AC Gas Refill Service in Dhaka — Restore Full Cooling Fast
Your AC blows warm air because the refrigerant is low. Our technicians find the leak, fix it, vacuum the lines, and recharge your system with the exact gas it needs — R32, R410a, or R22.
Why ACs Lose Refrigerant and What Happens Next
Air conditioners do not “consume” gas. Your system is a sealed loop. If the cooling drops, it means refrigerant is escaping somewhere — usually through a microscopic pinhole in the copper tubing, a corroded joint, or a vibrating valve. The loss happens slowly over months, so you might not notice until the room stops cooling entirely.
Running an AC with low refrigerant forces the compressor to work overtime. It runs hot, draws more electricity, and eventually burns out. A compressor replacement costs significantly more than a simple AC gas refill service in Dhaka. That is why catching it early matters.
Hoque Refrigeration And Engineering Works Ltd. follows a strict refill protocol. We never just top up the gas and leave. We pressurize the system with nitrogen to locate the leak, seal it, pull a deep vacuum to remove moisture and air, and then weigh in the exact amount of refrigerant the manufacturer specifies. Anything less is a temporary patch that wastes your money.
Warning Signs Your AC Needs a Gas Refill
Low refrigerant shows clear symptoms. If you spot any of these, turn the unit off to protect the compressor and call a technician.
Room Stays Warm
The AC runs continuously but the room never reaches the temperature you set on the remote. Cooling capacity drops sharply when gas is low.
Ice on Copper Pipes
Frost or ice building up on the outdoor unit copper connections is a classic sign. Low pressure causes the evaporator coil to freeze.
Water Leaks Indoors
As the indoor coil freezes and then melts, water overflows the drain pan and drips down your wall. Often mistaken for a drain clog.
Hissing or Bubbling Noise
A faint hissing sound from the indoor unit or a bubbling noise from the outdoor unit can indicate refrigerant escaping through a crack.
High Electricity Bills
Low gas means longer run times. The compressor struggles to hit the target temperature, pulling more power every hour it runs.
Uneven Coil Temperature
One side of the indoor coil feels cold while the other side feels warm. This imbalance confirms insufficient refrigerant flow.
If your AC shows these signs, do not delay. A quick inspection by our AC repair team in Dhaka confirms whether you need a refill or a different fix.
Refrigerant Types We Refill — R32, R410a, and R22
Using the wrong gas destroys your compressor. We identify the exact refrigerant your AC requires and charge it to manufacturer specifications.
R32 Gas Refill
R32 is the most common refrigerant in new AC units sold in Bangladesh. It is more energy-efficient, carries more heat per kilogram, and has a lower environmental impact than older gases. Most Walton, Gree, and Singer models manufactured after 2019 use R32.
- High cooling efficiency
- Lower electricity consumption
- Requires trained handling (mildly flammable)
- Common in new inverter ACs
R410a Gas Refill
R410a was the standard for inverter ACs before R32 took over. It operates at a much higher pressure than R22, which means the copper piping and compressor must be rated for it. General, Panasonic, and LG models often use R410a.
- Excellent cooling performance
- Standard in many 1.5–2 ton inverter ACs
- Requires proper vacuum before charging
- Cannot be mixed with R32 or R22
R22 Gas Refill
R22 (Freon) is phased out in most countries but many older AC units in Dhaka still run on it. Supplies are limited and costs are rising. If your older unit uses R22, we can still source it — or advise you if upgrading the unit makes better financial sense.
- Used in ACs older than 8–10 years
- Lower operating pressure
- Availability is decreasing globally
- System may need compressor evaluation
⚠️ Important: Never allow a technician to mix gases (for example, topping up R410a with R32). This creates unstable pressure, reduces cooling, and will permanently damage your compressor. We always flush and vacuum the system before charging the correct refrigerant.
Our AC Gas Refill Process — Done Right, Not Fast
Skipping steps ruins compressors. Here is the complete, correct procedure our technicians follow.
System Diagnosis and Leak Check
We connect pressure gauges to check the current refrigerant level. If the system is empty or very low, we pressurize the lines with nitrogen to locate the leak. Simply adding gas without fixing the leak means it will escape again within weeks.
