Stop and assess the source first
Cosmetic repair should not hide an active leak or unresolved moisture. If conditions may be unsafe, significant, or contaminated, use an appropriately qualified professional.
Document without disturbing uncertain materials
Photograph affected rooms and visible staining, note when it began, and describe known plumbing, roof, window, or foundation issues. Avoid opening materials when you do not understand the risk.
Define the restoration scope
Ask whether drying, removal, disposal, substrate assessment, insulation, drywall, texture, primer, paint, and follow-up are included.