Aircon Chemical Overhaul Singapore

An aircon chemical overhaul is the deepest cleaning service available. The indoor fan coil unit is fully dismantled — fan blower, drain tray, casing, electrical components — and each part is cleaned individually with specialised chemicals. This catches issues that even a chemical wash cannot reach: PCB corrosion, fan blade grime, hidden mould inside the casing, and accumulated debris in cavities.

Aircon Chemical Overhaul

Number of Units	Price (incl. GST)	Per Unit
1 unit	$160	$160.00 / unit
2 units	$300	$150.00 / unit
3 units	$420	$140.00 / unit
4 units	$520	$130.00 / unit
5+ units	$130 per unit

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What's included

Free 9-point pre-check before any work
Full disassembly of indoor fan coil unit
Individual chemical cleaning of every component
Coil deep treatment with anti-bacterial solution
Fan blower wheel cleaned and balanced
PCB inspection and dust removal
Anti-rust coating on metal components
Drain tray and pipe pressure-cleaned
Full reassembly and 5-point performance test

✅ Good for

Aircon over 5 years old without prior overhaul
Units with persistent issues despite chemical wash
Heavy mould infestation or strong odour
Units showing reduced cooling after chemical wash
Pre-rental property aircon refresh

⏱ Duration: 2–3 hours per unit

🛡 Warranty: 90 days workmanship warranty

Frequently asked questions

Chemical wash vs chemical overhaul — which do I need?

Chemical wash cleans the coil without disassembly — good for routine deep cleaning every 6–12 months. Chemical overhaul fully dismantles the unit and cleans every component individually — recommended every 2–3 years, or sooner if your unit has serious fouling, persistent odour, or hasn't been overhauled in years.

How much does a full HDB aircon overhaul cost?

For a typical 3-bedroom HDB flat with 3 fan coil units, a full chemical overhaul costs $420 (incl. GST) at aircons.sg. 4-bedroom flats with 4 units cost $520. Pricing covers complete disassembly, individual component cleaning, and 90-day warranty.

Will chemical overhaul make my aircon work like new?

For units under 8 years old in good mechanical condition, yes — overhaul can restore most of the original cooling performance. Older units or those with worn compressors will improve significantly but may not fully recover original specs.