Slab jacking is a method used to lift and stabilize sunken concrete slabs, such as driveways, sidewalks, and foundations. This technique involves injecting a special grout or polyurethane foam beneath the slab, which fills voids and raises the concrete back to its original level. The process is often preferred because it is less invasive and more cost-effective than replacing the entire slab. It can help prevent further damage and improve the appearance and safety of the surface. Slab jacking is commonly used in both residential and commercial properties to address settling issues.