Village Plumbing was out in Van Nuys, There was a leak on water heater supply line, will need to be replaced. Shower valve in master bath will need to be re-built. Faucet in kitchen is leaking and has no handle, needs to be replaced. Leaking under lav sink in front bath. remove and replace regulator with relief valve. All problems stem from the course of high pressure. Village was also in Northridge installed a new door on a Takagi Tankless Water Heater TM3-Descaled water heater and tested ran relief valve to outside. We were also in North Hollywood. Noise from fan on wall unit. Removed all compartments and found and end cap bearing out off place installed properly and installed unit. tested working fine.