Aircon servicing prices in Singapore have crept up about 8–12% over the last two years, mostly driven by labour costs and the shift to R-32 refrigerant. Here's what genuinely fair pricing looks like in 2026, broken down by service type.
General servicing: from $55 for 1 unit
This is your routine quarterly clean — filters out, blower wiped, drainage flushed, refrigerant pressure checked. At aircons.sg a System 3 home (3 indoor units) is $95 per visit ($55 for 1 unit, $90 for 2, $160 for 4, $35 per unit from 5). A price far below the going rate usually means a contractor cutting corners on time spent.
Chemical wash: from $135 for 1 unit
The unit is dismantled and the evaporator coil is soaked in a chemical solution to dissolve embedded biofilm. This takes 1.5–2.5 hours per unit and is typically needed every 12–24 months even with disciplined quarterly servicing. At aircons.sg a System 3 home's chemical wash is $345 ($135 for 1 unit, $245 for 2, $425 for 4).
Chemical overhaul: from $200 for 1 unit
Chemical wash plus full outdoor compressor servicing, refrigerant vacuum-and-recharge, and replacement of any worn capacitors. This costs more than a chemical wash but extends unit life by 3–5 years on aircons that are 6+ years old.
Gas top-up: $115–$170 per outdoor circuit
Pricing depends on refrigerant type and is charged per outdoor circuit, not per indoor unit. At aircons.sg R-32 (now the most common) is $170, R-410A is $130, and R-22 (in pre-2013 units, getting harder to source) is $115. If your aircon needs gas top-ups more than once a year, there's a leak that needs fixing first.
What pushes prices up legitimately
Higher-floor HDB units may attract a ledge-access surcharge for work on outdoor units, confirmed for your specific block before work starts. At aircons.sg there is no weekend surcharge; only after-hours emergency repair (10pm–7am) carries a $50 surcharge. Premium brands (Daikin Premium Inverter, Mitsubishi Heavy) take longer to service due to compact internal layouts.
How to spot overcharging
Watch out for: surprise quotes after the technician is already in your home; vague line items like 'system inspection charge' on top of servicing; pressure to do chemical wash on a unit that genuinely just needs general servicing; gas top-up quotes without first checking for leaks.
The smarter way: quarterly contracts
Some aircon companies offer quarterly servicing contracts at a discount off the ad-hoc per-visit price, and a home on such a contract typically pays less per visit than ad-hoc rates. Contracts also give you priority scheduling during the hot months when contractors are slammed.