LS Aircon Servicing Singapore is an air conditioning servicing firm based at Edgedale Plains in Punggol, and it works with homes and businesses in the area. Its work covers aircon installation, repair, overhaul, general servicing and chemical washes, and it tops up refrigerant when a system needs it. The chemical wash and general service are the regular jobs, and they help keep units cooling well and the air cleaner. The firm's technicians are trained in installation and maintenance, and the website says the team works to a set standard on every job. The unit is on level 14 of the building, so call ahead when you arrive.