Servicing · Cleaning · Maintenance
Aircon chemical overhaul
Full strip-down and deep clean. The next step when chemical servicing's already been tried and the problem came back. We’ll assess first, then confirm whether this is the right scope before you book.
BCA-Registered10,000+ Cases Completed
What chemical overhaul covers
Chemical overhaul is the strip-down: the unit comes off the wall, the drain pan and blower come out, and every accessible surface is cleaned by hand. It's the deepest indoor clean, for heavy contamination or issues that in-place washing can't reach. Common situations where it fits:
Problems returned after a recent chemical servicing
Contamination's sitting deeper than in-place cleaning can reach.
Heavy mould visible on the coil and blower
In-place washing can't get behind it to remove it properly.
Smell persists after chemical servicing
Mould's likely embedded in the drain pan or blower housing.
When chemical overhaul isn't suitable
Overhaul is the deepest indoor clean, but not every problem is caused by dirt.
Unit not cooling despite a clean system
Likely low refrigerant or a compressor fault, not contamination.
Error codes or blinking lights
Sensor or PCB issue. Cleaning won't fix it.
Loud mechanical noise from the outdoor unit
Motor or bearing wear on the condenser side, not an indoor cleaning issue.
What you get
The outcome should justify the strip-down.
Coil cleaned from both sides
Front and back access that in-place washing can't achieve.
Drain pan and housing fully cleaned
We get to mould in spots chemical servicing can't reach.
Fault visibility
Full strip-down exposes corroded joints, worn bearings, or cracked components that routine servicing misses.
How a chemical overhaul works
From your message to a stripped, cleaned, and reassembled unit, here is what happens on the day.
You tell us what's going on
The symptom (a smell or buildup that came back after chemical servicing) and what's already been tried.
We confirm it's warranted
Overhaul is the deepest, and priciest, indoor clean. If a chemical servicing would still do, we say so. Not every unit needs a strip-down.
We take the unit down
The unit comes off the wall and the drain pan and blower come out, for front-to-back access in-place cleaning can't reach.
We clean every surface by hand
Coil from both sides, drain pan, blower, and the housing internals, each cleaned directly.
We reassemble and confirm
We check bearing and motor condition on the way back, refit, and confirm the smell or buildup is gone.
What we clean
We take the indoor unit down, strip it, clean each component, then reassemble.
Evaporator coil (both sides)
We take the unit off the wall for front-to-back access, so buildup behind the coil gets cleaned.
Drain pan
We disassemble the drain pan and clean it directly, not just flush from above.
Blower and fan motor
Blower comes out and gets cleaned separately. We check bearing condition and motor function while we put it back.
Housing and internals
We clean accessible surfaces behind the coil and inside the housing while the unit's off the wall.
Component inspection
Corroded joints, cracked drain pans, or worn parts get flagged separately. Nothing's added without approval.
From the field
A wall-mounted unit stripped down for an overhaul, every part cleaned by hand. 
The compacted buildup an in-place wash can't reach, the reason for a strip-down.
Workmanship warranty
30-day workmanship warranty. If a unit we overhauled doesn't come up clean, or a problem traces back to the work we did, we come back and the labour is on us, with no second call-out fee.
Documented deep-clean cases
Real cleaning and diagnosis, not generic service claims. Open one if it looks familiar.
Frequently asked questions about aircon chemical overhaul in Singapore
How long does a chemical overhaul take?
Is chemical overhaul worth the cost?
Will the overhaul fix my aircon's cooling problem?
How often should I get a chemical overhaul?
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Ready to get started?
Tell us what’s going on. Symptoms, setup, photos, anything we should know. We’ll assess and come back with the right next step.