After being a customer for over 20 years my parents requested annual service today. The technician arrived, rang the bell, and immediately began banging on the door. Upon entering the home, he begins to service the unit in place. Past technicians removed the unit, serviced it outside and then returned the unit to the home. When my father asked the tech to take the unit outside, he refused, saying that it was more efficient to service it in place. They went back and forth for several minutes until I finally stepped in because my 93-year-old father was getting extremely upset. After five minutes of the tech continuing to ignore my father's request, I finally had to ask him to leave our home since he had no interest in complying with the customer request to not have his home disrupted, on his way out, he continued to be rude. When my father reached out to the office, the person who called back sided with the tech and was dismissive. Hearing the conversation, I reached out to Watersource again to let her know the situation. When she called me back, she refused to hear me out and hung up. We have reached out to another company to service our home and we will not be using Watersource again. If zero was an option for rating, that's what I would assign the Watersource