Yes, we fix cars. Air conditioning related and general repairs.
Compressor fail for a reason. It is important to find out why the compressor failed before installing a new unit. This process will keep you from replacing the compressor multiple times. 80% of compressor failure is due to a lack of lubrication (oil) or a restriction in the system. 60% of the oil in the a/c system should stay in the compressor. Therefore, if the the total amount of the oil in the system is 6 ounces, then the compressor should contain 4 ounces of oil.
As the refrigerant circulates through the system it carries the oil and returns it in to the compressor. If the old compressor that failed had no oil or insufficient oil, the system has a refrigerant leak or a restriction which is preventing the return of the oil to the compressor.
Debris and restrictions in the system prevent the correct amount of oil from reaching the compressor. If the leak is not repaired or restriction remains, the new compressor will fail!