A split AC is a sealed circuit. In a healthy unit the refrigerant never needs topping up - not in year two, not in year ten. If the pressure is low, gas has escaped through a joint, a flare connection, a pinhole in the copper line or a fatigued coil. Jeddah makes this worse than most cities: salt-laden air near the Corniche corrodes outdoor coils, and constant 40 °C+ running pushes every joint through thousands of hot-cold cycles each year.
Why we test before we refill
Any technician can connect a manifold and open a valve. The problem is what happens next: the new gas leaks out through the same undetected hole, the compressor keeps running short of refrigerant, and it overheats. That is how a SAR 300 top-up turns into a SAR 1,500 compressor job. Our visit follows the same order on every unit:
- Static and running pressure check. We record suction and discharge pressure at the service ports and compare them with the manufacturer's table for your refrigerant type and outdoor temperature.
- Nitrogen pressure test. The circuit is isolated and pressurised with dry nitrogen. A drop over 20–30 minutes means there is a leak, and we stop there.
- Leak location. Soap solution on flare nuts, braze joints and the service valves, plus electronic sniffing on the evaporator and condenser coils where soap cannot reach.
- Repair. Re-flare, re-torque or braze the joint. Where the copper line is cracked or crushed, we replace that section rather than patch it.
- Vacuum and recharge. The system is evacuated to remove air and moisture, held under vacuum to confirm it seals, then charged by weight and verified with superheat and subcool readings.
Which refrigerant does your AC use?
| Refrigerant | Typical units in Jeddah | What to know |
|---|---|---|
| R410A | Split and ducted systems from around 2010 onwards | Higher pressure; must never be mixed with R22 and needs its own gauges and hoses. |
| R32 | Newer inverter splits | Slightly flammable - charge by weight only, never by guesswork. |
| R22 | Older window and split units | Being phased out. If the leak is in the coil or compressor, replacement is often the better spend. |
Signs you may actually need a refill
- Air from the indoor unit is cool at the vent but the room never reaches the set temperature.
- The outdoor unit's copper lines are not cold and sweating the way they used to.
- Ice forming on the indoor coil or on the small copper line.
- The compressor runs continuously and the electricity bill climbs.
- A hissing or bubbling sound at the outdoor unit when it starts.
None of these is proof on its own. A blocked filter, a choked outdoor coil or a failing capacitor produce identical symptoms, which is why the visit starts with measurement rather than a gas bottle.
What the visit costs
Gas pricing depends on the refrigerant, how much the circuit holds and whether a leak has to be repaired first. We quote the total on WhatsApp once you send the AC type and the rating-plate photo, and the price does not change on site unless we find something new - in which case we stop and ask before continuing. Current ranges are on the Jeddah AC price guide.
Areas we cover
We work across Al Rawdah, Al Salamah, Al Shati, Al Basateen, Al Hamra and Al Nuzhah, and the surrounding Jeddah districts. If you are outside these, send your location and we will confirm before booking.
How to tell a real refill from a top-up
A proper refill is not "open the valve until the gauge looks better". It is a measured job with a paper trail. Ask for these four things and you can judge any quote:
- A pressure reading before and after. Suction and discharge, written down, not eyeballed.
- A nitrogen test result. If nobody isolated the circuit, nobody looked for the leak.
- The charge in grams. The rating plate states the factory charge; the invoice should show how much went in.
- A temperature split. Return air versus supply air at the indoor unit - typically 8–12 °C on a healthy split system.
A top-up without those numbers is a guess, and in a Jeddah summer a guess costs you the same visit twice.
After the visit
Ask the technician to show you the leak location if one was repaired, and to note the refrigerant type and charge on the invoice. If the same unit loses cooling again within a few months, that note is what lets us check the same joint first instead of starting from zero. Keep it with the unit's paperwork.
For a unit that is old enough that a coil or compressor leak is likely, we will say so before you spend on gas - a refill on a failing system is money you will not see again.