A chimney that drew fine for twenty years can change the weekend after the attic is sealed. What tightening the house does to the draft, and to the flue.
A chalky white bloom on chimney brick is more than a surface stain. Learn what efflorescence is, why it forms, and when it flags a leak worth fixing fast.
Scratching, odd smells, or smoke that backs up into the room can mean an animal moved into your chimney. Learn the warning signs, the risks, and what to do.