Hans Phillip Plumbing was referred to me by a Schimels Inspections Service. My water heater was leaking and I called Hans early in the morning. By mid morning his son had arrived with a new unit. Before he started the installation he inspected my unit and pointed out to me that I had a few months left on a 9 year warranty. After calling the manufacture David advised me that the unit would be replaced under warranty. I was prepared to pay for a new unit. I appreciate the company's integrity, prompt service, quality workmanship, and followup. I highly recommend this company.