Your AC doesn't consume refrigerant gas — it circulates it in a closed loop. This means if your AC is low on gas, there's a leak somewhere. A common mistake is to simply "top up" the gas without finding and fixing the leak — the gas will disappear again within weeks.
Here's everything you need to know about AC gas refills in Barasat and Kolkata.
Important: Do NOT attempt to refill AC gas yourself. It requires certified equipment, knowledge of gas types, and proper handling. Incorrect refills damage the compressor.
Signs Your AC Needs a Gas Refill
- AC runs but cools poorly — especially noticeable in peak afternoon heat
- Ice forming on the indoor unit or copper pipes — a sign of low pressure
- Hissing or bubbling sounds from the outdoor or indoor unit
- AC takes much longer than usual to cool a room
- Electricity bill spikes — the compressor works overtime trying to compensate
- Water leaking from the indoor unit (frozen coil melting)
AC Does NOT Need Gas Refill If:
- Filter is dirty (clean it first and test again)
- Outdoor unit is blocked or dirty
- Thermostat is set incorrectly
- The AC was never low on gas before and nothing changed
A proper gas pressure check with a manifold gauge takes 10 minutes and confirms whether a refill is actually needed.
Which Refrigerant Gas Does Your AC Use?
| Gas Type | Common In | Notes |
|---|---|---|
| R22 (Freon) | ACs made before ~2012 | Being phased out; harder to source; expensive |
| R410A | Mid-range split ACs (2012–2020) | Common, widely available |
| R32 | New inverter ACs (2018 onwards) | Eco-friendly, lower GWP; standard now |
| R134A | Some specific models | Less common in home ACs |
How to check: Look at the label on your outdoor unit — the gas type is always printed there. Or check your owner's manual.
AC Gas Refill Cost in Barasat & Kolkata (2026)
| Gas Type | 1 Ton AC | 1.5 Ton AC | 2 Ton AC |
|---|---|---|---|
| R22 | ₹1,200 – ₹1,800 | ₹1,500 – ₹2,200 | ₹2,000 – ₹3,000 |
| R410A | ₹1,800 – ₹2,500 | ₹2,200 – ₹3,200 | ₹3,000 – ₹4,500 |
| R32 | ₹1,500 – ₹2,200 | ₹1,800 – ₹2,800 | ₹2,500 – ₹4,000 |
Note: Prices above include labour. Leak detection and repair is charged separately if a leak is found.
The Right Way to Do an AC Gas Refill
Many cheap "gas-filling" services in Kolkata simply pump in gas without checking for leaks. This is a waste of money. The correct process is:
- Step 1: Check suction and discharge pressure with manifold gauges
- Step 2: If pressure is low, perform a leak test (nitrogen pressure test or electronic leak detector)
- Step 3: Repair any leak found (braze, valve replacement, flare joint tightening)
- Step 4: Evacuate the system (remove moisture and air with a vacuum pump)
- Step 5: Recharge to manufacturer-specified pressure
- Step 6: Test cooling performance and verify pressures
At AC Reparing, we follow all 6 steps on every gas refill job — no shortcuts.
How Often Should You Refill AC Gas?
A properly installed, leak-free AC should never need a gas refill. Refrigerant doesn't evaporate — it circulates. If your AC needed a refill last year and needs one again, the leak was not properly fixed. Call us to identify and permanently repair the leak.
Book AC Gas Refill in Barasat Today
Leak detection + gas refill + 90-day warranty. Transparent pricing before we start.