Mudjacking in Waterloo, Iowa
A cement-based slurry pumped under the slab fills the empty space and lifts the concrete back into place.
Mudjacking has been used on Midwest sidewalks and driveways for decades. The contractor drills holes through the slab, usually an inch or more across, and pumps in a slurry of cement, water and fill such as sand or soil. The slurry fills the void and, as pressure builds, raises the slab. When the slab is level, the holes are packed and patched.
When is mudjacking a good fit?
- Large, plain slabs like long driveway sections and wide sidewalk runs
- Voids where a dense fill is wanted to support the slab
- Jobs where cost matters more than hole size or speed
When might foam be better?
- Garage floors and steps, where bigger patches are more noticeable
- Slabs over soft, wet ground where extra weight is a concern
- Jobs that need to be back in use within hours
Mudjacking and foam side by side
| Mudjacking | Foam | |
|---|---|---|
| Fill | Cement-based slurry | Two-part polyurethane |
| Hole size | Typically an inch or larger | Roughly 3/8 to 5/8 inch |
| Weight under slab | Heavy | Light |
| Back in use | Usually after it firms up, often a day | Often the same day |
| Usual cost | Lower | Higher |
How long will it last?
That depends mostly on water. Slurry that stays dry under a well-drained slab can support it for years. Slurry next to an open joint or a downspout outlet can be undermined the same way the original base was. Sealing the joints and moving roof water away after the lift makes the biggest difference.
What drives the price?
- The size of the slab and how deep the void is
- The number of holes needed
- How far the rig has to reach from the street or driveway
- Whether cracks and joints are sealed afterward
Every slab is priced on site, after the contractor measures the drop and figures out what washed out or settled underneath. We don't publish or quote prices, and a figure given over the phone before anyone has seen the concrete is only a ballpark.
Where we connect you with help
Common questions
Is mudjacking the same as slabjacking?
Yes. Both names describe pumping a cement-based slurry under a slab to raise it. Some contractors also use the term pressure grouting.
Will mudjacking holes show?
The holes are patched with a cement mix, but they're larger than foam holes and usually remain visible. On a garage floor or front steps, ask whether foam would leave a cleaner finish.
Related services
- Polyurethane foam concrete leveling
- Sidewalk leveling and city notices
- Driveways, garage floors, steps and patios
- Joint sealing and crack repair
More background: Waterloo, Iowa concrete leveling guide.
Sidewalk flagged in the city's zone inspection, or a garage slab that keeps dropping?
Call the number above and an independent Waterloo-area concrete lifter can come measure it and quote the fix.