Pride Plumbing was called out for a water leak at a 40-gallon American natural gas water heater. Our inspection found that the leak was coming from the water heater's Amtrol thermal expansion tank. We cut out the old thermal expansion tank and installed a new HydraPro HPTET2 model, tying the expansion tank into the existing water supply line with new copper piping and fittings. We also provided a cost estimate to replace the water heater with a new 40-gallon natural gas model. This would include removing and disposing of the old water heater after disconnecting its electrical connections, and vent, gas, and water lines; and installing the new water heater, water and gas ball shut-off valves, new water and electrical connectors, brass drain valve, and atmospheric vent; ensuring that the unit is properly vented, lighting its pilot, and setting it to its appropriate operating temperature.