I had some periodic drain clogs so I had them out to look at that. We took a camera down the line to identify where the problem was happening and they made a video of that, and determined the problem was not on my end. While they were here I had them do a check of my hot water tank and they determined it needed to be replaced. They were able to take care of it that day, there was no need for me to take more time off from work or make another appointment. That was very convenient for me.