Good preparation makes a concrete evaluation more useful: clear the surface, gather photos, identify utilities or irrigation, and write down when the movement or drainage issue became noticeable.
Water can pool because a slab settled, the original slope is insufficient, a drain is blocked, or runoff exceeds the intended path. The fix depends on which condition is present.
Polyurethane foam injection is a concrete-lifting method in which material is introduced beneath a suitable slab to help fill voids and raise the surface in a controlled way. A site review is needed to decide whether the slab is a candidate.
