Part of the Best 10 Singapore Glossary › Tech & Gadgets › Chemical Wash
An aircon chemical wash is a deep cleaning service where a technician partially dismantles your air conditioning unit and cleans its internal components using chemical solutions. It goes significantly further than a standard general service.
Chemical Wash vs General Servicing
| Service | What’s Done | Price (SGD) |
|---|---|---|
| General Servicing | Filter clean, coil wipe, check drainage | $25–$50/unit |
| Chemical Wash | Chemical flush of coils, fan, drain tray — removes mould & bacteria | $80–$150/unit |
| Chemical Overhaul | Full dismantle, chemical soak of all parts, reassemble & test | $150–$250/unit |
When Do You Need a Chemical Wash?
- Your aircon has a musty or mouldy smell
- It’s been over 12 months since the last deep clean
- The unit is not cooling effectively despite regular servicing
- You see black spots or discolouration around the vents
- Water is dripping more frequently than usual
In Singapore’s humidity, mould and bacteria grow inside aircon units rapidly. A chemical wash eliminates these effectively and is recommended every 12–18 months for residential units.
📖 Deep dive: Want to understand the full difference between all 3 levels of servicing including cost breakdowns? Read our full guide: Aircon Chemical Wash vs General Servicing — What’s the Difference?
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