Chemical Overhaul in Singapore

Most thorough cleaning method — complete disassembly of the indoor unit for chemical soaking of every component.

Frequently Asked Questions

How much does an aircon chemical overhaul cost in Singapore?
An aircon chemical overhaul in Singapore costs S$60–S$220 per unit, with an average of around S$140 per unit based on prices from 43+ companies. It is more expensive than a chemical wash because it involves full disassembly.
What is an aircon chemical overhaul?
A chemical overhaul is the most thorough aircon cleaning method. The indoor unit is fully disassembled and every component — evaporator coil, fan blower, drainage tray, and casing — is soaked in chemical solution, rinsed, dried, and reassembled. It restores the unit to near-new condition.
When do I need a chemical overhaul?
A chemical overhaul is recommended when your aircon has heavy mould buildup, persistent bad smell after a chemical wash, reduced airflow, or has not been deep-cleaned in 2–3 years. It is also advisable before moving into a resale flat or after a long period of non-use.
How is a chemical overhaul different from a chemical wash?
A chemical wash cleans the unit in place without full disassembly and is suitable for annual maintenance. A chemical overhaul involves complete disassembly and is recommended for heavily soiled units or as a 2–3 year deep-clean. Overhauls cost more but provide a more thorough result.
How long does a chemical overhaul take?
A chemical overhaul for one unit typically takes 1.5–2.5 hours. For 3–5 units, expect a half-day appointment (3–5 hours).

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