We have been using C & D Cooling and Heating for fifteen to twenty years now. They're in charge of our regular maintenance and we definitely would not continue to use them unless they consistently provided us with excellent service. The last time I called in to schedule a service appointment, I let them know that they would have to come over on the weekend or after my office hours. They immediately said, what if we send someone in twenty minutes! I said yes, and they were there as promised. The young technician who came out to the house was really, really nice and did a good job. Another plus point for them is that they are located very nearby. I love supporting local businesses and I will definitely continue to use C & D Cooling and Heating.