AC Gas Refill Service in Dhaka – Fast, Safe & Affordable
Is your AC running but the room stays warm? Low refrigerant is the most common cause. Mohammadi Engineering Ltd. provides professional AC gas refill service across Dhaka — using the correct refrigerant type, calibrated pressure testing, and full leak detection before every refill.
What Is AC Gas Refill & Why Does Your AC Need It?
Refrigerant — commonly called “AC gas” — is the chemical that absorbs heat from inside your room and releases it outside, creating the cooling effect. Unlike engine oil, refrigerant is not consumed during normal operation. It circulates in a sealed loop indefinitely.
So if your AC is low on gas, it almost always signals a leak somewhere in the system. Simply topping up without repairing the leak is a short-term fix that ends up costing more. At Mohammadi Engineering Ltd., every AC gas refill job starts with leak detection and diagnosis — we fix the root cause first, then refill with the correct refrigerant to the manufacturer-specified pressure.
- We identify the correct gas type — R22, R32, or R410A — from your outdoor unit’s spec label
- We fill to the exact manufacturer-specified PSI using a calibrated manifold gauge set
- We inspect all pipes, joints, and coils for leaks before adding any refrigerant
- Post-refill cooling performance test included with every single job
Why Customers Choose Mohammadi Engineering Ltd.
Since 2020, we have completed hundreds of AC gas refill jobs across Dhaka city — never cutting corners on safety or accuracy.
6 Signs Your AC Needs a Gas Refill
Catching low refrigerant early prevents serious compressor damage. These are the most reliable indicators your AC needs attention — do not ignore them.
AC Not Cooling the Room
The unit runs continuously but the room temperature never reaches the set level. This is the most classic sign of insufficient refrigerant gas.
Ice on the Evaporator Coil
Low gas pressure causes the evaporator coil to get too cold, resulting in visible ice build-up on the indoor unit — often mistaken for a separate problem.
Rising Electricity Bills
When refrigerant is low, the AC runs much longer cycles to compensate, driving up power consumption — sometimes by 20–30% above normal.
Hissing or Bubbling Sound
A hissing noise near the copper pipes signals a refrigerant leak. Bubbling sounds can mean gas is actively escaping through a compromised pipe joint.
Water Dripping from the Indoor Unit
Frozen coils melt when the AC cycles off, causing excess water to drip from the indoor unit — a direct downstream effect of low refrigerant levels.
Compressor Tripping Frequently
Low refrigerant causes the compressor to overheat and trip the circuit repeatedly. Left unaddressed, this leads to permanent and costly compressor failure.
How We Handle Your AC Gas Refill — Step by Step
We never just “top up” the gas without inspection. Every job follows a structured 5-step process designed for a long-lasting, safe result.
Initial Inspection
We check cooling output, airflow, and current refrigerant pressure to assess the overall system condition.
Leak Detection
Using soap solution or an electronic leak detector, we pinpoint any refrigerant leak in pipes, coils, or joints.
Leak Repair
Any found leak is repaired before gas is added — this prevents the same problem from recurring within weeks.
Gas Refill
The correct refrigerant (R22, R32, or R410A) is filled to the manufacturer-specified pressure using a calibrated manifold gauge.
Performance Test
We run the unit and verify cooling output, pressure readings, and power draw before leaving your premises.
Which AC Gas Does Your Unit Use? R22 vs R32 vs R410A
Using the wrong refrigerant can permanently damage your compressor and void your warranty. Here is a clear comparison to help you identify what your AC needs — our technician confirms this from your outdoor unit sticker before every job.
| Gas Type | Common AC Models | Environmental Impact | Status in Bangladesh | Key Notes |
|---|---|---|---|---|
| R22 (Freon) | ACs made before 2010–2015 | High ODP | Being phased out | Still serviceable but supply is shrinking. Consider upgrading your unit. |
| R410A (Puron) | Split ACs from 2010–2019 | Medium (No ODP) | Common | No ozone depletion but higher global warming potential. Widely used in Dhaka homes. |
| R32 | Inverter ACs 2019 onwards | Lower GWP | Most popular now | Used in Gree, Midea, Samsung, LG latest models. More energy-efficient than R410A. |
| R134A | Some older window ACs | Medium | Less common | Primarily found in automotive ACs. Rare in residential home units in Bangladesh. |
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Important: The refrigerant type is printed on the specification sticker on your outdoor unit. Our technician verifies this before starting. Never mix different refrigerant types — it causes irreversible compressor damage. Unsure about your AC’s gas? Call 01859-976686 and we will advise you for free.
