I first used JTR a few years ago after being«stood up» by another HVAC company when my AC quit — you know, waiting hour after hour for someone to come in a 4 hour interval, then having them never come. Since then, I have had JTR out to my house in Crete a number of times for service on my furnace and maintenance on both the AC and furnace. They are prompt and nice when they come. I usually can get an appointment the same day. The one time that the repair was not complete(a faulty capacitor was installed), they returned the very next day and fixed the furnace for free. I will continue to use them and refer them to friends and family.