When I called and made the appointment, their first question was do you have a home warrenty. I dont. The technician came and said the freon was not low, but I have a bad compressor that could not be fixed. He said the AC Unit was a discontinued model that parts were very difficult to find and expensive and it used a type of freon that was no longer compliant. The low estimate to repair was $5500. Its pretty obvious I know nothing about A/C. I thought to get a second opinion. The new company said I just needed the refrigerant topped off and screws replaced as there was a leak. The compressor is not broken and I already DO HAVE THE NEW KIND OF REFRIGERANT. They filled it up for $265 and we are up and running again.