Several conditions can produce the same observation. An on-site assessment should test plausible causes and document limitations before a repair is selected.
Can I keep using the fireplace or appliance?
Keep away from sagging ceilings, active electrical wetting or loose masonry. Use qualified emergency help when conditions threaten occupants.
What should I photograph or record?
Photographs before surfaces dry or are repainted Rain direction, duration and delay before staining Attic observations made from safe access only Previous patches, reroofing or chimney work
What type of company should I contact?
Look for a company with relevant experience in chimney leak diagnosis and your appliance type. Confirm services, qualifications and current insurance directly.