Aircon Gas Top-Up Singapore

Top-Up Your Aircon Gas Efficiently with StringsSG

4.9Google RatingNo hidden fees

Upto 20% off on first booking!

60 days warranty

Transport Included

StringsSG Pte Ltd · UEN 201813375G

StringsSG Aircon Gas Top-Up Singapore

By StringsSG – Trusted Local Home Service Partner

Vetted technicians from licensed, ACRA-registered contractors

Air conditioning systems require refrigerant gases like R22, R410A, or R32 to function effectively. Low gas levels cause poor cooling, compressor strain, and higher electricity bills. At StringsSG, our experienced and BCA-certified technicians use calibrated gauges to diagnose refrigerant issues accurately and perform top-ups in a safe, eco-friendly manner.

Low gas almost always means a leak somewhere in the system, because refrigerant runs in a sealed loop and is not used up. So the technician checks the pressure and looks for the leak before topping up; a top-up on its own only buys time.

If you're on a maintenance package, refrigerant level checks are included in every visit. Refills are charged separately based on gas type and quantity, with transparent pricing displayed before service begins.

Expert Tip: A healthy refrigerant level not only improves cooling but also extends your aircon's lifespan. Schedule a check at least once a year for the best performance.

StringsSG technician performing gas top-up

Gas Top-Up Pricing

StringsSG prices per unit, transport included. A half tank tops up a unit that is slightly low; a full tank refills one that has lost most of its gas, usually after a leak repair.

Gas Type	Price (SGD)
R410A	$106.72 half tank / $147.20 full tank
R32	$147.20 half tank / $193.20 full tank
R22	$73.60 half tank / $101.20 full tank

Signs Your Aircon Needs Gas Top-Up

🌬️Weak cooling – Air isn’t as cold as before.
⏱️Longer cycles – Takes longer to cool the room.
🔄Compressor never stops – Constant or irregular operation.
❄️Ice buildup – Frost on coils or copper pipes.
💨Hissing sounds – Could indicate a refrigerant leak.
⚡High electricity bills – Caused by poor cooling efficiency.

If you notice any of these signs, don’t delay. StringsSG’s certified technicians can inspect, diagnose, and safely refill your aircon gas. Learn more about gas leakage.

Aircon Gas Top-Up FAQs

With StringsSG, per unit and with transport included: R22 is $73.60 for a half tank and $101.20 for a full tank, R410A $106.72 and $147.20, and R32 $147.20 and $193.20. A half tank suits a unit that is slightly low; a full tank refills one that has lost most of its gas, usually after a leak is repaired.

Check the rating label on the side of the outdoor condenser, or on the indoor unit; it names the refrigerant (R32, R410A or R22) and the factory charge. Most inverter units sold in recent years use R32, older inverters R410A, and units from the early 2000s or before R22.

In principle, never. Refrigerant runs in a sealed loop and is not used up, so an aircon that needs regular top-ups has a leak. The technician should check the pressure and look for the leak first; topping up without fixing it means paying again within months.

Yes. R22 is an older refrigerant that is being phased out internationally, so it is becoming scarcer, but units that use it can still be topped up. If an R22 unit keeps losing gas or is more than about ten years old, compare the cost of repeated top-ups with replacing it.

Yes. StringsSG gives a 90-day workmanship warranty on refrigerant gas top-up. If cooling drops again within that period, contact us through the app or WhatsApp and we will send a technician back.

Why Choose StringsSG for Aircon Servicing

Transparent pricing, verified technicians, a 30-day warranty and requests accepted 24/7.

Instant, Transparent Quotes
See your exact total before you book, transport included. No callout fees, no charges added after the job.
Vetted Technicians, Licensed Contractors
Every technician works for a licensed, ACRA-registered contractor, is identity checked, experience assessed and rated by customers, and follows the service steps StringsSG defines for every job.
Cheaper The More Units You Book
Pricing drops as you add units — about $17 per unit at five units before transport, and every quote already includes transport.
Same-Day & Emergency Servicing
Flag a booking as urgent and we prioritise it. Technicians available across Singapore, 8am to 10pm daily.
Chat Directly With Your Technician
Share photos, confirm access details and follow up after the visit — all kept on record for warranty claims.
Rewards, Referrals & Sign-Up Discounts
Loyalty points for NTUC FairPrice & Grab vouchers, referral rewards, and up to 20% off your first sign-up.

⭐Verified Reviews

Trusted by Homeowners in Singapore

Real feedback from customers who booked aircon servicing through StringsSG

4.9from 141 Google reviews

there was no nbr to call for emergency contact. missed the appointment.

4.0

mrs yue

Fast and good servicing.

5.0

Iris Domingo

Fast and good servicing.

5.0

Iris Domingo

Punctual On task Yet to see if air conditioners are working as expected

4.0

Lee C K

Thanks Rocky. Well done.

5.0

Mon

Yours workers had done a good job

5.0

Sandy Ang

Brands We Support

Our technicians are certified to service and repair all major aircon brands in Singapore.

Samsung

Prism+

Midea

Fujitsu

Panasonic

Mitsubishi

Daikin

Types of A/C Refrigerant Gas

R22 gas cylinders

1. R-22 (Chlorodifluoromethane)
Once widely used, R-22 is being phased out globally due to ozone depletion issues under the Montreal Protocol.
2. R-410A (Puron)
R-410A replaced R-22 in many systems. It's more environmentally friendly as it doesn’t deplete the ozone layer.
3. R-134a (1,1,1,2-Tetrafluoroethane)
Used in automotive and commercial systems, R-134a has no ozone depletion effect but contributes to global warming.
4. R-407C
Designed to replace R-22 in existing systems, R-407C is ozone-safe but still contributes to global warming.
5. R-32 (Difluoromethane)
Common in newer residential units, R-32 offers lower global warming potential compared to many HFCs.
6. R-290 (Propane) and R-600a (Isobutane)
Eco-friendly hydrocarbon refrigerants with very low global warming impact, used in small-capacity systems.

Refrigerant use and availability are changing due to evolving regulations and environmental concerns. Stay updated with newer, safer alternatives.