Slab jacking raises concrete slabs and fills underlying voids using the controlled injection of Portland cement grout.

Slab jacking illustration

Common uses

Relevel slabs
Fill voids


Holes are drilled through the concrete slab through which the grout is injected while monitoring the elevation of the slab surface. The treatment results in filled voids and a releveled and stabilized concrete slab.


Can be performed in low headroom
Allows business to remain fully operational