They revamped my central ac after the previous company left such a bad feeling in my gut. They redid all the ugly flexible spaceship looking flexible piping that hung down in my basement ceiling with galvanized hard metal piping that was tucked away, replaced my cracked condensor for much less than i was quoted from the last company and the whole system worked more efficient. Have had it for 2 years now with never a problem, Do not take this review as a grain of salt, I am handy man myself and a perfectionist at my work- i know the difference between good work and bad work and after seeing mid state air's work i would never recommend another company to a friend or family or anyone reading this!!!