Aircon chemical wash Singapore Aircon pricing varies depending on the FCU. The prices start from $55/FCU for 10 FCU and above. The highest price you can pay for a chemical wash is $350 for 5… Contact Us Address:531 Upp Cross St, #04-98 Hong Lim Complex, Singapore, Singapore Phone+65 8505 9699 +65 8505 9699 email:[email protected] http://airconman.sg/chemical-overhaul