2026 Kolkata Market Rates · Updated June 2026
AC Gas Refill Charges in Kolkata — Complete 2026 Price List
R32, R410A & R22 gas prices per kg · Split AC & Window AC · Top-up vs full refill · All tonnages · With & without leak repair
If your AC has stopped cooling and you suspect the gas is low, the first thing you want to know is: how much will an AC gas refill cost in Kolkata? The answer depends on three things — the type of gas your AC uses, how much gas is needed (top-up vs full refill), and whether a leak needs to be repaired first.
This page gives you the complete, honest 2026 price list for AC gas refilling in Kolkata — broken down by gas type, AC type, and tonnage — so you know exactly what to expect before a technician arrives.
We are
Unique Aircon — certified AC specialists based in Jadavpur, South Kolkata. We have been refilling AC gas across South and Central Kolkata for 9+ years. All prices below reflect current 2026 market rates. Call
+91 83469 04100 or
WhatsApp for a quote.
⚠ Important before you read prices: AC refrigerant gas does not get consumed during normal operation — it circulates in a sealed loop. If your AC needs a gas refill, it almost always means there is a leak. A genuine technician will find and fix the leak before refilling — otherwise you will need another refill within months. Always insist on leak detection first.
AC Gas Price Per Kg in Kolkata — 2026
The type of gas your AC uses is the biggest factor in the total cost. Here is the current per-kg price of each gas type in the Kolkata market:
R32
Most common · 2018 onwards
₹600–₹900
per kg in Kolkata
Used in all new split ACs from 2018 onwards. Eco-friendly, efficient, moderate pressure. Standard for Voltas, LG, Daikin, Hitachi, Samsung, Panasonic.
1.5 ton typically needs 1–1.3 kg
R410A
Common · 2010–2020 ACs
₹700–₹1,000
per kg in Kolkata
Used in split ACs from 2010 to 2020. Higher system pressure than R32. No ozone depletion but higher global warming impact. Still widely used.
1.5 ton typically needs 1.2–1.5 kg
R22
Legacy · Being phased out
₹800–₹1,200
per kg in Kolkata
Used in ACs made before 2015. Being phased out — harder to source in Kolkata now, hence higher price. If your AC uses R22 frequently, consider upgrading.
Availability reducing in Kolkata
Split AC Gas Refill Charges in Kolkata — All Tonnages (2026)
Prices include labour, manifold gauge check, and gas. Leak repair is additional if required (see below).
| Tonnage |
Gas Top-Up (partial) |
Full Refill (vacuum + recharge) |
Gas Used (approx) |
| 1.0 Ton Split AC |
₹1,500 – ₹2,000 |
₹2,200 – ₹3,000 |
0.7 – 0.9 kg |
| 1.5 Ton Split AC |
₹1,800 – ₹2,500 |
₹2,500 – ₹3,500 |
1.0 – 1.3 kg |
| 2.0 Ton Split AC |
₹2,200 – ₹3,000 |
₹3,000 – ₹4,500 |
1.4 – 1.8 kg |
| 2.5 Ton Split AC |
₹2,800 – ₹3,500 |
₹3,500 – ₹5,000 |
1.8 – 2.2 kg |
Prices based on R32 gas (most common for post-2018 ACs). R410A adds ₹200–₹400. R22 adds ₹300–₹600 due to limited availability. Leak repair is additional — see table below.
Window AC Gas Refill Charges in Kolkata — 2026
Window ACs in Kolkata — common in older South Kolkata homes — typically use R22 or R410A:
| Tonnage |
Gas Top-Up |
Full Refill |
Gas Type |
| 1.0 Ton Window AC |
₹1,200 – ₹1,800 |
₹1,800 – ₹2,800 |
R22 or R410A |
| 1.5 Ton Window AC |
₹1,500 – ₹2,200 |
₹2,000 – ₹3,200 |
R22 or R410A |
| 2.0 Ton Window AC |
₹1,800 – ₹2,500 |
₹2,500 – ₹3,800 |
R22 or R410A |
Gas Top-Up vs Full Gas Refill — Which Do You Need?
This is the most commonly misunderstood distinction. Here is what each means and when you need it:
⬆️ Gas Top-Up (Partial)
When gas is slightly low but system is intact
- Technician checks pressure with manifold gauge
- Adds only the amount needed to reach spec pressure
- Done without vacuuming the system
- Faster — 45–60 minutes
- Lower cost than full refill
✓ Right choice when AC still cools but not as cold
🔄 Full Gas Refill
After leak repair or when gas is very low
- Leak detected and repaired first
- System vacuumed to remove moisture and air
- Full charge added to manufacturer specification
- Takes 2–3 hours
- Higher cost but complete and long-lasting
✓ Right choice when AC has stopped cooling entirely
Never accept a top-up without a pressure check first. A technician who adds gas without checking current pressure may overfill — which is as damaging as underfilling and causes the exact same cooling problems.