Leak Sealing or Component Repair
Small pinhole leaks in copper tubing are brazed shut. If the leak is in the evaporator coil, condenser coil, or a valve, we quote you for the part replacement before proceeding. No surprise charges.
Deep Vacuum Pull (Mandatory)
Before any new gas goes in, we connect a vacuum pump and run it for 15 to 30 minutes. This removes all air, moisture, and non-condensable gases from the system. Skipping this step is the #1 cause of compressor failure after a refill.
Weighed Refrigerant Charge
We charge the exact weight of refrigerant specified on the AC unit nameplate — not by guessing or “feel.” Undercharging and overcharging both damage performance. A digital scale ensures accuracy.
Performance Test and Handover
The unit is started and monitored. We check the suction and discharge pressures, measure the supply air temperature, and verify the coil is not freezing. You feel the cooling difference before we leave.
AC Gas Refill Pricing in Dhaka
Transparent rates based on gas type and AC capacity. No hidden fees, no inflated parts charges.
| Refrigerant Type | 1 Ton AC | 1.5 Ton AC | 2 Ton AC | Includes |
|---|---|---|---|---|
| R32 Gas Refill | ৳2,000 | ৳2,500 | ৳3,000 | Vacuum + Weighed Charge |
| R410a Gas Refill | ৳2,500 | ৳3,000 | ৳3,500 | Vacuum + Weighed Charge |
| R22 Gas Refill | ৳1,800 | ৳2,200 | ৳2,800 | Vacuum + Weighed Charge |
| Nitrogen Leak Test | ৳500 | ৳500 | ৳500 | Pressure Test + Leak Location |
Prices cover standard refill situations. If copper brazing, valve replacement, or coil repair is needed to fix a leak, we provide a clear quote before doing the work. Want a clean unit too? Combine with our AC deep cleaning service and save.
We Refill AC Gas Across Dhaka City
Hoque Refrigeration And Engineering Works Ltd. dispatches technicians to every major neighborhood in Dhaka. Same-day slots are often available.
Why Choose Hoque Refrigeration And Engineering Works Ltd.
A gas refill is not a simple top-up. Done wrong, it destroys your compressor. Here is why Dhaka trusts our process.
We Always Pull a Vacuum First
Air and moisture in the line contaminate the new refrigerant. Our vacuum pump eliminates this risk before we add a single gram of gas.
Weighing Scale Accuracy
We charge by weight, not by guesswork. Overcharging causes high pressure and poor cooling; undercharging freezes the coil. Precision matters.
Leak Test Before Refill
If your system lost gas, it has a leak. We find it and fix it. Otherwise, you will be paying for another refill next month.
No Gas Mixing — Ever
We carry R32, R410a, and R22 in separate cylinders. Your system gets exactly what the manufacturer specified, nothing else.
30-Day Gas Hold Warranty
If the refrigerant we charge leaks out within 30 days, we return, find the leak, fix it, and recharge the system at no extra labor charge.
Full Appliance Service Team
Along with AC installation and gas refills, we service refrigerators, washing machines, microwave ovens, and televisions. One team for your entire home.
Frequently Asked Questions About AC Gas Refill in Dhaka
Clear, honest answers to the questions homeowners and office managers ask us most often.
How do I know which gas my AC uses?
How long does an AC gas refill take?
Why is pulling a vacuum necessary before refilling?
Can you refill gas without fixing the leak?
How much gas does my AC need?
Is R32 gas safe for home use?
Do you offer same-day AC gas refill in Dhaka?
What if my AC still does not cool after a gas refill?
Restore Your AC Cooling Today
Warm air from your AC means low refrigerant. Let us find the leak, fix it, and recharge your system properly. One call gets a technician to your door.
Hoque Refrigeration And Engineering Works Ltd.
House-47, Road No. 41, Gulshan Ave, Dhaka 1212
Phone: 01910528424 | Email: contact@acservicedhaka.bd
Service Hours: Every Day 8 AM – 12 AM | Service Area: Dhaka City