An AC gas refill in Dhaka typically costs between BDT 2,500 and BDT 7,500, depending on the refrigerant type (R-22, R-410a, or R-32) and unit capacity. Sunlit Pvt. Ltd. recommends a full system vacuum and leak repair before refilling to ensure long-term cooling efficiency and safety
Living in Dhaka means navigating a climate where the humidity often feels like a heavy, wet blanket draped over the city. When the mercury hits 40°C in mid-April, your AC isn’t just a luxury; it’s a survival tool for your family’s comfort and health.
At Sunlit, we frequently encounter homeowners in areas like Gulshan and Bashundhara who are confused about “gas finishing.” The reality is that in a perfect world, an AC is a hermetically sealed system—the gas (refrigerant) should theoretically last the lifetime of the machine.
However, the intense vibration of the outdoor compressor, the corrosive salt-laden air near the Turag river or Purbachal’s developing dust, and often, substandard initial installations lead to microscopic leaks in the copper piping.
| Service Component | R-22 Gas (Non-Inverter) | R-410a Gas (Inverter) | R-32 Gas (Eco-Friendly) |
|---|---|---|---|
| Approx. Price (1.5 Ton) | BDT 2,500 - 3,500 | BDT 4,000 - 5,500 | BDT 5,000 - 7,000 |
| Operating Pressure | 60 - 70 PSI | 110 - 130 PSI | 120 - 140 PSI |
| Cooling Efficiency | Moderate | High | Very High |
| Environmental Impact | High (Ozone Depletion) | Low (GWP) | Very Low |
| Recommended Check-up | Every 12 Months | Every 6 Months | Every 6 Months |
The type of gas your unit uses dictates both the refill cost and the cooling performance. Older, non-inverter models typically use R-22, a gas that is gradually being phased out in Bangladesh due to its ozone-depleting properties. Most modern inverter units currently dominating the Dhaka market use R-410a or the significantly more efficient R-32.
R-32 is rapidly becoming the “Sunlit Standard” because it has a higher heat-carrying capacity. In plain English: it handles Dhaka’s extreme summer peaks much better than older variants, cooling your room faster while putting less strain on the compressor.
If a technician tells you, “Brother, the gas is just finished because it’s old,” they are likely misinformed or cutting corners. Refrigerant is not a fuel like Octane; it doesn’t get consumed. If it’s low, there is a physical hole. This usually occurs at the Flare Nut connections or within the Evaporator Coil (the indoor “net”). Without identifying and brazing these leaks, you will find yourself calling for another refill in three months.
You don’t need to be an HVAC engineer to spot the warning signs. If you notice your AC is running for hours but the air coming out of the vents feels “lukewarm” rather than “crisp,” check your outdoor unit.
One of the most visual indicators of low refrigerant is ice. If you open the front panel of your indoor unit and see frost building up on the copper coils, or if the thin discharge pipe on the outdoor unit is white with ice, your gas level is critically low. This happens because the low pressure causes the temperature to drop below freezing, turning ambient humidity into ice and eventually blocking all airflow.
Keep a close eye on your DESCO or DPDC prepaid meter. When an AC is low on gas, the thermostat never reaches the target temperature (say, 24°C). Consequently, the compressor stays in “high-gear” indefinitely. In an inverter AC, this negates all energy-saving benefits, leading to a monthly bill that could be 30-40% higher than usual.
If your bill has spiked, first confirm your AC is the correct size for your room. Please use our free AC Tonnage Calculator before calling for a gas refill.
At Sunlit Pvt. Ltd., we treat a gas refill as a surgical procedure. We don’t just “hook up the tank.”
Before a single gram of gas is added, we perform a Nitrogen Pressure Test. By pumping dry nitrogen into the lines at high pressure, we can listen for hisses or use soap-bubble solutions to find the leak. This ensures that the Taka you spend on new gas isn’t literally vanishing into thin air.
This is the step most “street” technicians skip to save 30 minutes. Before refilling, the entire system must be put under a vacuum using a dedicated vacuum pump. This removes air and, more importantly, moisture. If moisture remains inside the copper pipes, it reacts with the AC oil to create a corrosive acid. This acid eats the compressor windings from the inside out, leading to a “dead compressor” within a year.
While many use a manifold gauge to check pressure, the most accurate way—especially for R-410a and R-32—is by weight. We use digital scales to ensure we add exactly what the manufacturer (whether it’s General, Gree, or Samsung) specifies on the nameplate. This prevents “slugging,” where liquid refrigerant enters the compressor and destroys it.
