I've used A Custom Heating & Air Conditioning multiple times, over the past few years, and I've been very happy with their service. They've really been quite wonderful, even coming out, twice, to perform emergency service for my heater. I've really appreciated how responsive they are, especially in cases of emergency, and have been very pleased with their overall demeanor and competency of service. They're pleasant and easy to work with, and I'd certainly recommend them to others!