How Much Does AC Servicing Cost in Sri Lanka in 2026?
A routine service with a chemical wash costs Rs 3,500–7,500 per split unit. A gas refill costs Rs 8,000–20,000, and installing a new 12,000 BTU split unit costs Rs 18,000–35,000 in labour alone.
Those three numbers cover most calls. The rest of this guide breaks each one down further — by fault, by unit size, and by how often to book a technician given how hard Sri Lanka's climate runs an AC.
Here is the full 2026 picture for Colombo and the suburbs:
| Service | 2026 rate |
|---|---|
| Inspection or call-out, one to two units | Rs 3,000 – 4,500 |
| Technician, per hour on site | Rs 2,500 – 4,000 |
| Emergency or same-day call-out | Rs 5,000 – 8,500 |
| Routine service and chemical wash (per unit) | Rs 3,500 – 7,500 |
| Gas refill, R32 or R410a (per unit) | Rs 8,000 – 20,000 |
| Install 12,000 BTU split AC, standard pipe run | Rs 18,000 – 35,000 |
Outstation districts run 10–20% below Colombo on labour. Expect the top of every band during the Avurudu rush in March–April and again as the hot dry season builds from May onward, when every technician's diary fills up.
What Does AC Gas Filling Actually Cost?
A gas refill costs Rs 8,000–20,000 per unit. The range depends almost entirely on refrigerant type and unit size, not on the technician: R32 and R410a — now standard in nearly every split unit sold in Sri Lanka — cost more per kilogram than the older R22, and a larger unit needs more of it to recharge fully. A small 9,000 BTU bedroom unit sits near the bottom of the band; an 18,000 or 24,000 BTU unit sits near the top.
The detail worth knowing before you agree to a refill: refrigerant gas does not get used up by normal running. A sealed system holds the same charge for its whole life. If a unit is low on gas, it is leaking — almost always at a flare joint, the indoor coil, or a corroded outdoor coil near the coast. A technician who tops up the gas without pressure-testing for a leak first is treating the symptom, and you will likely pay for the same refill again within a year. Ask for the leak check before you pay for gas.
What Does a General AC Service Include, and What Does It Cost?
A routine service and chemical wash costs Rs 3,500–7,500 per split unit, and covers the indoor and outdoor coil, the filter and the drain line — the places dust, mould and salt actually build up.
This is the most cost-effective thing you can do for an AC in Sri Lanka. Most cooling complaints — weak airflow, a musty smell, water dripping from the indoor unit — trace back to a dirty coil or a blocked drain, not a mechanical fault, and a wash resolves all of them for a fraction of a compressor or PCB repair.
Inspection or call-out for one or two units runs Rs 3,000–4,500, and most technicians credit it against the job if you go ahead with the service. If you own more than one unit, ask about an annual contract covering two or three visits per unit — cheaper per visit than booking separately, and it catches drain and coil problems before they turn into a 9pm call-out during a heatwave.
What Does AC Repair Cost, by Fault?
Repair cost depends entirely on what has actually failed, and the range across common faults is wide — from a remote control at under Rs 4,000 to a compressor near Rs 100,000.
| Fault | 2026 repair cost |
|---|---|
| Remote control repair or replacement | Rs 1,500 – 4,000 |
| Blocked condensate drain, cleared | Rs 2,500 – 5,000 |
| Chemical wash (coil, filter, drain) | Rs 3,500 – 7,500 |
| PCB or control board repair/replace | Rs 12,000 – 35,000 |
| Compressor replacement | Rs 35,000 – 95,000 |
| Relocate an existing split unit | Rs 12,000 – 28,000 |
The pattern that matters: the cheap faults are common, the expensive fault is rare — but homeowners often get quoted for the expensive one first. If an AC is not cooling, the honest order of likelihood is a clogged filter or coil, then a blocked drain, then low gas from a leak, and only then a failing capacitor or compressor. A technician who reaches for a compressor quote before washing the coil is skipping steps. Ask for the diagnosis in writing — and if a compressor quote lands near the top of the Rs 35,000–95,000 band on an older unit, price a new unit alongside it.
What Does Installing a New Split AC Cost, by Unit Size?
Installation labour for a 12,000 BTU split unit with a standard pipe run costs Rs 18,000–35,000, excluding the unit itself, and scales up with the unit's size and weight.
| Unit size | Installation labour (2026) |
|---|---|
| 9,000 BTU | Rs 15,000 – 28,000 |
| 12,000 BTU | Rs 18,000 – 35,000 |
| 18,000 BTU | Rs 22,000 – 42,000 |
| 24,000 BTU | Rs 28,000 – 55,000 |
A standard pipe run means a few metres of copper between an indoor and outdoor unit on the same or an adjoining wall, with a simple bracket and gravity drainage. What pushes any figure higher: a long run through more than one wall, core-drilling through concrete, high-level mounting needing scaffolding, and a new dedicated circuit — 18,000 and 24,000 BTU units often need their own breaker.
Relocating an existing unit — moving it to a different wall or room during a renovation — costs Rs 12,000–28,000, cheaper than a fresh install since the unit and wiring already exist; the job is mostly pipe and bracket work.
How Does Sri Lanka's Climate Change AC Service Needs?
Every six months for most homes, and every four to six months near the coast — Sri Lanka's climate runs an AC harder than a temperate-climate service schedule assumes.
There is no winter to give a unit a rest. The hot dry months from around March to September push units to run most of the day, which is exactly when a dirty coil turns into weak cooling and a high bill. The monsoon months bring humidity rather than cold, so units keep running to dehumidify even when the temperature is bearable — coils and drains stay wet longer, which is when mould and blockages build fastest.
Coastal salt air adds a second clock on top of the seasonal one. In Colombo, Wellawatta, Dehiwala, Moratuwa, Negombo and Galle, salt corrodes an outdoor coil noticeably faster than it does inland, which is why those areas need the four-to-six-month interval. A unit that cools poorly near the coast is, again, far more often a corroding coil than low gas — same diagnosis order, shorter clock.
For call-out fees, after-hours rates and the full service breakdown, see the AC and HVAC contractors in Colombo directory page. Planning a new build or extension too? The house construction cost guide sets AC and electrical work against the rest of the budget.
How Do You Get a Fair AC Service Quote?
Get the diagnosis and the scope in writing before any work starts. Ask directly:
- Is the call-out fee credited against the job if you go ahead?
- What exactly failed, and how was it confirmed — not just "low gas" without a leak test?
- Is the chemical wash included, or charged separately from the repair?
- For an installation: how many metres of pipe, and is core-drilling or a new circuit included?
- Is there a warranty on the repair or the gas charge?
Compare at least two quotes on the same written scope — the gap between a fair PCB repair and an inflated one is often Rs 15,000 for the same part.
Browse verified AC and HVAC technicians in Colombo, or post your AC job for free — describe the unit, what it is doing (or not doing), and when you need it fixed, and technicians near you will send quotes to compare. No fees, no obligation to hire.
Prices in this guide are 2026 planning estimates and vary by district, unit brand, and fault severity. Always confirm the diagnosis and the price in writing before work starts.