9 Best Aircon Servicing in Singapore (2026)

Before you compare companies, you need to know what you are actually buying. Aircon work in Singapore comes in clear tiers, and the price gap between them is large. Knowing the difference is the single best defence against being upsold.

A general service is the routine clean. The technician vacuums the filters, wipes the cooling coils, clears the drainage pipe, and checks that the unit runs cold. This is the one you do often. In our humidity, a household that runs the aircon most nights should book a general service roughly every three months. Skip it and the filters clog, the coil ices up, and the unit starts dripping or smelling musty.

A chemical wash goes deeper. The technician applies a chemical solution to the fan coil to strip out mould, bacteria, and the gunk a normal wipe cannot reach, usually without fully dismantling the unit. You do this when the aircon smells bad, cools weakly, or has not been touched in a long time. A chemical overhaul is the heavy version. The whole fan coil is dismantled, every part is soaked and cleaned, and it is reassembled. It costs the most and you rarely need it more than once every few years. If a technician pushes an overhaul on a unit you service regularly, be sceptical.

A gas top-up is different again. If your aircon runs but blows weak or warm air, the refrigerant may be low. Topping up R22, R410A, or R32 gas restores the cooling. Note that a unit losing gas usually has a leak, so a good technician finds the leak rather than just refilling and sending you off. The common faults people call about are simple to name: not cold (gas or dirty coil), water leaking or dripping (blocked drainage), and a bad smell (mould in the coil). The electrical side, the isolator and tripping breakers, often needs a sparkie rather than an aircon crew, which is why I keep my best electricians in Singapore list handy too.

DW Aircon is my top pick, and the reason is boring in the best way. They have built up well over three thousand reviews at a 4.9 rating, which is the kind of volume that is very hard to fake or buy. When that many people keep coming back, the service is doing something right.

What I like most is the lack of pressure. The reviews repeat the same thing again and again: the technician tells you what is wrong, fixes it, and does not invent an overhaul you do not need. General servicing starts around S$65 for a single unit and scales down per unit as you add more, and they handle HDB, condo, and landed across the island seven days a week.

They also run quarterly contract packages if you want servicing on autopilot. For a household that just wants reliable, no-drama maintenance, this is where I would start.

Website: dwaircon.com
Location: Lower Delta Road, island-wide service
Google Rating: 4.9 stars (3,300+ reviews)
Best known for: Huge review base and no hard-sell servicing

Billy Aircon has been going since 2003, and that longevity matters in a trade where companies appear and vanish. They run an in-house team of around 26 technicians rather than subcontracting, which usually means more consistent work because the same trained crew turns up.

Their pricing is some of the clearest I have seen. General servicing runs from about S$16 a unit at higher unit counts, chemical wash sits in the S$80 to S$180 band depending on whether it is dismantled, and gas top-up is quoted by refrigerant type. They back the work with a 90-day workmanship warranty and state plainly that there are no hidden fees.

The Google rating sits a touch lower at 4.3, but across more than a thousand reviews, and I read that as honest rather than worrying. A long-established company with real volume will always pick up a few unhappy reviews. The transparency and the in-house model win me over.

Website: billyaircon.com.sg
Location: Island-wide service
Google Rating: 4.3 stars (1,095+ reviews)
Best known for: Transparent per-unit pricing and an in-house team since 2003

If you want a servicing contract rather than ad-hoc visits, GoodCool is the one I would look at first. They lay out contract pricing openly, with quarterly packages that bundle a set number of visits, so you know the yearly cost upfront instead of guessing.

They hold a 4.9 rating across roughly 1,400 reviews and have been at this for more than 15 years, working out of Paya Lebar Square with island-wide coverage. The full menu is there: general service, chemical wash, chemical overhaul, gas top-up, and brand-specific work for Daikin and Mitsubishi systems.

Their pricing is bundled by unit count, which suits the typical HDB or condo home with two to three units. For a fuss-free maintenance plan, they are a strong choice.

