The Rocky Top techs were professional, knowledgeable, and easy to work with. Chris, super nice to work with, explained everything he'd done and told us how the hvac units were working. He also checked with the company that made our HVAC unit and learned that our warranty is good thru April 2034. The young man (sorry, can't remember his name) responsible for plumbing checked everything within his realm of responsibility and was super to work with. He sent a bid for a new hot water heater which we don't need at this time. We are pleased with Rocky Top representatives.