1. Start by documenting
Note what you're seeing, keep further damage from spreading where it's safe to do so, and gather any relevant history on the house.
2. Evaluate the house and site
What's visible growing is just one symptom, not the full picture. A lasting plan accounts for where water is entering, ambient humidity, material condition, containment, and verification once work wraps up.
3. Put the scope in writing
Spell out prep work, protection measures, materials, how the crew will access the area, permits, testing, cleanup, finish restoration, exclusions, and how change orders get handled.
4. Weigh providers, not just prices
Check credentials, and look at the reasoning and boundaries behind each proposal rather than just the bottom-line number.
5. Close the loop
Before calling it done, confirm final testing results, cleanup, paperwork, warranty coverage, and whatever maintenance is left on your plate.