The first technician arrived and spent nearly 5 hours in my house going back and forth on the phone with someone who was helping him diagnose the problem. At the end of the night he said he had gotten it to work and charged me $734.04 for his visit. The unit was still not working, so the next day they sent over a second technician. This person took a wire - ran it from my basement - up 4 levels to my top floor hallway and then taped a new thermostat to my wall. Then he charged $1,088.11 on our credit card for this shoddy, unsafe work. They took advantage of the fact that my wife and I were at work and my 84 year old mother was here with them. So far, we have paid this company $1,822.15 and NOTHING HAS BEEN FIXED!! Actually, now we have condensation issues. By the way, when I called them regarding this situation today, no one would get on the phone to talk to my wife.