Mudjacking vs Foam Lifting: Level a Sunken Slab
If one side of a driveway or sidewalk has dropped, mudjacking or polyurethane foam lifting may raise it without a tear-out. A short look at both methods. Have a contractor inspect the slab before you decide.
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Transcript
If one side of the driveway dropped, you may not need a tear-out. That's what concrete leveling is for. Mudjacking pumps a cement-and-sand slurry under the slab through drilled holes, and the pressure lifts the panel back toward grade. Polyurethane foam lifting does the same job with expanding foam, usually through smaller holes. Concrete leveling is the umbrella term. Mudjacking is the word a lot of homeowners search. Both can work when the slab itself is still sound. If the base keeps washing out, or the slab is badly cracked, replacement may be the honest answer. Get a local inspection, and find a leveling contractor at concretenear.com.
Photo credits
- A trip edge on a walk. Acabashi · CC BY-SA 4.0 · File:A trip hazard on Philip Lane, Haringey, London 01.jpg · attribution required.
- Uneven sidewalk panels. Marek Ślusarczyk · CC BY 3.0 · File:031 Sidewalk environmental damage - dangerous sidewalk with concrete paving tiles, Bytom, Poland.jpg · attribution required.
Original teaching diagrams drawn in Python (PIL/NumPy). No AI-generated imagery. Music: none.