Website: goodcoolsg.com
Location: Paya Lebar Square, island-wide service
Google Rating: 4.9 stars (1,400+ reviews)
Best known for: Clear servicing contracts and brand-specific work

SoCool has stacked up more than 4,500 five-star reviews across Google and Facebook at a 4.9 rating, which is one of the largest bodies of feedback in this whole market. That scale tells you they are doing a lot of jobs and keeping people happy.

Their edge is availability. They run long hours and emergency response, which matters when your aircon dies during a heatwave on a Sunday and most companies are shut. They cover the standard tiers from general servicing through chemical wash and overhaul, with per-unit pricing that scales as you add units.

The team works out of Midview City at Sin Ming with island-wide reach. If responsiveness is your priority, SoCool earns its spot.

Website: socool.sg
Location: Midview City, Sin Ming, island-wide service
Google Rating: 4.9 stars (4,500+ reviews)
Best known for: Massive review base and long-hours availability

Marvellous prices everything per fan coil unit and publishes the rates plainly, which is exactly the kind of clarity I want before I let anyone touch my aircon. Normal servicing, chemical wash, and chemical overhaul each have a stated per-unit figure with tiered discounts as the unit count goes up.

They sit at over 800 reviews with technicians who have a decade-plus in the trade, and they cover the usual spread of towns from Hougang and Yishun through to Tampines and Bukit Batok. Emergency repair is part of the offer, and the operating hours run late into the evening seven days a week.

For anyone who hates getting a vague quote over the phone, the upfront per-unit model here is refreshing.

Website: marvellous.sg
Location: Island-wide service
Google Rating: 4.9 stars (837+ reviews)
Best known for: Transparent per-fan-coil pricing

338 Aircon leans into the budget end with some of the lowest advertised per-unit servicing rates around, which makes them worth a look if you have several units and want to keep the routine clean affordable. They have over 15 years in the trade and handle HDB, condo, landed, and commercial work.

Where they earn their place is the fault-fixing menu. They list the exact problems people search for, aircon not cold, aircon leaking water, gas top-up, and chemical overhaul, as named services, so you can call about a specific symptom rather than a generic visit. That clarity helps when something is actually broken.

They operate out of Duku Road. With a leaner Google review count than the giants on this list, I would lean on them more for straightforward servicing and common repairs than for a big overhaul.

Website: 338aircon.sg
Location: Duku Road, island-wide service
Google Rating: Strong Facebook and review feedback
Best known for: Budget per-unit servicing and named fault fixes

Cold Max covers the full range from general servicing right through to full chemical overhaul, gas top-up, troubleshooting, and even VRV and VRF systems for larger setups. That breadth makes them useful if you have an older or more complex system that a basic crew might shy away from.

They run a 24-hour hotline and back repairs with a 90-day guarantee, and the reviews praise thorough work with no hidden cost. They use germicidal detergents on the chemical cleans, which is the kind of detail that matters if mould smell is your main complaint.

Based in Ang Mo Kio Industrial Park, they pitch themselves on workmanship and brand coverage. A solid all-rounder for households that want one company able to handle both the small clean and the big job.

Website: coldmax.com.sg
Location: Ang Mo Kio Industrial Park, island-wide service
Google Rating: Consistently positive customer feedback
Best known for: Full overhaul range and a 90-day repair guarantee

CoolAircon is the one I would call when I need someone today. They build the pitch around same-day service and have collected 200-plus five-star reviews doing it, which is a healthy showing for a fast-response outfit.

They cover servicing, repair, chemical wash, and chemical overhaul, with general servicing from around S$45 a unit and chemical work quoted clearly above that. The reviews mention high-pressure jet cleaning, which gets the coils cleaner than a standard wipe-down on units that have been neglected.

For a same-day clean or a quick repair when you cannot wait for a booking slot, they are a dependable call.

Website: coolaircon.sg
Location: Island-wide service
Google Rating: 200+ five-star reviews
Best known for: Same-day service and jet cleaning

Everyworks is the one-stop option. They are a broad home maintenance platform that does aircon alongside plumbing, electrical, and handyman work, so if you would rather book everything through one trusted outfit, they make sense. The aircon arm has more than a decade behind it.

