PREMIUM CONCRETE SYSTEMS CONCRETE LEVELING
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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.

Illustration of the three steps: drill a small hole, pump foam under the slab, patch the hole
  1. 1

    Drill

    We drill a few small holes, about the size of a dime, through the sunken slab.

  2. 2

    Inject & lift

    Foam expands underneath, fills the voids and raises the slab while we watch the level.

  3. 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.
Illustration comparing the small 5/8-inch holes used for polyurethane with the larger holes used for mudjacking
2 lbs per cu. ft.Foam is light on your soil. Mudjacking slurry weighs about 100 lbs per cubic foot.
Scale showing polyurethane foam at about 2 pounds per cubic foot and mudjacking slurry at about 100 pounds
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

See if foam lifting is right for your concrete.

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