Matthias came out to do a chimney sweep. He discovered that I had a cracked flue liner that needed to be replaced with a new steel liner. He gave me an estimate of the repair that also included a new chimney cap, replacing damaged firebrick, and fixing my hearth. Matthias is a Professional! He is very personable and extremely knowledgeable. Matthias and his team showed up on time and worked hard the entire day! I was impressed with their work ethic and craftsmanship! If you have any fireplace problems, I highly recommend 2nd Generation Chimneys!