Chung was very helpful and professional. He came on a Sunday after we noticed hot water tank wasn't working. We discovered a small sewage backup at the same time and called him immediately. He arrived within a few hours and snaked the main sewage line. While there he quoted us for a new hot water tank and was able to install it on the following Tuesday. He kept us informed about everything he was doing and was very honest to deal with. Thanks Chung.