When I phoned for service to our water heater on a Saturday afternoon, I was given a service call time for the following morning. The next day, Stephen S. arrived in the early end of our estimated call time, giving a friendly "I'm on the way" call first to let me know. When he arrived a few minutes later, he was friendly and professional, got straight to work. Within minutes he diagnosed the issue with the water heater, replaced the part in question and explained the situation and future options to me clearly. If he is an example of the typical service offered by Flan Air, I would highly recommend calling them to take care of any water heater issues that may arise in your home. Couldn't have asked for better service, thank you!