The only way to know what condition your chimney flue is in is to have it inspected by camera. Some engineers are now recommending a camera inspection before buying a house because relining a chimney flue can cost thousands of euros. Something nobody needs after just buying a property.
A camera inspection after a chimney fire is wise. Your insurance company will insist on it.
A camera inspection after a chimney fire is wise. Your insurance company will insist on it.