Slab lifting and leveling
Concrete Leveling for Sunken Slabs in Bridgeport
A sunken walk, driveway, patio or step that is still sound can be lifted back to level through small drilled holes, and lifting can cost about half as much as replacing it.
Monday to Friday, 8 am to 4:30 pm. Calls outside those hours go to voicemail and we return them the next working morning.
- About halfwhat lifting can cost next to replacing
- Minutesfor lifting foam to cure
- Freeon-site estimates
Sunk, not broken
Concrete Leveling in Bridgeport
We lift sunken walks, driveways, patios and steps back to level on residential and commercial properties across the city, without tearing them out.
Raising a settled slab can cost about half as much as replacing it. It also does far less damage to the lawn and plantings around it, and the walk or driveway is out of use for less time than a tear-out and a new pour.
- Walks and sidewalks
- Driveways
- Patios
- Steps and stoops
Foam versus slurry
Foam Lifting and Mudjacking
Foam lifting injects high-density polyurethane that cures in minutes and adds almost no weight, while mudjacking pumps a heavier slurry of sand and Portland cement under the slab.
The two ways a slab is lifted.
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Cures in minutes
Polyurethane foam lifting
Often called "polyjacking": high-density polyurethane foam is injected to fill the voids and push the slab back up.
- Under the slab
- High-density polyurethane foam
- Weight added
- Almost none, so the soil carries no new load
- Holes
- Smaller than mudjacking needs
- Price per job
- Higher than mudjacking
PolyLevel is one foam injection system built for lifting concrete, and HMI is one maker of lifting foam.
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Mudjacking
Part of what the trade calls "slabjacking", the umbrella name for raising a sunken slab by pumping material under it.
- Under the slab
- Sand and Portland cement slurry
- Weight added
- Heavier fill sitting on the same soil
- Holes
- Larger than foam needs
- Price per job
- Lower than foam
A poor choice when the slab is badly deteriorated or the soil under it is still settling.
From the call to a level slab
How a Slab Is Lifted
Small holes are drilled through the slab, material is injected underneath until the slab rises, and then the holes are patched and the area cleaned.
- We look at it first
We come out for a free, no-obligation estimate, check that the slab is sound enough to lift, and quote the whole job before we start.
- Small holes are drilled
A few small holes go through the sunken section, down to the hollow spots underneath.
- The slab rises
Foam or slurry is injected under the slab, filling the voids, until it comes back up level with the concrete beside it.
- Patched and cleaned up
Each hole is filled flush with the surface of the slab, and we clean up before we leave.
Before you ask for a number
How Concrete Leveling Is Priced
Concrete leveling in Bridgeport typically runs $500 to $1,500 a slab, and the price for yours is set by the size of the job, access, the material and the preparation it needs.
$500 to $1,500
Typical range for a slab
$6.18 to $7.58
Typical range per square foot of slab raised
About half
What lifting can cost next to replacing
What sets the price
- The void underneathLeveling is priced by the size of the hollow under the slab, not by the slab's square footage.
- AccessHow easily the hose and the rig reach the sunken section.
- The materialFoam costs more per job than mudjacking slurry.
- PreparationThe drilling, the patching and anything that has to be fixed first.
These are typical ranges, not a quote. We quote the whole job before we start, with no surprise charges after.
Before anything is drilled
When a Slab Cannot Be Lifted
A slab has to be structurally sound to lift, so some sunken concrete calls for a different repair.
- Badly cracked slabsA slab broken into pieces may be too damaged to lift and is better replaced.
- Soil still settlingMudjacking is a poor choice while the subsoil is still moving or the slab is badly deteriorated.
- Gravel, blacktop and paversNone of them can be lifted; they have to be replaced or re-laid.
Judging whether old concrete is sound enough to repair is the kind of evaluation the International Concrete Repair Institute writes its guidelines and training for, and it is the first thing we check on the estimate.
Why Slabs Sink
Slabs sink when the soil under them settles or washes out, and an underground plumbing leak is a cause that often gets missed.
Replacing the slab does not fix that soil, so a new pour over the same ground can settle the same way. "Void filling", packing the hollow spots under the slab, is what stops it sinking further, and a leaking pipe gets fixed before anything is lifted.
From a neighbor
What a Customer Said
Angel is very easy to work with and cares about his work along with fair prices.
- Free estimatesOn your property, with no obligation.
- A same-day answerWe answer the phone or call back the same working day.
- On timeWe show up when we say we will.
- One priceThe whole job quoted before we start, no surprise charges after.
When lifting is not the fix
Related Concrete Work
Some slabs are past lifting and some surfaces never could be lifted, and those jobs each have a page of their own.
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Concrete Driveway Contractors
A driveway too broken to lift comes out and goes back in as a new pour.
Bridgeport concrete driveway contractors -
Paver Installation
Pavers cannot be lifted like a slab, so a sunken paver walk or patio is taken up and re-laid.
paver installation
Sunken walk, step or drive?
Get the Slab Looked At and Quoted
Tell us what has sunk and where, and we set a time to come out, check that it can be lifted and put the whole price in writing.
- We show up when we say we will.
- Monday to Friday, 8 am to 4:30 pm.