1. Observe and protect
Note where the problem showed up, hold off on further damage if it's safe to, and gather any past repair records for the unit or house.
2. Evaluate the house and site
On the island that means checking balcony doors and shared walls; on the mainland it means checking the slab perimeter and AC closet — the location changes what you're actually looking for.
3. Define a written scope
Get specifics on prep, protection, materials, permits, testing, cleanup, restoration, exclusions, and how change orders get handled.
4. Compare providers
Weigh how each provider explains their approach and where they've drawn the scope line, not just their bottom-line number.
5. Inspect closeout
Before signing off, confirm test results, cleanup, documentation, warranty terms, and anything left for you to maintain.