Anybody out there know of, or own/work for, an honest AC repair/install company? I've had it with paying $75 just to come out and tell me what it will cost to fix/replace. I live in a mobile home with central ac/heat, and it's blowing warm air. My friend tells me I have 'a blockage in the freon metering capillary tubes." Anybody?? Also looking for suggestions on a ductless system. TIA