Aircon Gas Top-Up & Leak Repair

Understanding Aircon Gas Top-Up in Singapore

Refrigerant is the lifeblood of your air conditioning system — it absorbs heat from your room, carries it to the outdoor unit, and releases it outside. Refrigerant circulates in a sealed, closed loop and does not get "used up" during normal operation. If the gas level in your aircon is low, there is almost always a leak somewhere in the system — in the evaporator coil, condenser coil, copper piping joints, or service valves. Simply topping up gas without finding and fixing the leak is a temporary solution at best. The gas will escape again over weeks or months, leaving you with the same weak cooling problem and repeated top-up costs. That is why our aircon gas top-up service in Singapore always begins with leak detection. We check the system for leaks using visual inspection of joints and connections, soap bubble testing on suspected areas, and electronic refrigerant leak detectors for hard-to-find micro-leaks. Once the leak is found and repaired — by re-brazing joints, replacing damaged pipe sections, or tightening service valves — we vacuum the system to remove air and moisture, then charge the correct amount of refrigerant per the manufacturer specifications. We handle all common refrigerant types found in Singapore homes. R32 is the current standard for new aircon units — it has a 75 percent lower global warming potential than R410A and is more energy-efficient, reducing electricity consumption by up to 10 percent. R410A is the most common refrigerant in units installed between the mid-2000s and early 2020s — it does not deplete the ozone layer but has a higher global warming potential than R32. R22 (Freon) is found in older systems installed before the mid-2000s and is being phased out globally under the Kigali Amendment due to its ozone-depleting properties. R22 supply is limited in Singapore and increasingly expensive. Our technicians carry gas for all three types and can advise whether a top-up, leak repair, or system upgrade to a newer R32 unit makes the most sense for your situation and budget.