T&P valve leaking upon arrival. Customer stated he believed he had the water heater set on too high of a temperature and now the T&P valve is leaking. Also noticed expansion tank full of water and not supported properly. Informed customer we could replace both the T&P and the expansion tank as well as mount the expansion tank. Gave customer estimate, customer approved estimate. Installed new T&P valve and new expansion tank supported by a mounting bracket. Turned water on to check for leaks. Found no leaks. Fired up water heater, water heater is working properly. No leaks upon departure