1. Observe and protect
Note where the water shows up, limit further damage if it's safe to, and hold onto anything relevant from earlier repairs.
2. Evaluate the house and site
A useful look accounts for foundation type, pipe material and age, water pressure, and how the property drains toward the marsh or street.
3. Define a written scope
Everything from prep and materials to permits, testing, cleanup, and what's excluded should be in writing before work starts.
4. Compare providers
Weigh the reasoning behind each proposal, not only its total—two bids solving different problems aren't really comparable.
5. Inspect closeout
Confirm the work was tested, the site was cleaned up, and you understand what warranty coverage and upkeep remain your responsibility.