MountainStoveGuy said:all masonry chimneys need insulation to bring them up to code. if you think otherwise check out this thread https://www.hearth.com/talk/threads/32931/.
insulation is required for UL1777, and for good reason. The price seems ballpark to me consider thats about a grand worth of material, $400 worth on insulation, and then labor.
Thanks for your input. I respect your opinion, but you seem to be in the minority. How do you get to a grand of material, not including the insulation?