We had an issue with the water heater where it was producing a loud metal noise, but of course, by the time we had a technician come out to look at it the noise had stopped. Instead of just dismissing the issue since it was not affecting the actual water temperature, Tony spent time trying to troubleshoot the issue by reproducing the noise, which he successfully did. He came back in the morning with the necessary part and fixed the issue for us. He even provided a report for us with the work completed which we had never received before. We really appreciated the time he took to diagnose and correct the problem and even explained the issue to us in detail.