Tips Around the Clock ATC FAQ: When you install my new AC, how long will the installation take? ATC FAQ: When should I replace my AC? FAQ ATC: Why is my AC leaking? FAQ ATC: Why is my AC freezing up? FAQ: ATC Why does my system need more freon each year? ATC FAQ: What does energy efficient model mean? ATC FAQ: What should you set your thermostat at before you leave for the day? ATC FAQ: What's new in tech for air conditioning? ATC FAQ: What does an air handler do for my system?