Do you know who to call when the heat goes out in your home?
If the heat goes out in your house you want to try and find the best residential HVAC contractors your area has to offer. Be sure to try and find a few options and then compare their reviews and most recent work performed. As far as work performed you want to make sure that they have taken on other residential heating and cooling jobs. Not all HVAC companies are equipped to do AC repair work on home units.
Once you have found the company that best fits your needs call them and set up a service call. They will send one of their employees out to your house and have them take a look at your heating system and air unit. Once they have figured out the problem they will notify you of it and tell you exactly what needs to be done to get the heat back on.