Replace thermal expansion tank on 50 gallon natural gas water heater in attic Price doesn’t include replacement of water heater or any other repair Upon arrival customer explained that the thermal expansion tank was leak at water heater in attic she then showed me to attic and I found that it was leaking and water heater is 12 years old explained to customer average life of a water heater is 8 to 10 years she stated that she was aware and that her home warranty would pay to replace it but not the thermal expansion tank Provided options including replacement options customer stated she will wait until it leaks so her home warranty will cover it but wanted me to move forward with the replacement of expansion tank so shut water off at heater and replaced thermal expansion tank after replacing turned water back on and found no leaks ran water to remove air and shut off after running clear made customer aware she still get some air and discoloration but should clear up soon