Both Gary and Leith did a good job in identifying and repairing the problem with the water heater. Since the heater was only 6 years old ( we did not know this, when we bought the house 4 years ago and Gary found this information on the internet), it did not need to be replaced. Simultaneously, the expansion tank was replaced ( the price seemed to be a little bit on the high side) and secured. Overall a good job!!