I need to take the plunge this fall and have my chimney re-lined with stainless steel. Currently venting my Castine into my masonry chimney using the 4' stub. I just had someone come out yesterday to give me a quote, and I'm a bit blown away, but I want to make sure I'm not just being cheap. I have a 1 1/2 story cape, with the wood stove on the first floor. The chimney is central to the house. The quote for the 6" forever flex liner didn't indicate the length of the liner, but I'm guessing 25', 30' tops. He wants $1,700 for the liner, and $390 for insulation, installed. He also insists the insulation is required to meet code, but I'm not so sure. I'd like to use the guy because I found him through a good friend who is happy with his work, but I don't want to get ripped off. Any thoughts from the experts or those with experience would be very helpful.