Chimney mortar crumbling or deteriorating
hard 3–8 h
Steps
- Inspect from the ground with binoculars first, then from a ladder set beside the chimney — not on the roof — and note whether the damage is a few joints or every joint.
+5 more steps in the full guide
Stop and call a pro if
- the chimney is above one storey and cannot be reached from a ladder — that is scaffold or roof work
Rules in the Netherlands: Bij een monument of beschermd stadsgezicht kan voegwerk vergunningplichtig zijn — check bij de gemeente vóór je begint.