Foundation Repair · Solution

Slab & Mud Jacking: Lifting Sunken Concrete Back Into Place

A proven, less-invasive way to raise settled slabs across North and South Carolina, without tearing out and repouring the concrete.

North Carolina · South Carolina BBB A+ Rated

Let's take the first step toward a healthy home.

A local specialist will inspect your foundation, walk you through the findings, and send a clear estimate. no cost, no pressure.

Book instantly with Driive
BBB Accredited
Fully Insured
"By Your Side" Guarantee
How it works

What slab & mud jacking is and when it's the right call.

Mud jacking works on a simple principle: a settled slab has voids underneath it, and filling those voids with a dense, flowable material both supports the slab and pushes it back up. Our crew drills a pattern of small holes, typically around the size of a quarter to a silver dollar, through the top of the concrete. A cement-based slurry (a blend of sand, cement, and water, sometimes with other fine aggregates) is pumped under pressure through those holes. As the slurry fills the empty space beneath the slab, it raises the concrete gradually and evenly back toward its original elevation. The lift is controlled in small increments so the slab does not crack or over-rise. Once the slab is back at the target height, the holes are patched. The cured slurry then acts as a stable base beneath the concrete. Mud jacking addresses the slab and the void directly beneath it. It does not, on its own, change the deeper soil conditions or drainage problems that allowed the settlement to happen in the first place. That is why diagnosis matters: in some Carolina soils, particularly active Piedmont clay or washed-out subgrade near downspouts, we may recommend correcting the underlying cause, or using a deeper structural solution like piers, so the lift holds up over time rather than re-settling.

Installation Process

How we install slab & mud jacking.

Step 01

No-pressure inspection and diagnosis

We start by evaluating the slab and, just as importantly, why it settled. We check the degree and direction of settlement, look for voids, and assess soil and drainage conditions around the slab. In Piedmont clay or Sandhills sandy soils, the cause of settlement shapes the recommendation, and we will tell you plainly if mud jacking is not the right fit for your slab.

Step 02

Confirm candidacy and explain the plan

Mud jacking is well suited to many exterior and interior flatwork slabs but is not appropriate for every situation. We confirm whether your slab is a good candidate, walk you through what the lift will involve, and explain any drainage or soil corrections we would recommend alongside it. You get a clear picture before any work begins.

Step 03

Drill injection holes

Our crew drills a pattern of small holes through the surface of the slab in the areas that need lifting. The hole pattern is planned around where the voids are and how the slab needs to rise so the lift comes up evenly.

Step 04

Pump the slurry and lift the slab

A cement-based slurry is pumped through the holes under controlled pressure. As it fills the voids beneath the slab, the concrete is raised in small, monitored increments back toward its original height. Working gradually keeps the lift even and reduces the risk of cracking the slab.

Step 05

Patch, clean up, and review

Once the slab is at the target elevation, we patch the injection holes and clean the work area. We review the finished result with you and go over any drainage or grading recommendations that help protect the lift, so you understand how to keep the slab supported going forward.

"Lifting a slab is the easy part. The job we actually take pride in is figuring out why it sank in the first place, because in our Carolina soils that's what determines whether the fix lasts. If mud jacking isn't the right answer for your concrete, we'll tell you, no pressure, no upsell."
CP
Cory Parks
Owner, HydroHelp911
Why Choose HydroHelp911

Care and expertise from a team that does this every day.

HydroHelp911 is locally owned and operated, with crews dedicated exclusively to foundation, basement, and concrete work across the Carolinas.

Specialized expertise.

Foundation repair, waterproofing, and concrete leveling are our entire focus. not a sideline.

Locally owned and operated.

Deep experience with Carolinas soils, basements, and weather conditions.

BBB A+ rated.

Accredited with an A+ rating and thousands of homeowner reviews across the Carolinas.

Warrantied solutions.

Lifetime warranties available on many services, backed by the original installer.

HYDROHELP911

Why hire HydroHelp911.

MEET THE TEAM · 2 MIN
Frequently Asked Questions

Answers to common questions about Slab & Mud Jacking.

Don't see your question here? Our team is happy to help. Reach out anytime.

The terms are often used interchangeably. "Slab jacking" and "concrete lifting" are general terms for raising a settled slab back to level. "Mud jacking" specifically refers to doing that with a cement-based slurry pumped beneath the slab. Some companies also lift concrete with polyurethane foam injection, which is a different material. During your inspection we explain which approach fits your slab and why.

Pricing ranges above are general estimates only and are not project quotes. A precise figure is provided on each written estimate after on-site inspection.
Related Solutions

Other foundation repair solutions we install.

Every solution is engineered for a specific soil profile and failure mode. Browse the full toolkit.

Service Areas

Serving North Carolina & South Carolina.

Local crews based in offices across the Carolinas, dispatched daily. If your town isn't listed, call us. we likely serve your area.

Top cities we serve
Check Your Service Area
Our Process

Take the first step toward a healthy home.

A straightforward path from initial inspection to completed repairs.

Step 01

Schedule your inspection.

A local specialist visits your home, evaluates the foundation, and answers your questions on site. No cost, no obligation.

Step 02

Receive an estimate based on your needs.

We provide a clear, written estimate with a scope of work tailored to your home's specific issues. Typically within one business day.

Step 03

Get your repairs.

Our certified crews complete the work on schedule and back it with product warranties of up to 25 years.

Customer Reviews

Over 1,750 homeowners have shared their experience.

A 4.9-star average across Google, with verified reviews from homeowners throughout North and South Carolina.

Free Estimate

Two ways to start: book instantly, or request an estimate.

Schedule your inspection in seconds with our Driive booking tool, or share a few details and a local specialist will follow up within one business day.

What to expect
  • A local foundation specialist on site
  • A complete walk-through of the findings
  • A written estimate within one business day
  • No cost, no obligation, no high-pressure sales
Prefer to call
704-610-4399
North Carolina · South CarolinaBBB A+ Rated
HydroHelp911

Let's take the first step toward a healthy home.

A local specialist will inspect your foundation, walk you through the findings, and send a clear estimate. no cost, no pressure.

Book instantly with Driive
BBB Accredited
Fully Insured
"By Your Side" Guarantee
Our Locations

Local offices across the Carolinas.

See all service areas
Dallas, NC
HydroHelp911
111 Iron Station Rd
Dallas, NC 28034
704-610-4399
Huntersville, NC
HydroHelp911
14936 Brown Mill Rd Ste 9
Huntersville, NC 28078
704-610-4399
Matthews, NC
HydroHelp911
11145 Monroe Rd Ste 105
Matthews, NC 28105
704-610-4399
Asheville, NC
HydroHelp911
34 Wall St #805D
Asheville, NC 28801
704-610-4399
Wilmington, NC
HydroHelp911
201 N Front St Ste 214
Wilmington, NC 28401
704-610-4399
Greensboro, NC
HydroHelp911
1515 W Cornwallis Dr Suite 201-B
Greensboro, NC 27408
704-610-4399
Greenville, SC
HydroHelp911
7 Brendan Way #13
Greenville, SC 29615
704-610-4399
Columbia, SC
HydroHelp911
1122 Lady St Suite 208
Columbia, SC 29201
704-610-4399