Is Your Chimney Leaking?

Common Causes of Chimney Leaks

  • Damaged or missing chimney cap
  • Damaged bricks or worn-out mortar
  • Cracked chimney crown
  • Deteriorated or missing chimney flashing
  • Condensation build-up inside the chimney

Signs Chimney is Leaking

  • Water or condensation in firebox or the sound of dripping in the chimney
  • White staining, also known as efflorescence on exterior masonry
  • Water stains on the walls or ceiling near the chimney
  • Damp walls or ceiling near the fireplace/chimney
  • Strong musty odors, especially after it rains
  • A damper that is squeaky from rust and is hard to move
  • Cracks in the masonry

What to do About a Leaky Chimney

  • Chimney cap repair or replacement
  • Chimney flashing repair or installation
  • Chimney crown repair or rebuild
  • Tuckpointing to replace decayed mortar joints
  • Brick replacement
  • Complete or partial chimney rebuilding when the chimney damage is severe


For most chimney leaks it is best to leave this to the professionals and contact a reputable chimney contractor right away. Even if there are not issues with the chimney, it should be cleaned and inspected by a professional chimney sweep at least once a year.

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