Concrete lifting is a process used to raise sunken or uneven concrete surfaces, such as driveways, sidewalks, and patios. This technique often involves injecting a material, like polyurethane foam or a cement-based mixture, beneath the concrete slab. As the material expands, it fills voids and lifts the concrete back to its original level. This method is preferred over traditional replacement because it is typically faster, more cost-effective, and less disruptive. Concrete lifting can help improve safety by eliminating tripping hazards and enhance the appearance of outdoor spaces. It is a practical solution for maintaining the integrity of concrete structures.