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Aircon Servicing Singapore
From $16/unit. Certified technicians island-wide.
4.9Google RatingNo hidden fees
Upto 20% off on first booking!
30 days warranty
Transport Included
StringsSG Pte Ltd · UEN 201813375G
Affordable Aircon Servicing Prices in Singapore
Transport included in every price
StringsSG offers affordable, certified aircon servicing and repair without compromising on service quality. Services include aircon cleaning and maintenance, chemical wash and chemical overhaul, aircon repair, compressor cleaning and refrigerant gas top up for HDB flats, BTO and resale units, condominiums and commercial premises.
Aircon servicing in Singapore is usually quoted per unit, with a separate transport or callout fee added on top. Our prices already include transport, so the figure you see is the figure you pay. The last column shows what each unit works out to once transport is set aside.
| Units | You pay | Transport | Per unit |
|---|---|---|---|
| 1 unit | $47.84 | Included | $27.84 |
| 2 units | $57.41 | Included | $18.70 |
| 3 units | $73.46 | Included | $17.82 |
| 4 units | $89.85 | Included | $17.46 |
| 5 units | $100.97 | Included | $16.19Best rate |
| 6 units | $117.48 | Included | $16.25 |
Prices are for wall-mounted units and include transport island-wide. Ceiling cassette units are priced separately. First-time customers save up to 20% — the discounted total is shown before you confirm. See the full aircon servicing price guide.
Aircon Service Deals — 2026
Book Aircon Repair
General Service
Chemical Overhaul
Chemical Wash
Gas Refill
Compressor Cleaning
Compressor Chemical Wash
⭐Verified Reviews
Trusted by Homeowners in Singapore
Real feedback from customers who booked aircon servicing through StringsSG
4.9
Punctual On task Yet to see if air conditioners are working as expected
4.0
L
Lee C K
Thanks Rocky. Well done.
5.0
M
Mon
Yours workers had done a good job
5.0
S
Sandy Ang
Awlad & Raju is very experience and efficient. they are also very polite, respectful and responible. they will ask consent for any things they may need to do. provided great service and recommendations that help with my work required. cle...
5.0
j
jeanne foo
Came on time and was really professional
5.0
S
Samuel Loh
Excellent service. Very detailed information on what is to be done and will be done before and during the work.
5.0
R
Roxanne
How to Book Aircon Service
2. Online Payment
Pay securely via PayNow, GrabPay, credit/debit card, and more — all from your StringsSG account.
3. Team Assignment
We assign a qualified team for your job. Chat directly with your technician through the app.
4. Service
Our technician arrives on your selected date and time to complete the servicing or repair.
6-Step Aircon Servicing Process
At StringsSG, we follow a proven 6-step approach to general aircon servicing in Singapore — ensuring your unit runs efficiently and reliably.
1. Air Filter & Front Panel/Cover Cleaning
Dirty air filters can block airflow and strain the aircon. Technicians clean or jet-wash filters to restore optimal airflow.
2. Cleaning of Evaporator Coil
The evaporator coil can collect dirt, reducing efficiency. The technician cleans it using a soft brush or vacuum.
3. Drain Pan or Tray Cleaning
Clogged drain pans may lead to leaks. Technicians clean out debris from the pan to ensure proper drainage.
4. Vacuuming of Drainage Pipe
To prevent water backup, the drainage pipe is vacuumed to remove blockages that may disrupt water flow.
5. Outdoor Condenser Check
Technicians assess the outdoor unit’s performance and recommend cleaning if necessary, based on inspection or customer request (extra charges may apply).
6. Monitor Refrigerant Gas Level
Technicians check the refrigerant gas level if poor cooling is observed or upon client request, and may recommend top-up if needed.
Watch the Step-by-Step Servicing Video
Our Services
From routine maintenance to emergency repairs — we cover every aircon need.
Which Aircon Service Do You Actually Need?
You do not need to diagnose the fault yourself. Start with what you are noticing, and we will point you to the right aircon service in Singapore — along with the likely cause, so you know why it is being recommended.
