How Often Should You Service Your Aircon? A Practical Schedule for Singapore Homes
"How often should I service my aircon?" is the question we get asked more than any other, and the honest answer depends on how the unit is used, not a single fixed number. Singapore's climate means every aircon is working hard year-round, but a unit that runs 12 hours a day in a household with young children needs a different schedule from one used occasionally in a spare room. Here's how to think about it properly.
The baseline: every 3 months for general servicing
For most households, a general service every 3 months is the right default. This keeps filters, the cooling coil, drainage tray, and blower wheel clean enough that dust and moisture buildup never gets a chance to affect performance or air quality. It's also the interval that keeps your electricity bill in check — a dirty unit can use meaningfully more power to produce the same cooling, so staying on schedule is as much a cost decision as a maintenance one.
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When to shorten the interval
Run your aircon more than 8 hours a day, or have elderly residents, young children, or anyone with respiratory sensitivities at home? Stick to the shorter end, and don't let a quarterly service slip. Units that work harder accumulate buildup faster, and the health case for clean air is stronger in households where residents spend more time exposed to whatever the unit is circulating. If there's an infant in the home, go further still: monthly filter cleaning between full services is worth it. Infants are especially sensitive to the dust and allergens a unit recirculates, and a quick monthly clean is a small ask against that. The same applies if you've just moved into a renovated home. Renovation dust is far heavier than everyday household dust, and it settles into a new unit fast. A service shortly after handover, rather than waiting for the standard 3-month mark, avoids months of that dust compounding inside components that are otherwise brand new.
💬 Interested? WhatsApp us →When a general service isn't enough: chemical wash and overhaul intervals
A general service cleans what's accessible without dismantling the unit — it's maintenance, not a deep clean. If you notice a musty or foul smell, reduced cooling that doesn't improve after a routine service, or it's been longer than 6 months since anything beyond a general clean, that's the signal for a chemical wash. Roughly every 6 months is a reasonable standing interval for most homes, more often if odours or weak cooling keep recurring. A chemical overhaul is the deepest tier, and it's not something most homes need annually unless the unit runs constantly. It's the right call for units that have gone 12 or more months without a proper service, or where a chemical wash hasn't fully resolved the problem. Think of it as the difference between symptoms persisting despite treatment and needing a more thorough intervention.
💬 Interested? WhatsApp us →Rentals and commercial spaces need their own schedule
For rental units, quarterly general servicing protects the asset and heads off the disputes that come up at the end of a tenancy over who's responsible for a neglected unit. For commercial spaces — offices, F&B outlets, retail — usage is usually heavier and more continuous than in a home, which often means a shorter interval is worth the cost purely in reduced downtime and energy use, since a breakdown during business hours costs more than the service would have.
💬 Interested? WhatsApp us →The simplest rule if you're not sure
If you can't remember the last time your unit was serviced, that's the answer: book one now, and use it as the reset point for a proper quarterly schedule going forward. An annual servicing contract is worth considering here too — it locks in pricing for the year and takes the remembering-to-rebook problem off your plate entirely.
💬 Interested? WhatsApp us →Not sure which service you're due for?
WhatsApp us your last service date and how you use your aircon. We'll advise honestly, even if that means telling you it's not time yet.
Or call +65 8815 2868
