While it will depend on how severely damaged the AC has become and also what parts are needed (and whether or not they are on hand), barring these factors it’s usually a matter of anywhere between 3 and 6 hours of work.

For instance, residual gas has to be removed, air vents need to be cleaned, and things like removing the cooling coil and replacing fans are just a few examples of what goes into this kind of work. As such, it’s a good idea to make sure that you go with a mechanic who knows the make and model of your vehicle well – The more familiar they are with the vehicle and its AC system, the more efficiently it may be serviced.