BrothersAircond

Aircon gas leak repair and top-up in Singapore

  • Leak found before any top-up
  • $50 call-out, free if we repair
  • Open 8am–midnight, every day

Or tap what it’s doing and we’ll reply on WhatsApp:

A sealed system does not consume refrigerant. If yours is low, it has leaked, and the gas has gone somewhere. That is why we check for the leak before we put anything in.

Topping up a leaking system will cool your room for a few weeks and then you are back where you started, having paid for gas that is now in the air outside. Plenty of companies will do exactly that. We would rather find the leak and quote the repair.

Manifold gauge connected to the refrigerant line while checking an aircon system

What customers say

From 479 public Google reviews, averaging 4.9. Read them all.

What happens on the visit

  1. Confirm it is actually a gas problem

    Weak cooling is more often a fouled coil than low gas. We check the obvious causes first so you are not paying for refrigerant you did not need.

  2. Pressure check and leak trace

    Gauges onto the condenser to read the actual pressures, then a trace of the joints and line set to find where it is going.

  3. You get the finding before we do anything

    If it is a repairable joint we quote the repair. If it is a slow leak you would rather live with for now, we tell you what a top-up will realistically buy you and let you decide.

  4. Charge to spec and verify

    Charged to the manufacturer's spec for the unit, not by feel, then run and measured at the vent so you can see the result.

What’s included

  • Pressure check on the system
  • Leak trace on joints and line set
  • Refrigerant charged to the unit's specification
  • Cooling verified at the vent before we leave

What’s not

  • Repair of the leak itself, which is quoted separately once we have found it

Anything outside the job gets quoted before we do it, never added at the end.

Low gas usually looks like

Common questions

How do you find an aircon gas leak?
Gauges go on the condenser first to confirm the system is actually low, then we trace the flare joints, the line set and the coils, where most leaks are. Most turn out to be a flare joint that has worked loose or cracked, which is a straightforward repair once it is found.
How much does aircon gas leak repair cost?
It depends where the leak is — re-flaring a joint is a small job, a leaking coil is a large one — so it is quoted after we find it, never before. The call-out to diagnose is $50, and it is not charged if we carry out the repair.
Is an aircon gas leak dangerous?
In a home it is rarely an emergency. Air-con refrigerants are not toxic in the small amounts a split unit holds, but they displace air, so open a window if you notice a strong hiss indoors. Newer R32 systems are mildly flammable — keep open flames away from a large, active leak and switch the unit off until it is checked.
How much does a gas top-up cost?
It depends on the refrigerant type and how much the system takes, so we quote it after the pressure check rather than guessing up front. The diagnostic call-out is $50, and free if you go ahead with the work.
How often should aircon need topping up?
Ideally never. A properly sealed system holds its charge for the life of the unit. Needing gas every year means there is a leak worth finding.
Can you top up R22 systems?
Yes, though R22 is phased out and increasingly expensive. On an older unit that needs gas repeatedly, we will be straight with you about whether it is worth spending on.

Might not be what you need

Plenty of people land on the wrong page. If either of these sounds closer, follow it — we would rather you booked the right job than the expensive one.

Book it

Tell us how many units and roughly what’s happening and we’ll come back with a price and a slot. Same-day when we have one free. If you want to see how we have done for other people first, there are 479 Google reviews.