Greetings, fireplace experts. We had our chimney cleaned by a commercial cleaning service, which proceeded to condemn our fireplace, indicating that we don't have a chimney cap, the smoke chamber needs to be parged (I think they mean "purged") and the liner needs to be replaced. All to the tune of $10,000. We have no reason to disbelieve the company, but would like to get a couple of more expert opinions. Any advice as to where to go? Also, would this be a reasonable (if you can call $10,000 for anything reasonable) expense for all of this work? Thank you. And, Happy New Year.