I smelled gas by our water heater. I called Amerigas and they promptly sent a technician. The technician who came to investigate was incredibly thorough. He tested the entire system for leaks and eventually found that a fitting on the inside of the water heater by the burner had a slow leak. He repaired it and then tested the entire system again to ensure that everything was ok. This speaks to the great service that Amerigas provides. I couldn't be more satisfied.