While mudjacking can lift sunken slabs on private patios or driveways, it is rarely accepted as a permanent fix for NYC public sidewalks. The underlying cause of settling in NYC—such as leaking utility lines or poorly compacted urban soil—often causes mudjacked slabs to sink again over time. Re-pouring the sidewalk flag over a newly compacted subbase is the DOT-approved solution.
← Back to Full Glossary