Watch where the water goes
Observe the patio during or after rainfall. Note puddles, water against the building, low spots at joints and any downspout discharge nearby. These observations help frame a useful conversation with the contractor.
Assess the existing concrete
Large fractures, loose sections, extensive surface deterioration and nearby retaining structures can affect whether a slab is suitable for lifting. A cosmetic surface coating does not resolve missing support beneath the slab.
Think about adjacent features
Doors, steps, walkways and landscape edges may limit how far a patio can be raised. A change at one edge can create a new mismatch elsewhere, so ask how the whole area will function after repair.
Lifting and drainage are related, not identical
Raising a slab may improve its slope in some cases, but persistent water sources or unsuitable grading may require separate drainage work. Ask which issues the proposed repair addresses and which remain outside the scope.
Prepare for a project discussion
Share approximate dimensions, photos of the slope and pooling, and the location of downspouts. Confirm service availability and request an assessment before relying on a specific repair method.