1. Document first, protect second
Record the symptoms, limit additional damage if it's safe to do so, and collect relevant background on the property.
2. Look at the house and its site conditions
Surface growth is only part of the picture. A workable plan runs down the moisture source, weighs humidity and material condition, contains the work, and confirms the result.
3. Get the scope in writing
Get preparation, protection, materials, access, permits, testing, cleanup, finish restoration, exclusions, and change-order terms in writing.
4. Weigh the proposals
Check credentials first, then compare the reasoning and limits behind each proposal rather than just the bottom line.
5. Confirm before final sign-off
Before signing off, confirm testing, cleanup, documentation, warranty terms, and remaining maintenance responsibilities.