HOW FOAM LIFTING WORKS
Small holes, a few hours, and your slab is level again.
Here's what happens on a typical job, and how foam lifting compares with mudjacking and tearing out the concrete.
HOW IT WORKS
Three steps, usually done in a few hours.
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1
Drill
We drill a few small holes, about the size of a dime, through the sunken slab.
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2
Inject & lift
Foam expands underneath, fills the voids and raises the slab while we watch the level.
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3
Patch & go
We patch the holes and clean up. The foam cures fast, so you can usually walk and drive on it the same day.
WHY FOAM
Foam lifting compared with the alternatives
5/8″ holesAbout the size of a dime. Mudjacking needs holes roughly 1 5/8″ across.
2 lbs per cu. ft.Foam is light on your soil. Mudjacking slurry weighs about 100 lbs per cubic foot.
| Foam lifting | Mudjacking | Tear out & replace | |
|---|---|---|---|
| Holes in your slab | A few dime-size holes | Larger holes | The whole slab comes out |
| Weight added to the soil | Very light, so it doesn't push weak soil down further | Heavy slurry | New concrete on the same soil |
| Back in use | Usually the same day | After it cures | Days to weeks |
| Moisture | Won't wash out | Can erode over time | Depends on base prep |
| Cost | Usually far less than replacing | Similar to foam | Highest |