Cost Guide · 2026
Aircon Gas Top-Up Cost & Price Singapore 2026
How much does an aircon gas top-up cost in Singapore?
An aircon gas top-up starts from S$80 for R32, S$120 for R410A and S$150 for R22. Before refrigerant is added, the system should be checked for pressure loss and leaks because a sealed system should not need routine top-ups. Refrigerant type, required amount, access and any leak repair affect the final written quote.
About FixMove - FixMove scopes aircon gas top-up requests using a unit nameplate photo, cooling symptoms and postcode. Indicative ranges start from S$80 for R32 and S$120 for R410A. A technician checks pressure and leak signs before any top-up; the final scope, price and any workmanship coverage are stated in the written quote.
Weak cold air doesn't always mean low gas - and topping up a leaking system just pays for refrigerant to escape again. So we check for a leak first, tell you honestly whether a top-up is even the right fix, and confirm the price before any work starts. Below are the 2026 ranges for R32, R410A and the older R22, plus when a top-up makes sense versus a full re-gas or chemical wash.
R32 from S$80Nameplate photo requestedLeak and pressure check firstWritten quote before work
Send the outdoor-unit nameplate, cooling symptoms and postcode for a scoped written quote.
Refrigerant top-up prices
Pricing is scoped per system - one outdoor unit is one refrigerant circuit - after the nameplate and symptoms are reviewed. The ladder below runs from a pressure check to a full re-gas: the per-refrigerant rows are advertised starting prices for a small top-up, and the amount actually added is set by the measured pressure shortfall. The written quote should identify the refrigerant, testing, charge amount, repair scope and access assumptions before work.
| Step on the ladder | Indicative price | What to confirm |
|---|---|---|
| Pressure and fault check (first step) | S$60-S$80 | The gauge reading against the nameplate specification decides whether a top-up applies and roughly how much gas is needed. Ask whether the fee is credited toward approved work. |
| R32 top-up (small pressure drop) | From S$80 | Confirm R32 on the outdoor-unit nameplate; common on newer inverter systems. Final scope depends on measured pressure, required charge and leak findings. |
| R410A top-up (small pressure drop) | From S$120 | Confirm the refrigerant on the nameplate; R32 and R410A must not be mixed. R410A is a blend, so a heavily depleted circuit may need re-gas instead of a top-up. |
| R22 top-up (legacy systems) | From S$150 | Availability and suitability must be confirmed as HCFC supply tightens. Compare repair and replacement scope for an older system. |
| Larger top-up (low measured pressure) | S$80-S$160 | Typical per-system band when the shortfall is more than a token amount; the exact charge and price are confirmed after the pressure reading. |
| Full vacuum and re-gas | S$180-S$280 | Planning range when the circuit has been opened or depleted; testing and repair are itemised separately where required. |
| Leak location and repair | S$120-S$280 | Quoted after the leak is found. Recharge after repair uses the per-refrigerant starting prices above as a separate line item. |
Indicative ranges only. Testing, refrigerant amount and any repair scope affect the final price, which is recorded in the written quote before work.
Does an air conditioner need regular gas top-ups?
No. A sealed air-conditioning system should not consume refrigerant during normal use. Low pressure can indicate a leak, an earlier undercharge or a testing issue. If cooling drops again after a refill, diagnose and quote the cause before adding more refrigerant.
If the charge has fallen more than once or a leak is suspected, use the aircon gas leak detection guide to separate initial diagnosis, focused leak testing, repair and post-repair recharge. Topping up without finding and addressing a confirmed leak is not a durable fix.
Top-up or leak repair? How to tell which one you need
The fastest tell is how quickly the gas disappeared. Refrigerant is not fuel - a sealed circuit does not use it up - so the speed of the loss says whether a top-up makes sense or whether the money should go to finding a leak first.
Other signs that point to a leak rather than a routine top-up: ice forming on the copper pipes or fan coil, a faint hissing near the pipework, or oily residue around joints and flare nuts. Any of these justifies leak testing before more refrigerant is added.
How much gas does my unit need?
There is no fixed amount to order up-front. The technician reads the system's operating pressure against the manufacturer's nameplate specification, and the shortfall between the two sets how much refrigerant is added - which is why the pressure check comes before the final price is confirmed.
What the aircon gas top-up price covers
The aircon gas top up price in Singapore depends on the refrigerant type, measured pressure, required charge and whether a leak needs repair. Routine maintenance can restore airflow, but it does not replace refrigerant diagnosis. Send the outdoor-unit nameplate photo so R32 or R410A can be confirmed before testing and a written quote.
Send this for a comparable gas top-up quote
A precise enquiry helps separate a simple top-up from leak testing, repair or a full re-gas. Send the same information to each provider so the prices are comparable.
Ask the written quote to separate diagnosis or call-out, leak-testing method, repair, refrigerant type and amount, labour, access equipment, testing, workmanship coverage and exclusions.
FAQ
How much does aircon gas top-up cost in Singapore?
Indicative prices start from S$80 for R32 and S$120 for R410A per system. Send a clear photo of the outdoor-unit nameplate so the refrigerant type can be confirmed; the required amount, testing and any repair scope are set out in a written quote before work.
How do I know if my aircon needs gas top-up?
Weak cooling, ice on the pipework or a hissing sound can point to low refrigerant, but airflow, controls and compressor faults can cause similar symptoms. Pressure and leak checks are needed before deciding whether a top-up is appropriate.
Is aircon gas top-up the same as servicing?
No. Routine servicing cleans filters, coils and drainage. A gas top-up adds refrigerant only after undercharge is confirmed. A sealed system should not need scheduled top-ups; repeated loss should be investigated and repaired.
How long does a gas top-up visit take?
Visit time depends on the system layout, access, pressure and leak testing, and whether repair is required. Send the model nameplate, symptoms and postcode so the scope and next available slot can be confirmed.
Will the gas leak again after top-up?
It can if refrigerant is added without correcting a leak. If charge drops again, test the system and quote the leak repair before adding more gas.
What warranty or workmanship coverage applies?
Any workmanship coverage period, covered scope and exclusions depend on the diagnosed work and must be stated in the written quote. Do not assume a standard term applies to every top-up or repair.
✅ Refrigerant type & handling checks
The refrigerant must match the manufacturer's nameplate. Where applicable, handling, recovery and disposal should follow Singapore requirements; confirm the assigned technician and disposal scope in the written quote.
R22 / HCFC note: R22 is a controlled HCFC. NEA says Singapore will completely phase out HCFC consumption by 1 January 2030, with annual quota reductions from 2026, so supply is expected to tighten. For an older R22 system, compare leak repair, compatible refrigerant options and replacement cost before approving a recharge. Read the NEA HCFC phase-out schedule.