Mr. Hitzke, Madison, was pleasant, thorough, PATIENT with my questions (and a good teacher!), courteous by wearing a mask without my asking and all around helpful. I had not looked forward to this service appointment, but now I feel I have a good idea of what to expect going forward. He improved the performance of my heating system with the work he did today and laid out a plan to make it better if and when I choose. He represents his company very well!