Aircon gas top-up
Refrigerant top-up for R22, R410A, and R32 systems. Pressure check first, top-up second. We’ll assess first, then confirm whether this is the right scope before you book.
BCA-registered10,000+ jobs completed
What aircon gas top-up covers
Aircon gas top-up restores refrigerant that's been lost. We check pressure first to confirm low charge is actually the cause, because topping up a leaking system only buys time before the same problem returns. If the pressure won't hold, we'll tell you and recommend leak detection instead. Common situations where a top-up fits:
Air blows but isn't cold
The unit runs, but there isn't enough refrigerant to transfer heat properly.
Ice forms on the indoor coil or piping
Low charge makes the evaporator overcool and freezes surface condensation.
Previous top-up lasted a few years
Slow loss is manageable after a pressure check. A recent repeat loss should be treated as a leak first.
When a gas top-up isn't suitable
Top-up shouldn't be the default if the system's clearly losing gas or the fault points somewhere else.
Gas dropped again within months
Points to an active leak. Leak detection or pressure testing should come first.
System is completely empty
A leak or failed component has to be found before recharging, or the gas escapes again.
Gas pressure is normal
The cooling fault's elsewhere: airflow, compressor, expansion valve, sensor, or control issue.
What you get
Restored cooling without hiding a leak.
Pressure checked before top-up
You know whether low gas is the actual cause, instead of paying for refrigerant blindly.
Right gas, right quantity
Refrigerant matched to the system type and measured before and after.
Leak risk explained
If pressure doesn't hold, you get the facts before deciding on leak detection or repair.
What we check before adding gas
Top-up only happens after we've checked the system enough to know it makes sense.
Pressure check
Manifold gauges tell us whether refrigerant's low, how far it's dropped, and whether the pressure is holding.
Leak assessment
If pressure's low and not holding, we explain the leak risk before recommending any top-up.
Refrigerant type confirmed
R22, R410A, and R32 aren't interchangeable. We confirm the type from the unit nameplate before adding gas.
Top-up and verify
If pressure holds, we add the correct refrigerant amount, then run the unit to verify cooling performance.
We pressure-check first to confirm low charge is the cause, because topping up a leaking system only buys time. After a top-up, we measure the charge and run the unit to confirm cooling. How a job runs, from first message to booking.
From the field
A measured R410A top-up, charge checked on the gauges before and after.
Workmanship warranty
We stand behind the repair we carry out, and we are straight about the part of the cover we do not set ourselves.
Labour
30-day workmanship warranty. If the same fault returns from our repair, we come back and the labour is on us, with no second diagnostic visit fee.
Parts
Parts carry the distributor's warranty for that component, so the term varies by part. We tell you both terms before you approve the work.
Gas top-up case patterns
Diagnosis-led case notes, not generic service claims. Open the case if the symptom looks familiar.
Frequently asked questions about aircon gas top-up in Singapore
How much does aircon gas top-up cost in Singapore?
How often does aircon gas need topping up?
Can you mix different refrigerant types?
Should I top up or replace an old R22 system?
We cover all of Singapore. Find aircon services in your area.
Describe your situation
Tell us what’s going on. Symptoms, setup, photos, anything we should know. We’ll assess and come back with the right next step.