You wouldn't get a new car and presume you’d never have to fill the tires, replace the oil or look into weird noises. Your home comfort equipment is very much like a car engine. It’s a machine with a motor, electrical components and even fuel. So, it’s crucialto have a licensed technician perform annual maintenance on your home comfort unit in San Antonio. If not properly serviced, even the top heating and AC systems might run into troubles and has decreased energy efficiency over the years.