Water heater leaking upon arrival. Customer stated his water wasn’t always hot. After noticing old water heater was leaking and the t&p was running constantly. Informed customer we could replace the water heater. Gave customer estimate. Customer approved estimate. Installed new 50 gal gas tall Rheem water heater with a new expansion tank, shutoff, and a pan. Turned water and gas back on to check for leaks. Found no leaks. Water heater is fired up and working properly upon departure. No leaks upon departure