How much lift can polyjacking achieve?

Polyjacking can achieve lifts of up to 4 to 6 inches in a single pass, though lifts greater than 2 inches are performed incrementally to allow the slab to move evenly and prevent cracking. Severely settled slabs that have dropped more than 6 inches may not be recoverable through leveling alone and may require partial replacement. Scaldino will assess the achievable lift range during the pre-job inspection.