Aircon Chemical Overhaul Singapore — Full Teardown for a Like-New Unit
For units that haven't been deep cleaned in years, or are showing heavy mould, blockage, or persistent odour, a chemical overhaul strips the unit down for the most thorough clean available.
What's done
What a Chemical Overhaul Involves
Unlike a chemical wash, an overhaul takes the indoor unit apart completely.
Book a visit- Full dismantling of the indoor unit's fan coil assembly
- Every component — coil, fan blades, casing — chemically cleaned individually
- Drainage system fully flushed and checked for blockages
- Unit reassembled and tested for leaks before handover
Comparison
Chemical Overhaul vs Chemical Wash
Both use chemical cleaning, but the depth of the clean is very different.
Book a visit- Chemical wash cleans components in place; overhaul removes them entirely
- Overhaul reaches buildup trapped behind the fan and casing that a wash can't access
- Recommended for units with years of buildup, not routine annual maintenance
- Takes noticeably longer than a standard chemical wash per unit
Why choose us
Why Homeowners Choose Us
An overhaul takes real skill to reassemble correctly — we treat it as a full teardown-and-rebuild job, not a quick clean.
Book a visit- Full disassembly and reassembly done carefully to avoid damage
- Every part inspected individually during cleaning, not just the visible surfaces
- Leak and performance testing done before we consider the job complete
- Honest advice if your unit's condition suggests replacement makes more sense
On the visit
What's Included
An overhaul is a longer, more involved process than a standard chemical wash.
Book a visit- Full dismantling — indoor unit fan coil assembly removed
- Deep chemical clean — coil, fan blades, and casing cleaned individually
- Drainage flush — full system flushed and checked for blockages
- Reassembly — unit rebuilt to original specification
- Leak and performance test — checked thoroughly before handover
Watch for these
When You Need a Chemical Overhaul
Signs that a wash alone likely won't be enough:
Book a visit- Strong, persistent musty smell that doesn't improve after a chemical wash
- Visible mould or black buildup on the fan blades
- No chemical wash or overhaul done in over 2 years
- Recurring leaks despite drainage being cleared multiple times
- Noticeably weak airflow even right after cleaning
How often do I need a chemical overhaul?+
Most homes need one every 1–2 years, depending on usage and environment — more often for units near kitchens or in dusty areas.
Is a chemical overhaul the same as replacing the unit?+
No, it's a deep clean of your existing unit's internal components, not a replacement.
How long does an overhaul take per unit?+
Typically 1.5 to 2.5 hours per unit, longer than a standard chemical wash due to full disassembly.