I have to replace the lining in the chiminey from the boiler in the basement, all the way up to the roof of a 4 storey brownstone. I’ve had two estimates, one at $6000 and one at $2000. This includes ...

i need to have the entire chimney flue/lining replaced, four storey brownstone. i’m getting wildly different estimates from $4000 up to $23,000 !!!! has anyone had this job done in their own house, ...