Nothing is wrong, the units are just due for upkeep
Filters, cover, evaporator coil and drain pan are cleaned, the drainage pipe is vacuumed and gas pressure is checked.
General ServiceWeak airflow or a musty smell even after a normal service
Dirt has bonded to the evaporator coil. A surface clean will not shift it, so the coil needs chemical treatment.
Chemical WashStill cooling poorly after a recent service, or unit unused for months
The fan coil unit comes off the wall so the blower wheel, coil and full drainage line can be cleared.
Chemical OverhaulWater dripping or leaking from the indoor unit
Almost always a choked drain line or dirty filters, not a refrigerant problem. Flushing the drainage usually fixes it.
Repair — drainageWater pooling or a gurgling sound from the drain line
Sludge and algae build up inside the drainage pipe over time. Flushing it clears the blockage at source.
Drainage pipe serviceBlowing air but it is not cold
The cause could be low refrigerant, a dirty coil, a failing capacitor or the PCB. We check before quoting any parts.
Book a diagnostic firstRattling, buzzing or grinding noises
Usually the blower, indoor fan motor or a loose compressor mounting rather than the refrigerant circuit.
Repair — mechanicalUnit runs hot or shuts off after a while
Clogged filters and coils trap heat, so the unit cuts out on thermal protection after long run hours.
Overheating checkOutdoor unit runs hot, is noisy or trips the breaker
A condenser cannot reject heat when its fins are blocked, which makes the compressor overwork and trip.
Compressor CleaningUnit will not power on or ignores the remote
The PCB drives the fan coil and compressor. When it fails the system will not respond at all.
PCB ReplacementA technician has already confirmed the refrigerant is low
Refrigerant does not get consumed, so we locate the leak first. Refilling without fixing the leak wastes your money.
Gas Top-Up
| What you are noticing | Service to book | Likely cause |
|---|---|---|
| Nothing is wrong, the units are just due for upkeep | General Service | Filters, cover, evaporator coil and drain pan are cleaned, the drainage pipe is vacuumed and gas pressure is checked. |
| Weak airflow or a musty smell even after a normal service | Chemical Wash | Dirt has bonded to the evaporator coil. A surface clean will not shift it, so the coil needs chemical treatment. |
| Still cooling poorly after a recent service, or unit unused for months | Chemical Overhaul | The fan coil unit comes off the wall so the blower wheel, coil and full drainage line can be cleared. |
| Water dripping or leaking from the indoor unit | Repair — drainage | Almost always a choked drain line or dirty filters, not a refrigerant problem. Flushing the drainage usually fixes it. |
| Water pooling or a gurgling sound from the drain line | Drainage pipe service | Sludge and algae build up inside the drainage pipe over time. Flushing it clears the blockage at source. |
| Blowing air but it is not cold | Book a diagnostic first | The cause could be low refrigerant, a dirty coil, a failing capacitor or the PCB. We check before quoting any parts. |
| Rattling, buzzing or grinding noises | Repair — mechanical | Usually the blower, indoor fan motor or a loose compressor mounting rather than the refrigerant circuit. |
| Unit runs hot or shuts off after a while | Overheating check | Clogged filters and coils trap heat, so the unit cuts out on thermal protection after long run hours. |
| Outdoor unit runs hot, is noisy or trips the breaker | Compressor Cleaning | A condenser cannot reject heat when its fins are blocked, which makes the compressor overwork and trip. |
| Unit will not power on or ignores the remote | PCB Replacement | The PCB drives the fan coil and compressor. When it fails the system will not respond at all. |
| A technician has already confirmed the refrigerant is low | Gas Top-Up | Refrigerant does not get consumed, so we locate the leak first. Refilling without fixing the leak wastes your money. |
Still unsure? Book a general service. Our technician will tell you on site whether a chemical wash is actually needed — we do not add it by default.
Why Choose StringsSG for Aircon Servicing
Transparent pricing, verified technicians, a 30-day warranty and 24/7 emergency support.
Instant, Transparent Quotes
See your exact total before you book, transport included. No callout fees, no charges added after the job.
