I recently purchased a home and contacted Supreme Comfort after my HVAC fan would not shut off, even when I shut the thermostat completely off. David inspected the system and then disconnected an unnecessary component. He then waited an additional 30 minutes or so on site to ensure the system did not arbitrarily turn on again. It didn't. He was knowledgeable, thorough and very patient in explaining the potential issues to me. At the end of the service call, he gave me his direct number and advised I could call him any time if the issue reoccurred and he would come back. He was on time, professional and cordial throughout the entirety of the visit. Should I have any other HVAC issues, I would definitely utilize him again.