Being a certified heating and air conditioning specialist is not by any means an easy task. Some days you may get an easy job like a simple HVAC tune up or heat and a/c system repair. But then some days you get a very complex job. Like the other day I had to go to this cafe in town to repair a commercial heating and air conditioning system. Commercial heating and air conditioning systems are very detailed to repair. Especially when they are a rooftop HVAC system like this commercial heat and a/c unit was! On top of that, I had a deadline that I had to meet. The commercial heating and air conditioning system which was a rooftop HVAC system had to repaired by lunch hour when they opened up. This was not something I could guarantee but I had to do my best since that is the policy of the heating and air conditioning company that I work for. Lucky for me I was able to actually get this monster rooftop HVAC system repaired with only 20 minutes to spare before the deadline! It was a very stressful to say the least, but it was done. So just this story alone should show you that if you think being a certified heating and air conditioning specialist is easy if you know what you are doing, it is not. You could be the best possible heat and a/c professional in the HVAC business and still have a very hard challenging time with some heating and air conditioning repair jobs you will come across in your career in the HVAC business!