, quarter-panel by quarter-panel — so the drop is a number in inches, not a description. Under 3 inches of drop, on a slab that is not itself cracked into multiple pieces, is a lift candidate. Mudjacking pumps a slurry of sand, cement, and water through 1.5" ports to lift the slab back to elevation. Polyurethane foam does the same with smaller ports and less mess, and it will not wash out if the underlying soil stays wet. Over 3 inches, or a slab that is already broken up, means the base rework has to happen with the slab out of the way — that is a replacement. We give you both prices, on paper, before we cut.

Range on this repair Sinking Slab Repair in Charlotte

Range on this repair

$500-$6000

typical lift or replacement range

Time on site

Lift is same-day. Replacement is 3–5 days start to finish.

Callback

Same business day

Photo → scheduled on-site inside 48 hours.

Repair math vs replacement math Sinking Slab Repair

  • Elevations measured, not eyeballed
  • Base failure diagnosed before the lift or replacement is quoted
  • Mudjacking, polyurethane foam, or replacement — matched to the drop and the base
  • Written scope with both lift and replacement prices
  • Same-day callback across the Charlotte metro
  • Licensed & insured in NC

Recent Charlotte-metro repairs Sinking Slab Repair

Why the Charlotte-metro property crowd calls us on repair

Caliper diagnosis, photographed for the file
One scope, two prices — repair and replacement
Photo-to-callback the same business day
Scope signed before a single cut is made
NC general-contractor license, workers-comp on file
Zero verbal upsells — scope-locked pricing

How this repair actually gets done

1

Failure caliper & laser reading

Widths, offsets, drops — read to the millimeter and photographed for your file.

2

Cause named on site

Clay movement, base wash-out, freeze-cycle stress, or install defect — each has a different fix.

3

Two-price scope on paper

One document with a targeted-repair number and a full-replacement number, plus expected hold years for each.

4

Cut, inject, lift, or re-pour

The scope dictates the method — polyurea seal, epoxy injection, mudjack, foam lift, section replacement, or full tear-out.

The sequence, step by step

Step 1

Elevation shots

Every quarter-panel of the slab gets a measured elevation vs the finished grade.

Step 2

Base diagnosis

Void probes and moisture check tell us why the slab settled and whether a lift will hold.

Step 3

Written scope, both prices

Lift (mudjack or foam) and full replacement, on one document.

Step 4

Execute the fix

Lift, or full tear-out and re-pour with base rework — whichever the scope calls for.

Sinking Slab Repair FAQ

Common questions about sinking slab repair in Charlotte, NC.

Text a Photo

Should I lift the slab or replace it?

If the drop is under 3 inches and the slab itself is not broken into multiple pieces, a lift will hold. If the drop is over 3 inches or the slab is already cracked into panels, the base has to be reworked with the slab out of the way — that is a replacement. We tell you which one on site.

Mudjacking or polyurethane foam?

Mudjacking is cheaper per square foot and works fine on driveways and patios where the void is bigger. Polyurethane foam uses smaller ports (about 5/8" vs 1.5"), lifts more precisely, and holds up better in wet soil. On a pool deck or under a step where the aesthetic matters, foam wins. On a big driveway settlement, mudjacking often wins on price.

How much does slab lifting cost in Charlotte?

Mudjacking runs $3–$7 per square foot depending on the number of ports and the lift height. Polyurethane foam runs $8–$15 per square foot. Replacement (when the slab cannot be lifted) runs $6–$10 per square foot on a driveway or patio.

Text a Photo Sinking Slab Repair?

Get a free, no-obligation estimate for your sinking slab repair project. Same-day response from Urgent Concrete.

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Same business day, Charlotte metro.

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Urgent Concrete

Charlotte NC · Repair & Replacement

NC GC license, workers-comp on file
Same-business-day photo callback
Scope-locked pricing, no verbal upsells

Our Service Area

Send us a phone photo — we’ll call back today.

The fastest path to a Charlotte concrete repair scope: text or upload a photo, we reply the same day with the failure class and a next-step. Written scope on the on-site visit.

NC GC Licensed
Photo → Same-Day Callback
Two-Price Scope