Slab-jacking is a specialty concrete repair technology. The process of slab-jacking is designed to lift settled, sunken and cracked slabs by pumping a slurry mixture beneath the concrete through carefully drilled holes in the concrete at controlled pressure. The mixture fills any voids beneath the slab and raises it back to its original height. This method works well for driveways, garage slabs and homes built on monolithic slab foundations. The process is also commonly referred to as “mud jacking” and “pressure grouting” as well.