Aircon Servicing in Singapore: What It Is, How Often, and What You Actually Need

Singapore’s heat and humidity run air conditioners harder than almost anywhere. Dust, mould, and moisture build up inside the fan coil whether you can see it or not — and a unit that looks fine from the outside can quietly lose cooling power, spike your electricity bill, and start breeding the smell you notice when it first switches on.

Regular servicing is the cheapest way to avoid all of that. This page explains what servicing actually does, how often you really need it, and how to tell the difference between a routine clean, a steamwash, and a full chemical overhaul — so you book the right thing instead of overpaying or underdoing it.

We’re an authorised dealer for Mitsubishi Electric, Daikin, and Midea, servicing all brands across Singapore since 1996.

How often should you service your aircon?

For a typical Singapore home, the honest answer depends on how hard the unit works:

Quarterly is the sensible default for most households. If you only switch the unit on occasionally, you can stretch it — but don’t skip a year, because the build-up that causes weak cooling and smells happens whether the unit runs or not.

What’s included in a general servicing visit?

A general service is routine maintenance — keeping a working unit working well. On each indoor unit, our technician will:

• Wash the air filters and clear accumulated dust
• Clean the cooling coil (evaporator) and blower fan surfaces
• Clear the drainage tray and pipe so the unit doesn’t leak water
• Check cooling performance and listen for unusual noise or vibration
• Inspect the outdoor condenser and check refrigerant behaviour
• Wipe down and reassemble, leaving the unit clean and running

This keeps airflow strong, cooling efficient, and your electricity bill in check. What it does not do is force-flush deep grime out of a coil that’s already heavily clogged — that’s a steamwash or a chemical overhaul, which we explain next.

General servicing vs steamwash vs chemical overhaul

These three get confused constantly. Here’s the plain-English difference so you can pick the right one:

A simple way to think about it: general servicing is the regular clean, steamwash is a deeper refresh, and a chemical overhaul is the recovery job when things have gone too far.

Read the detail and prices for each: General Servicing · Steamwash · Chemical Overhaul

One-off service or an annual package?

If you service on schedule anyway, an annual servicing package spreads the visits across the year and takes the remembering off your plate — we schedule and turn up. If you prefer to book only when you need it, ad-hoc general servicing is always available.

Compare the options: ECO Basic Annual · ECOPLUS Annual · One-off General Servicing

Signs you’ve left servicing too long

If you’re seeing any of these, the unit is telling you it’s overdue:

• Weak or uneven cooling — it runs but the room never quite gets cold
• A musty or sour smell when the aircon first switches on
• Water dripping from the indoor unit
• A noticeably higher electricity bill for the same usage
• Longer time to cool, or the unit cycling on and off oddly

A cooling coil before and after servicing — most of this build-up is invisible until the unit is opened up.

Weak cooling, leaking, or strange behaviour can also point to a fault rather than just dirt. If a clean doesn’t fix it, work through the symptoms on our aircon troubleshooting guide, or book a repair visit.

Frequently asked questions

AUTHORISED DEALER