In this service

Bring the sequence of events

Note whether the mark appeared during rain, afterward or when the fireplace was being used. Mention recent roofing work, a replaced chimney cover or an earlier repair in the same area. Photographs taken safely from inside the room can help explain how the mark changed. Leave roof access to the service visit.

Keep the repair boundaries clear

The flue opening, masonry top and roof connection are distinct places to investigate. CSIA identifies crown damage and failed flashing as possible water-entry concerns. Ask whether the recommendation covers the chimney itself, the roof connection or work that needs a separate roofing assessment.

Discuss what remains uncertain

Intermittent water entry may leave an incomplete picture during a dry visit. Ask what was observed, what is still a possible explanation and what would justify further investigation. Keep interior redecorating separate from resolving the entry path so the cosmetic decision follows the repair assessment. Compare a proposed repair with the question that prompted the visit. If the issue is water on an adjoining wall, ask how the findings connect to that observation. A new exterior component should have an explained purpose, with any unresolved entry paths identified separately.