AC Gas Refill Price in Dhaka
We believe in upfront, honest pricing with no hidden charges. The table below is a general guide — your exact quote depends on refrigerant type and quantity needed.
| AC Capacity | Estimated Price (BDT) | What’s Included |
|---|---|---|
| 1 Ton Split AC | 2,000 – 2,500 ৳ | Leak check + gas refill + cooling test |
| 1.5 Ton Split AC | 2,500 – 3,000 ৳ | Leak check + gas refill + cooling test |
| 2 Ton Split AC | 3,000 – 3,500 ৳ | Leak check + gas refill + cooling test |
| 2.5 Ton Split AC | 3,500 – 4,000 ৳ | Leak check + gas refill + cooling test |
| Inverter AC (any size) | 3,000 – 4,500 ৳ | Gas type verification + leak check + refill + test |
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Final price depends on refrigerant type (R22 costs more due to limited supply), actual quantity required, and whether pipe repairs are needed. We provide an exact quote after the initial inspection — no payment required before diagnosis. For urgent calls: 01859-976686.
AC Gas Refill for All Major Brands in Dhaka
Why Dhaka Residents Trust Mohammadi Engineering Ltd.
5+ Years of Hands-On Experience
Since 2020, Mohammadi Engineering Ltd. has been a trusted name for AC repair and gas refill services across Dhaka city. Our technicians have direct experience with every AC brand and model sold in Bangladesh.
24/7 Same-Day Service
AC problems do not follow office hours — and neither do we. We offer emergency AC repair and gas refill 24 hours a day, 7 days a week across all of Dhaka, including Fridays and holidays.
Leak Detection Before Every Refill
We never skip the leak test. Topping up gas without repairing the leak wastes your money — the gas escapes again within weeks. We always find and fix the source first.
Transparent, Upfront Pricing
We give you the cost estimate before starting any work. If additional repairs are needed during the job, we inform you and ask for approval first — no surprise charges at the end.
Home Visit — No Need to Move Your AC
Our technician comes to your home or office in Dhaka with all required tools. We carry out the complete AC gas refill and inspection on-site. You do not need to carry the unit anywhere.
Calibrated Tools & Correct Gas
We use manifold gauge sets, vacuum pumps, and electronic leak detectors — not guesswork. Precise tools ensure your refrigerant is filled to the exact spec, which means better cooling and a longer-lasting result.
AC Gas Refill Service Areas in Dhaka City
Mohammadi Engineering Ltd. covers all major residential and commercial areas of Dhaka. Wherever you are in the city, our technicians can reach your location fast.
Don’t see your area listed? Call 01859-976686 — we serve all neighbourhoods across Dhaka city. View Full Service Area Map →
Other AC & Appliance Services We Offer
Mohammadi Engineering Ltd. provides a complete range of air conditioner and appliance repair services across Dhaka — all handled by the same trusted team.
AC Repair Service Dhaka
Complete diagnosis and repair for all AC problems — cooling failure, unusual noise, compressor issues, error codes, and more. All major brands covered.
Learn About AC RepairAC Servicing Dhaka
Regular professional servicing extends your AC’s lifespan, restores cooling efficiency, and helps reduce monthly electricity bills significantly.
Learn About AC ServicingAC Installation Dhaka
New AC installation for homes, offices, and commercial spaces — including proper pipe routing, wall bracket fixing, and initial gas charging after fitting.
Learn About AC InstallationInverter AC Repair Dhaka
Specialist repair and gas refill for all inverter AC models — Gree, LG, Samsung, Midea, Daikin, and more. Inverter systems require specific handling to avoid circuit damage.
Learn About Inverter AC RepairSplit AC Repair Dhaka
Expert repair of all split AC types — wall-mounted, ceiling cassette, floor-standing, and multi-split systems. We carry spare parts for all major brands.
Learn About Split AC RepairFridge Gas Refill Dhaka
Refrigerator not cooling properly? We provide professional fridge gas refill and leak repair for all refrigerator brands and models across Dhaka city.
Learn About Fridge Gas Refill