I can regularly tell when someone is an expert in their field, however i know because when I ask questions, they answer flawlessly, plus they are able to make their way around their machines as if they were born to do it, then the example I am thinking of is the Heating plus A/C professional that comes plus does our Heating plus A/C repair every year, then my friend and I have a Heating plus A/C tune up in the Springtime plus the fall, right before the harsh seasons, however out of curiosity, plus slightly because I wanted to test this heating plus cooling specialist, when she first arrived at our home, I asked him some air conditioning questions, some difficult, plus some self-explanatory, she answered them instantly plus was proper every time, I was impressed… Now, why would I bother asking a Heating plus A/C worker these questions, I mean, they are a heating plus A/C worker, so they should know what they’re doing right? Well, not regularly. I have in the past had heating plus A/C specialists that would come to my home, plus they would have no idea what they’re doing. I would watch them from my window work on the central air conditioning, plus some of these cooling “professionals” would be poking at the cooling component like it was a foreign object, shaking my head, I made sure to start asking questions to the cooling techs at the start. I want an actual certified cooling dealer. Thankfully, like my new air conditioning dealer, there are some fantastic cooling professionals that know what they’re doing.