Aircon Gas Top-Up in Singapore

Prices checked October 2026 against the published price lists of 526 contractors listed on Homees, MOM's 2025 wage data and Qanvast's 2026 report. How we price →

Key takeaways

• Gas top-ups run S$60–S$150 depending on refrigerant type (R22, R32, R410A) and amount.
• Insist on a leak check before topping up — gas doesn't vanish on its own.
• A top-up without sealing the leak is a repeat appointment waiting to happen.
• Weak cooling that returns after a top-up confirms a leak that needs proper repair.

Aircon blowing but not cooling? Nine times out of ten it's gas pressure — a quick fix, if you don't get upsold along the way. Here's what a top-up should cost by refrigerant type, and the one question that protects you from paying twice. More troubleshooting in why is my aircon not cold.

Before engaging in an aircon service, it is vital to read through HDB's guidelines on aircon installation and servicing. You can find out more about the guidelines here.

Aircon Services Cost Calculator

Use this aircon servicing cost calculator to estimate your bill.

Aircon Gas Top-up Rates In Singapore

Unit(s)	Price
1 Fan coil	$120 – $180
2 Fan coils	$250 – $320
3 Fan coils	$350 – $430
4 Fan coils	$430 – $530
5 Fan coils	$500 – $600
6 or more	$90 – $120 each

No. of aircon fan coils	Price
<= 12000 BTU	~ $120 per fan coil
>=18000 BTU	~ $150-$180 per fan coil

Type	Price
R22 Gas	$30-$80
R410A GAS	$60-$150

How Does The Process Of Gas Top-up Works?

Air-conditioners use liquid or gas as a refrigerant for the air that will be delivered to cool a room or space. Over time, it's possible that there will be refrigerant storage leaks, and the chemical slowly seeps out, emptying the container.

Top-ups of gas replace the chemical gas coolant in your air conditioner's refrigerant storage unit so that your air-conditioner can continue to work at high efficiency and last for a longer time. A multitude of factors may lead to gas leakages, but the common few include improper installation, poor quality copper pipe, as well as simple depreciation over time.

Professionals usually use a gauge to check for the refrigerant level inside your air-conditioning unit., checking the level of gas needed. Then, a refrigerant tank will be used to charge up gas into the air-conditioner so that the gas levels go back to normal.

** Do note that different companies may cover various aspects, not all companies provide the same level of service.

1. Initially, we examine the cooling coil and get a feel of it with our hands to see if a gas top-up is required.
2. If the cooling coil isn't cold enough, we'll check the air conditioning gas level.
3. We'll then check the gas level in your unit.
4. The cost of refuelling the air conditioner will be determined by the amount of gas required.
5. Following that, we'll fill up the gas tank.
6. We'll use the gauge to check the gas level one last time.
7. Finally, we'll examine other components to ensure that everything is in working order.

Aircon Gas Top Up Price

Type	Price
R22 Gas	$30-$80
R410A Gas	$60-$150

Questions to Ask Prospective Aircon Gas Top Up Companies

• What is the size of your company (total staff strength)?
• What kinds of training have your staff been through?
• Are your aircon technicians certified to handle refrigerant gas?
• Can you provide a free written estimate outlining all the terms and conditions of what we discuss?
• What are the payment terms? Do you offer a financing plan?
• Do you provide a warranty or guarantee for your servicing or the unit?
• Do you provide 24-hours emergency aircon servicing?
• Do you have a refund policy for customers not satisfied with your service?
• How long will the servicing take? Will you clean up after the job is completed?
• What is the brand of aircon you will be using for my installation job?

This list of questions, albeit a long and tedious one, can ensure your air conditioning install or repair process goes smoothly. You can view more items in our full list of questions in our FAQ.

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How to choose well

1. The key requirement. Technicians must be certified to handle refrigerants — R22, R32 and R410A behave differently and pricing varies by gas.
2. Ask them to check for leaks before topping up — gas doesn't vanish on its own, and a top-up without a leak check is a repeat appointment waiting to happen.
3. Reviews with specifics beat star counts. Look for reviews that mention your job type and how problems were handled — not just "good service".
4. Itemised quotes only. A lump-sum quote is where surprises hide. Line items let you compare fairly across companies.
5. Never pay fully upfront. Deposit, progressive payments, and a retention until the work is done and checked.

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What it should cost

Gas top-ups run S$60–S$150 depending on refrigerant type and amount. For the full pricing breakdown, see our cost guide.

Prices move with scope, materials and access — treat any quote wildly below market as a red flag, not a bargain.

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FAQ

How much do aircon gas top-up companies charge in Singapore? Gas top-ups run S$60–S$150 depending on refrigerant type and amount. Always compare 2–3 itemised quotes.

How do I choose a good company? Check real Google reviews and completed local projects, note the key requirement (Technicians must be certified to handle refrigerants), and get an itemised quote before committing.

Is this list up to date? The shortlist is from our 2023 editorial round and is being re-verified for 2026. For the current vetted list with live contact details, use the Homees contractor directory.

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Shortlist from Homees' 2023 editorial round, under re-verification for 2026. For the live, vetted directory with contact details, visit Homees contractors.