I arrived for a new customer no cool call. I inspected the system and found that they are remodeling. The evaporator coil in old rusted and completely stopped up as well as the blower wheel. I made it aware to the homeowner that this system will have to be recovered due to it not having service valves and the system disassembled and cleaned. I explained that the condition of this system is poor and it can cause damage to the evaporator coil by trying to clean it. The homeowner did not want to clean the system at this time.