Chimney Leaking — Flashing & Crown Leak Detection
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Common Water Issue in BC

Chimney Leaking — Flashing & Crown Leak Detection

Chimney leaks are a common cause of attic and ceiling water damage in BC homes. Failed flashing at the roof-chimney junction or a damaged chimney crown are typical sources.

Possible Causes

  • Failed step flashing at chimney-to-roof junction
  • Cracked or deteriorated chimney crown allowing water entry
  • Damaged or missing chimney cap allowing rain entry
  • Cracked clay flue liner allowing water penetration
  • Failed caulking at flashing-counterflashing junction

Recommended Steps

  • 1Check attic around chimney for water stains or damp insulation after rain
  • 2Inspect chimney crown from ground or safely from roof for visible cracks
  • 3Check chimney cap condition and verify it is properly attached
  • 4Look for staining on exterior chimney walls indicating water running down
  • 5Call professional roof leak detection with thermal imaging for concealed flashing issues

Need Professional Help?

Don't let a small leak become a big problem. Contact LeakInspections.ca — a division of Anyleak.ca and Leak.ca — for expert diagnosis.