1. Observe and protect
Note the symptoms, hold off on further damage where it's safe, and gather relevant history on the home.
2. Evaluate the house and site
Humidity trapped in the substrate, chalking, failed caulk, and long hours of direct sun determine the real preparation and coating plan.
3. Define a written scope
Put preparation, protection, materials, access, permits, testing, cleanup, restoration, exclusions, and change-order rules in writing.
4. Compare providers
Check credentials, then compare the reasoning behind each proposal, not simply its total.
5. Inspect closeout
Confirm testing, cleanup, paperwork, warranty coverage, and maintenance responsibilities going forward.