Water heater not working upon arrival. Customer stated he attempted to fix the water heater after the pilot light wouldn’t light. After looking noticed water heater to be 10 years old. Informed customer we would not be able to repair the water heater but we could replace it. Gave customer estimate, customer approved estimate. Installed new Rheem 50 gal gas tall with a new expansion tank, shutoff valve, pan and gas whip. Turned water back on to check for leaks and found none. Fired water heater up and set the temperature to 120 degrees. Water heater is fired up and no leaks upon departure