AC Gas Refill
Leak found and fixed first, then the correct gas charged for your AC.
An AC does not use up its gas. The refrigerant circulates in a sealed loop, so if your AC is short of gas, it has a leak somewhere. That is why our gas refill starts with finding and fixing the leak: topping up a leaking system only buys a few days or weeks of cooling before the gas escapes again.
Signs your AC is low on gas
- The air from the indoor unit feels cool but not cold, and the room never reaches the set temperature.
- Frost or ice forms on the copper pipes at the outdoor unit or on the indoor coil.
- The outdoor unit runs for hours without switching off, and the electricity bill climbs.
- A faint hissing or bubbling sound near the pipes or the indoor unit.
- Water dripping from the indoor unit after the ice on the coil melts.
If the filters are clean and the AC is in Cool mode but you still see these signs, gas is the likely cause. Our technician confirms it with a pressure reading before any gas is added.
How we refill the gas
- Pressure check: gauges on the service valve show how far the pressure has dropped.
- Leak test: the system is pressurised with dry nitrogen and the joints, flare nuts, coil bends and valves are checked with soap solution or an electronic detector.
- Leak repair: a flare joint is re-made, or a cracked joint or coil bend is brazed.
- Vacuum: a vacuum pump removes air and moisture from the pipes, which would otherwise damage the compressor.
- Charging: the correct gas is charged to the quantity on the unit's rating plate, weighed on a scale for inverter ACs.
- Performance check: running pressure, current draw and the air temperature at the indoor unit are measured before we leave.
Which gas does your AC use?
The gas type is printed on the rating sticker on the outdoor unit. Most split ACs sold in India in recent years use R32 or R410A. Older units, especially window ACs, often use R22, which is being phased out, so it costs more and is harder to source. Gases are never mixed: your AC is refilled only with the gas it was built for.
Why gas leaks are common in Chennai
Salty coastal air corrodes copper pipes and joints, especially on outdoor units facing the sea breeze or exposed on terraces. Long running hours in summer and vibration from the compressor also loosen flare joints over time. A badly done installation, with pipes not flared or tightened properly, is another frequent cause.
How long it takes
A refill with a simple joint repair usually takes 1.5 to 2 hours on site. If the leak is inside the indoor or outdoor coil, the repair can take longer, and in some cases replacing the coil is the better option. The technician explains the choice and the price before starting.
Keeping the gas in
- Book a service before every summer so joints and pipes are checked early.
- Keep the outdoor unit shaded and clear of debris, and wash salt and dust off its coil.
- Have the AC refilled only after the leak is fixed, never with a top-up alone.
What's included
- Comprehensive leak detection and minor repair
- System vacuuming to remove moisture and impurities
- Full refrigerant gas refill (R22/R32/R410A as per AC type)
- Post-refill pressure and performance check
- 30-day service warranty on the gas refill
Not included
- Cost of major spare parts (e.g., compressor, condenser coil replacement)
- Repair of major refrigerant line damage (beyond minor leak sealing)
- AC dismantling or reinstallation charges
- Gas top-up (this service is for a full refill after leak repair)
AC Gas Refill — Approximate prices
| Split AC, 1 ton (R32 / R410A) | ₹2,000 – ₹3,000 |
| Split AC, 1.5 ton (R32 / R410A) | ₹2,400 – ₹3,500 |
| Split AC, 2 ton (R32 / R410A) | ₹3,000 – ₹4,200 |
| Window AC (R22 / R32) | ₹1,800 – ₹2,800 |
Approximate market prices; they change with parts and gas costs, and the technician confirms the exact price before any work begins. Prices include the gas, labour, leak test and vacuuming. Repairing a leak inside the coil and any spare parts are quoted separately.
How It Works
Book in minutes
Choose your service and a convenient date online, or call/WhatsApp us.
Doorstep diagnosis
A verified technician inspects the appliance and shares transparent pricing.
Repair & warranty
We fix it on the spot where possible — backed by a 30-day service warranty.
Common Issues We Fix
AC not cooling
Common causes are low refrigerant gas, a choked filter, or a faulty compressor. We diagnose and fix it, with gas top-up if required.
Water leaking from indoor unit
Usually a blocked drain pipe or dirty filter. Our deep-cleaning service clears it and prevents recurrence.
AC making noise
Often a loose part, fan issue, or compressor fault. We inspect and repair the source of the noise.
Bad smell from AC
Caused by mould or bacteria in the coils. A jet/foam deep clean removes it and improves air quality.
Daikin
Hitachi
Samsung
LG
Blue Star
Carrier
Haier
AC Types We Service
Every kind of air conditioner — residential and commercial.
Frequently Asked Questions
Why does my AC need a gas refill at all?
An AC does not consume gas, so if it needs a refill, the gas has leaked out. We find and fix the leak first, then refill, so the gas stays in.
Can you just top up the gas without fixing the leak?
We don't recommend it. Gas added to a leaking system escapes again within days or weeks, and the AC runs short of gas in the meantime, which strains the compressor.
How do I know which gas my AC uses?
It is printed on the rating sticker on the outdoor unit: usually R32 or R410A on newer split ACs, and often R22 on older or window units. The technician confirms it before refilling.
How long does an AC gas refill take?
About 1.5 to 2 hours, including the leak test, a simple joint repair, vacuuming and charging. A leak inside the coil can take longer.
How often should an AC need a gas refill?
Ideally never. A correctly installed AC with no leaks keeps its gas for its whole life, so needing refills again and again means a leak is still there.
Helpful guides
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- Window vs Split vs Inverter AC: Which One Actually Suits a Chennai Home? Navigating Chennai's heat requires the right AC. This guide breaks down Window, Split, and Inverter ACs, helping you cho...
- AC AMC vs Pay-Per-Repair: Which Saves a Chennai Home More? Deciding between an AC AMC and pay-per-repair in Chennai? Compare the long-term savings, convenience, and AC health bene...
What Customers Say
“My brother had been complaining about the Air Conditioner for a while, so we called them once the Air Conditioner problem got worse. Also, a couple of other minor issues were checked free of charge.”
“The Hitachi Air Conditioner had been giving trouble for a while before we finally dropped a message, after asking around for recommendations. Worth noting, there was no attempt to oversell the repair, which made the whole thing easier.”
“The engineer who visited who handled our Air Conditioner was easygoing and sorted the cooling speed issue faster than expected. Beyond the repair itself, the cooling speed issue was explained in simple terms instead of technical jargon. Reasonably priced for what was done, and told a couple of neighbours in Pallavaram to try them too.”