They carry a very high review count at a 4.9 rating across tens of thousands of completed jobs, and they handle general servicing, chemical wash, repair, and gas top-up island-wide. The platform model means booking is smooth and the same company can come back for an unrelated home problem next month.

If single-trade specialists feel like a hassle to manage, Everyworks trades a little aircon focus for a lot of convenience.

Website: everyworks.com
Location: Lower Delta Road, island-wide service
Google Rating: 4.9 stars (large review base)
Best known for: One-stop home maintenance with aircon included

The big swing in general servicing comes down to unit count. A single unit is dearer per head because the technician still has to travel out to you, while three or four units brings the per-unit rate right down, which is why contracts and multi-unit homes get the best deal. Chemical work is priced per unit too, and a dismantled wash or full overhaul sits at the top of the range because of the labour involved. Always confirm whether a quote is per unit or per visit before you book, because that single point causes most of the bill-shock complaints I read.

1. Transparent per-unit pricing. The rate per unit should be on the website or stated clearly on the phone, not invented once the technician sees your flat.
2. No hard-sell on chemical overhaul. A good company recommends an overhaul only when the unit genuinely needs it, not on every visit.
3. Reviews at volume. A 4.9 rating from 30 reviews means little. I trust ratings backed by hundreds or thousands of jobs.
4. Contract flexibility. If you want a maintenance plan, the quarterly package should be clearly priced and easy to cancel.
5. Warranty on workmanship. A 90-day workmanship warranty shows the company stands behind the job and will come back if something goes wrong.

I started where most Singaporeans start, with Google reviews, Reddit threads, and the local roundup sites. From there I checked each company's own website to confirm the services, the pricing model, the service areas, and whether they back the work with a warranty. I weighted review volume heavily, because a high rating only means something when it is built on a large number of real jobs.

I have not personally hired all nine, and ratings and prices move over time, so treat this as an informed shortlist rather than gospel. Confirm the current quote and warranty terms directly with the company before you book. Nobody is paying to be on this list. These are the aircon servicing companies I would genuinely call myself, ranked by how fairly they price and how well their reviews hold up.

For a home that runs the aircon most nights, roughly every three months is the sweet spot. Singapore humidity drives mould and dust into the fan coil fast, so a quarterly general service keeps the unit cooling efficiently and stops the musty smell and water dripping that come from clogged filters and drainage. If you barely use the aircon, you can stretch it to every four to six months, but do not skip it entirely, because a neglected unit costs far more to fix than to maintain.

A chemical wash cleans the fan coil with a chemical solution, usually without taking the unit apart, to strip out mould and bacteria a normal service cannot reach. A chemical overhaul is the heavy version: the technician fully dismantles the fan coil, soaks and cleans every component, then reassembles it. The overhaul costs more and takes longer, and you only need it occasionally, every few years, or when a unit has been badly neglected. If you service regularly and a technician still pushes an overhaul every visit, that is a red flag.

Water leaking or dripping from the indoor unit is almost always a blocked or dirty drainage pipe, which a general service or chemical wash usually clears. An aircon that runs but does not cool points to one of two things: a dirty coil restricting airflow, again fixed by a clean, or low refrigerant, which needs a gas top-up. Because a unit that loses gas usually has a leak, a good technician traces the leak rather than just refilling it. If the unit also trips the breaker, the fault may be electrical, and that is when you want an electrician rather than an aircon crew.

For most households, yes. A quarterly contract locks in a lower per-unit rate, keeps your servicing on schedule so you do not forget, and usually puts you at the front of the queue when you need a repair. The catch is flexibility, so check that the package is easy to cancel and that it covers the unit count you actually have. If you own a single unit and barely use it, ad-hoc booking may work out cheaper. For a typical two or three unit HDB flat or condo running aircon most nights, a contract is the more sensible choice.