Keeping your HVAC companies durham system in proper working order is one of the keys to making a hot southern summer bearable. After the cool breezes of spring mature into the hot winds of summer, we close our windows and set our thermostat to a level that keeps our brows from sweating and lets us keep our mind on something besides the heat, at least when we're indoors. But if you've ever experienced a failing air conditioning system, then you know that, until it gets fixed, the one and only thing on your mind is the heat. Without air conditioning, the stony facades of older southern homes can turn them into proverbial ovens, and electric fans and open windows rarely make things more comfortable. Despite visions of large repair bills dancing in our heads, after a few days of endless tiredness and sweat, most of us take the plunge and call an air conditioning service.