The ongoing dollar fluctuation and import duties at Chittagong Port have made refrigerant prices in the Nawabpur and Dholaikhal wholesale markets quite volatile.
| Service Type / Gas | Typical Price Range (BDT) |
|---|---|
| 1.5 Ton AC Refill (Common Service Charge) | ৳3,000 – ৳5,000+ |
| Sebokbd Gas Service (All Ton AC, R‑22/R‑410a) | ৳2,650 – ৳5,500 |
| Air Care AC Gas Charge (Up to 2.5 T capacity) | Approx. ৳2,500 |
| Service Center Refill General Listing | ৳2,500 – ৳5,000 |
| Bulk R‑410a Refrigerant Cylinder (Retail Material) | ৳18,000 + for 11 kg bottle |
| R‑22 Refrigerant Material (Cylinder) | ৳2,000 – ৳60,000+ (varies by cylinder & brand) |
A standard 1.5-ton AC refill currently ranges from BDT 3,500 to BDT 5,500 for R-410a. R-22 is slightly cheaper but becoming scarce. R-32, being the premium choice, often sits at the top end of the bracket. Note that “Top-ups” (adding a little gas) are cheaper than a “Full Charge” (filling from zero), but a full charge is always recommended after a leak repair to ensure gas purity
Beware of technicians offering a full refill for BDT 1,500 or 2,000. Low-grade, “reclaimed,” or adulterated gases are common in the local market. These mixtures often contain flammable hydrocarbons that are not designed for your AC’s compressor, significantly increasing the risk of fire or explosion.
In recent years, Dhaka has seen a rise in tragic AC-related accidents in Moghbazar and Gulshan. Safety isn’t an option; it’s a mandate.
Sunlit strictly adheres to the Bangladesh National Building Code (BNBC) 2020. This includes ensuring proper ventilation for outdoor units and using specified gauge copper pipes. Overcrowding outdoor units in narrow building gaps (common in Dhanmondi) can lead to overheating and high-pressure bursts.
2. Why Proper Earthing and Pressure Testing Save Lives
Many “explosions” are actually electrical terminal failures caused by poor building earthing. When combined with a gas leak, a small spark can lead to a catastrophe. Always ensure your technician checks the electrical terminals for carbon deposits and tightness.
Managing HVAC in Dhaka requires understanding local logistics.
1. Managing Services in Bashundhara, Gulshan, and Uttara
In residential hubs like Bashundhara R/A or Uttara, the high salt content in the air (due to proximity to open water or marshlands) causes the “Blue Fins” of your AC to corrode faster. We recommend a protective anti-corrosion coating during your gas refill service to extend the life of your coils.
2. Dealing with DESCO and DPDC Load Fluctuations
Dhaka’s power grid is notorious for voltage sags. These sags cause the compressor to draw more current, heating up the gas lines. If your gas is already low, this heat buildup is accelerated. Installing a high-quality voltage stabilizer is a smart move for any upper-middle-class household to protect their HVAC investment.
Choosing the right AC service in Dhaka is the difference between a cool, quiet summer and a costly, dangerous catastrophe. A gas refill is not a simple “fill-up”; it is a technical procedure requiring precision, specialized tools, and authentic refrigerants. At Sunlit Pvt. Ltd., we don’t just patch things up; we diagnose the root cause, repair the integrity of your system, and optimize it to survive Dhaka’s harshest heatwaves. Secure your home’s air quality and your family’s safety by trusting the engineering experts who understand Dhaka’s infrastructure inside out.
The procedures described in this guide follow international HVAC standards. For technical reference:
https://www.ashrae.org/technical-resources/standards-and-guidelines
https://www.epa.gov/mvac/refrigerant-handling-regulationsSecure Your Property’s Future with Dhaka’s Most Trusted Engineers. Don’t gamble with your home’s safety. Consult with the firm that has shaped Dhaka’s skyline for 40 years.
BDT 2,500–7,500 depending on gas type and unit size
R-22 is old and being phased out, R-410A is standard for inverter ACs, R-32 is the most efficient and eco-friendly
We utilize specialized moisture-resistant (MR) boards, thermal-break windows, and advanced ventilation engineering to prevent mold and wood rot, which are common in cheaper, poorly ventilated Dhaka renovations.
Not consumption — always a physical leak in copper piping or flare nut connections
Risk of compressor damage, fire hazard, and voided warranty
A proper refill including pressure test and vacuum takes 2–3 hours. A 30-minute refill is cutting corners.
Ice on evaporator coils, lukewarm air from vents, and 30–40% higher electricity bills are the three signs
An air conditioner does not consume gas. Refrigerant circulates in a sealed closed-loop system.
If gas is genuinely low, there must be a physical leak.
Stop the break-fix cycle. Learn Sunlit’s technical approach to HVAC preventative maintenance in Dhaka, focusing on advanced protocols like Inverter checks, Dhaka Dust Mitigation, and Energy Audits to maximize asset longevity and operational efficiency
এই নির্দেশিকাটির উদ্দেশ্য হলো আপনাকে খুব সহজভাবে এসির সবচেয়ে সাধারণ সমস্যাগুলো সম্পর্কে জানানো এবং মেরামতের জন্য কেমন খরচ হতে পারে, তার একটি স্বচ্ছ ধারণা দেওয়া।