Background-Verified Technicians
Every technician is identity checked, experience assessed and continuously rated by customers.
Cheaper The More Units You Book
Pricing drops as you add units — down to about $16 per unit at five units, transport included.
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.
Singapore Regulations on Air Conditioning Systems
Air conditioning in Singapore is governed by the National Environment Agency (NEA) and the Building and Construction Authority (BCA), including Air-Conditioning and Mechanical Ventilation (ACMV) requirements under the Building Control Act and the Environmental Public Health Act. These apply to both residential and commercial systems.
Aircon servicing should be carried out by trained technicians working for a properly registered contractor. StringsSG Pte Ltd is registered in Singapore under UEN 201813375G, and every technician on our platform is background-verified before taking jobs.
Aircon Servicing FAQs
General aircon servicing with StringsSG starts at $47.84 for 1 unit and $57.41 for 2 units, with transport already included in the price. Because most providers add a $20 transport charge on top of their quote, our effective rate works out to about $18.70 per unit for 2 units and around $16 per unit for 5 units. Chemical wash starts at $82.80 and chemical overhaul at $149.04. New customers get up to 20% off their first booking.
No. Every price shown on our website and app is the final all-in amount, with transport included and no minimum booking fee. Your exact total is displayed before you confirm the booking, and no charges are added after the job is completed.
The National Environment Agency recommends servicing residential aircon units at least once every 3 months, while the Building and Construction Authority recommends at least once a year. In Singapore's humid climate we suggest a general service every 3 to 4 months for normal home use, and more frequently if you have pets, run the unit daily or live near a main road.
A general aircon service covers six steps per unit: cleaning the air filters and front cover, cleaning the evaporator coil, clearing the drain pan, vacuuming the drainage pipe, checking the outdoor condenser performance, and verifying refrigerant gas pressure for cooling efficiency. The technician will also tell you if any deeper cleaning is genuinely needed, at additional cost.
A chemical wash treats the evaporator coil and water tray with a chemical solution after partial dismantling, and is right when airflow is weak or there is a musty smell. A chemical overhaul is more intensive: the fan coil unit is dismantled off the wall so the blower wheel, coils and full drainage line can be cleaned, then reassembled and tested. Choose an overhaul if cooling is still poor after a recent service or the unit has been unused for months.
Yes. StringsSG services wall-mounted and ceiling cassette aircon units in HDB flats, BTO and resale units, condominiums, landed property and commercial premises across Singapore. Our technicians follow proper safety and cleanliness procedures for every property type.
A general service takes roughly 20 to 30 minutes per unit. A chemical wash takes about 45 to 60 minutes per unit, and a chemical overhaul takes about 2 to 3 hours per unit because the fan coil unit has to be dismantled, cleaned, dried and reassembled before testing.
Yes. We accept emergency and same-day aircon service requests subject to technician availability in your area. Mark the urgency when you submit the request, or message us on WhatsApp at +65 9351 2695 and we will try to arrange a technician on the same day.
Our technicians are trained to service and repair all major brands sold in Singapore, including Daikin, Mitsubishi Electric, Mitsubishi Heavy Industries, Panasonic, Midea, LG, Samsung, Fujitsu, Hitachi, Toshiba, York, Haier, Gree and Prism+, for both residential and commercial systems.
Yes. StringsSG provides a 30-day workmanship warranty on general servicing and a 60-day warranty on chemical wash and chemical overhaul. If the same issue recurs within the warranty period, contact us through the app or WhatsApp and we will send a technician back.
You can choose to pay with the many options available like, PayNow, Mastercard, Visa, American Express, GrabPay and many more.
Once your service is completed, you can view and download your receipt from the 'Orders' section in the StringsSG app.
We offer a 30-day warranty for general servicing and 60 days for chemical cleaning. If something's wrong, contact us through the app during the warranty period.
Log in to your StringsSG account, go to 'Orders' and click the Date/Time and propose a reschedule. New time slots are subject to availability.
Technicians are assigned a 2-hour arrival window. If there's a delay, reach out via the in-app chat or call function to get real-time updates.
