I have a high ceiling, with a long 6" flu on a free-standing Avalon wood stove that was new when my house was built in 1994. I recently had the chimney cleaned, and the chimney sweep (new to me, other one retired) wrote: "Top chimney section is slightly disconnected from coupler. Chimney is nearing end of expected life span. Suggest replacement. Estimate $4K-$6K." My gut feeling is to hire another chimney sweep (even though the chimney is clean) and get another opinion. Even if this is necessary, does $4K-$6K make sense???? I have never had any leakage or indication that anything is out of the ordinary. I would greatly appreciate any comments. Thank you.
![[Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler" [Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler"](https://www.hearth.com/talk/data/attachments/314/314550-123db9523509179cf5b39cd6e2d929ba.jpg?hash=37t83yJlhY)
![[Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler" [Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler"](https://www.hearth.com/talk/data/attachments/314/314547-58d3e625b56d820a415b535343ba573e.jpg?hash=ssGG2dyrSi)
![[Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler" [Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler"](https://www.hearth.com/talk/data/attachments/314/314548-ce00f03f4672bfb163d3828f56ad20db.jpg?hash=1oedu1sMnB)
![[Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler" [Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler"](https://www.hearth.com/talk/data/attachments/314/314549-20d24e604686dc3df4a2d8d52ad88ce9.jpg?hash=S8dJaztqbI)
![[Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler" [Hearth.com] Chimney sweep says "chimney section slightly disconnected from coupler"](https://www.hearth.com/talk/data/attachments/314/314550-123db9523509179cf5b39cd6e2d929ba.jpg?hash=37t83yJlhY)