Not sure what the negative reviews are about. These guys were by the far the most professional and knowledgeable technicians we dealt with. We had 4 contractors quote us on a complete air system replacement and the addition of an air conditioner. Not the cheapest bid, but you get what you pay for. They estimated a 2-day install and finished the entire job in 6 hours. Came home from work and everything was working and our house was clean. Didn't know they were ever there. Fantastic service and professionalism.