I have been using Clyde S Walton Inc. for many years now. They are absolutely perfect or very close to it. I cannot give them a perfect five because well it may jinx their near perfect service. They are quick with their service and arrive on time and very professional! For this visit, they checked out the heater and made sure that it was in good running condition and made any necessary repairs. Everything is running smooth, the visit went smoothly with no issues. I would like to thank them for the many years of wonderful service!