
Sunken Patio Slab Leveling
Sunken patio slab leveling raises a settled patio section that has dropped at a corner or edge, creating a tilted surface, a gap beneath the slab, or a low spot that holds water. It applies to Gilbert patios where the concrete is intact but has lost elevation or support.
Lifting material — polyurethane foam or a cementitious slurry — is introduced beneath the settled area at lift points to fill the void and bring the patio back toward level, with attention to the surface slope away from the home and the control and expansion joints.
The result is a flatter, more usable patio with improved drainage and a reduced trip edge, preserving the existing patio slab instead of replacing it.



