2nd Generation came out to install an insert in the old fireplace and a chimney liner. They were exactly on time, extremely professional, they explained everything and answered all of our questions. The insert has a fire going in it right now, so wonderful to have a safe fire to enjoy again, and peace of mind if the power goes down to have heat available. I highly recommend 2nd Generation Chimney, they are wonderful people, a pleasure to work with, they get the job done correctly, and are very good at what they do.