When you need furnace repair in Denver, you need a furnace repair service company that’s ready when you need them. Rapid response to emergencies is just one of the many ways we at Controlling Systems, Inc. serve the people of Denver and its surrounding areas. You and your loved ones don’t have to suffer in a freezing property while waiting for a contractor to open on Monday morning. At Controlling Systems, Inc. we offer all our clients 24-hour furnace repair technicians, ready to come to your property and conduct repairs whether you’ve got a gas or electric furnace.