The decision files
Illustrative homeowner scenarios, not customer projects. These examples show questions and possible paths; they do not report a real diagnosis, price or completed repair.

Illustrative scenario
A buyer has a general home inspection report but no specialist chimney record. The fireplace looks clean and the previous owner says it worked well.
Illustrative scenario
A homeowner had a missing cap replaced, yet a stain beside the chimney appears again after rain. The cap was a visible defect, but there was no written leak diagnosis.
Illustrative scenario
A fireplace begins spilling smoke after a kitchen renovation and new windows. The timing is relevant, but it does not prove a particular fan or window is the cause.
Illustrative scenario
A fireplace has been unused for several years. Before booking a cleaning, the homeowner hears chittering in the chimney and considers adding a cap.