Leak Repair Charges in Kolkata — What Gets Added to Gas Refill Cost
If your AC has a gas leak (which is very common), the leak must be fixed before refilling. Here are the additional costs:
| Leak Type / Location |
Additional Repair Cost |
Difficulty |
| Flare nut / valve leak (minor) |
₹300 – ₹600 |
Easy |
| Copper pipe pinhole leak (brazing) |
₹600 – ₹1,200 |
Moderate |
| Evaporator / condenser coil leak |
₹1,000 – ₹2,500 |
Complex |
| Multiple leaks / major pipe damage |
₹2,000 – ₹4,000+ |
Major work |
Real Total Cost Examples — What Kolkata Customers Actually Pay
To give you a complete picture, here is what the total bill looks like for the most common scenarios:
Scenario 1
1.5 Ton AC, gas slightly low, no leak
Gas top-up (R32, ~0.4 kg)₹800
Pressure check & labour₹500
Total₹1,300 – ₹1,500
Scenario 2
1.5 Ton AC, stopped cooling, minor flare nut leak
Leak repair (flare nut)₹400
Full gas refill (R32, vacuum + charge)₹2,500
Total₹2,800 – ₹3,200
Scenario 3
2 Ton AC, coil leak, full refill with R410A
Coil leak detection & repair₹1,800
Full gas refill (R410A, 1.5 kg)₹3,200
Total₹4,500 – ₹5,500
Scenario 4
1.5 Ton Window AC, R22, minor leak
Leak repair₹500
Gas refill (R22, 1.2 kg)₹1,800
Total₹2,200 – ₹2,800
How to Find Out Which Gas Your AC Uses
You do not need to call a technician just to find out the gas type. Check the sticker on the outdoor unit of your AC — it will have a label showing the refrigerant type. Look for a line that says "Refrigerant" or "Gas" followed by R32, R410A, or R22.
📋
Check the outdoor unit sticker
The specification sticker on your outdoor unit clearly states the refrigerant type. It is usually on the side or back of the unit.
📅
Go by year of manufacture
2018 onwards = R32. 2010–2020 = R410A likely. Before 2015 = possibly R22. Year of manufacture is on the same sticker.
📱
Check your AC manual or model number
Search your AC model number online — the first result from the manufacturer's website will list the refrigerant type in specifications.
5 Ways to Avoid Being Overcharged for AC Gas Refill in Kolkata
1
Know your gas type before calling. Once you know it is R32, R410A, or R22 — you can cross-check the quote. A reputable technician's gas cost should align with current market prices per kg.
2
Insist on a manifold gauge pressure check before any gas is added. If a technician wants to add gas without checking the current pressure, decline. This is how unnecessary full refills get charged for top-up situations.
3
Ask for the leak to be fixed before gas is added. If the technician wants to refill without repairing the leak — refuse. Gas added into a leaking system will escape within weeks and you will need to pay again.
4
Get an itemised quote before work starts. The quote should break down: visit charge, gas cost (how many kg at what rate), leak repair if needed, and labour. Hidden charges after the job are a red flag.
5
Use a local certified technician, not a platform aggregator. Platforms like Urban Company and NoBroker charge platform fees and often send subcontracted technicians with no accountability. A local certified team like Unique Aircon gives you direct accountability and a genuine 30-day warranty.
Frequently Asked Questions — AC Gas Refill Charges in Kolkata
Q
What is the AC gas refill charge in Kolkata for a 1.5 ton split AC?
For a 1.5-ton split AC in Kolkata, a gas top-up costs ₹1,800 to ₹2,500 and a full vacuum + recharge costs ₹2,500 to ₹3,500. This is based on R32 gas at current 2026 Kolkata market prices. If a leak needs to be repaired first, add ₹300 to ₹1,200 depending on the leak location. At Unique Aircon, the final price is confirmed before work begins.
Q
What is the AC gas price per kg in Kolkata in 2026?
R32 gas costs ₹600 to ₹900 per kg in Kolkata. R410A costs ₹700 to ₹1,000 per kg. R22 (being phased out) costs ₹800 to ₹1,200 per kg due to limited availability. The total service charge includes the gas cost plus labour, manifold gauge use, and leak repair if needed.
Q
How much does window AC gas refill cost in Kolkata?
Window AC gas refill in Kolkata costs ₹1,200 to ₹2,200 for a top-up and ₹1,800 to ₹3,200 for a full refill, depending on tonnage (1 ton, 1.5 ton, or 2 ton). Most window ACs in Kolkata use R22 or R410A. R22 is slightly more expensive due to its phase-out. Leak repair is additional if required.
Q
Why does my AC need gas refill every year?
AC gas does not get consumed during normal operation — it circulates in a sealed loop. If you need a refill every year, your AC has a gas leak that is not being properly repaired. A top-up that masks the leak will just require another top-up next season. Insist on leak detection and proper repair — it is a one-time fix that eliminates annual refill costs.
Q
How do I book AC gas refill service in Kolkata?
Call or WhatsApp Unique Aircon on
+91 83469 04100 or
WhatsApp here. We are based in Jadavpur and provide same-day gas refill service across South and Central Kolkata — Jadavpur, Garia, Tollygunge, Ballygunge, Kasba, Behala, Dhakuria, Santoshpur, and all surrounding areas. Tell us your AC brand, tonnage, and area — we confirm a slot immediately.
Same-Day Gas Refill · South & Central Kolkata
Book AC Gas Refill in Kolkata Today
Transparent pricing confirmed before we start · Leak detection included · All gas types · 30-day warranty
📍 3/87 C. R. Colony, Jadavpur, Kolkata – 700032 · Jadavpur · Garia · Tollygunge · Ballygunge · Kasba · Behala · Dhakuria · Santoshpur · Mukundapur · Ruby · Sonarpur
Last updated: June 2026 · Unique Aircon — Certified AC Gas Refill Specialists, Kolkata, West Bengal
