Aircon Chemical Wash Prices in Singapore: 9 Companies Compared
Guide · Published 14 October 2026
Reviewed and approved by a NearbyWise editor before publishing. Every fact is checked against the business's own website. How we check
A chemical wash goes further than routine servicing: chemical cleaning solutions are used on the cooling coil, drain and other parts where dirt, mould and grime build up, which can affect cooling and airflow. It is usually booked when a general service no longer seems enough. This guide sets out what nine Singapore companies state they charge for a chemical wash, per unit and, where they publish it, for several units. Prices can differ by unit size and by number of units. Many prices are 'from' figures, so confirm the final quote before booking. Companies are listed in the order ranked by our method.
1. Aircon Servicing & Repair Singapore
Aircon Servicing & Repair Singapore lists its chemical wash from $80 per unit. It describes the chemical wash as a deeper clean that includes a full general service. Its price list adds $30 per unit for 24,000 BTU single-split units. A chemical overhaul is listed from $130 per unit. The company states it covers all of Singapore.
| Stated price | Chemical wash from $80 per unit |
| Stated price | $80 for chemical wash per unit |
| Warranty | 30/60-days labour warranty on aircon repair |
| Response time | Same-day appointments available, usually within hours of message |
| Brands serviced | Daikin, Mitsubishi, Panasonic, Midea, Hitachi, Toshiba |
| How to book | WhatsApp or phone call |
- Service area: All of Singapore; Every neighborhood in Singapore
- Hours: Mon–Sun 7:00 AM – 11:00 PM (from Google)
- Phone: +65 9855 3721
- Website: aircon-service.com.sg
More about Aircon Servicing & Repair Singapore
2. Cool Channels Engineering Pte Ltd
Cool Channels Engineering lists a fan coil chemical wash overhaul from $150 per unit for 9-12 Btu units and from $180 per unit for 18-24 Btu units. It also offers a chemical wash described as targeted cleaning of accessible aircon components. It states a 90-day warranty for water leakage arising from the serviced unit. Stated hours are Monday to Saturday 8:30am to 10pm and Sunday 8:30am to 5pm.
| Stated price | 9-12 Btu Fan Coil Chemical Wash Overhaul From $150/unit |
| Stated price | 18-24 Btu Fan Coil Chemical Wash Overhaul From $180/unit |
| Warranty | Workmanship support for completed servicing, repair, and installation works; technicians will assess and assist if issues related to the serviced area recur shortly after the visit |
| Response time | 1 to 3 hours per unit depending on size and complexity |
| Brands serviced | Daikin, Mitsubishi Electric, Panasonic, Samsung, LG, Fujitsu, Toshiba, Hitachi, Midea |
- Service area: Singapore including HDB flats, condominiums, offices, and commercial spaces across the island; Singapore (islandwide)
- Hours: Available 7 days a week; Monday to Saturday 8:30am to 10pm, Sunday 8:30am to 5pm
- Phone: 6258 8400 (from Google)
- Website: coolchannels.com.sg
More about Cool Channels Engineering Pte Ltd
3. StringsSG Singapore
StringsSG Singapore states that its chemical wash starts at $82.80 and its chemical overhaul starts at $149.04. Its listed aircon services include evaporator coil cleaning, drain pan or tray cleaning and drainage pipe vacuuming. It states it works island-wide in Singapore, including HDB flats, BTO and resale units, condominiums and commercial premises.
| Stated price | Chemical wash starts at $82.80, chemical overhaul starts at $149.04 |
| Warranty | 30 days warranty on general servicing and repair, 60 days on chemical wash and chemical overhaul and drainage work, 90 days on refrigerant gas top-up |
| Response time | Same-day and emergency servicing available, 8am to 10pm daily |
| Brands serviced | Daikin, Mitsubishi Electric, Mitsubishi Heavy Industries, Panasonic, Midea, LG, Samsung, Fujitsu, Hitachi, Toshiba, York, Haier, Gree, Prism+ |
| How to book | Web or mobile app |
- Service area: Island-wide Singapore including HDB flats, BTO and resale units, condominiums and commercial premises
- Hours: 8am to 10pm daily, including weekends
- Phone: +65 9351 2695
- Website: stringssg.com
More about StringsSG Singapore
4. Letscool Aircon and Services
Letscool Aircon and Services lists an aircon chemical wash from $60 per unit. Its chemical overhaul is listed from $90 per unit. For comparison, a general aircon service is $30 for a single unit or $25 per unit for 2 or more units. It states a workmanship warranty on chemical overhaul services. Its stated service area is Singapore.
| Stated price | Aircon chemical wash from $60 per unit |
| Stated price | Per unit $90 (prices vary depending on BTU) |
| Warranty | Service warranty provided covering workmanship-related issues |
| Response time | 24/7 call available, aims to arrange technician as quickly as possible |
| Brands serviced | All major brands including Mitsubishi Electric, Daikin, Panasonic, Midea, Toshiba, LG, Fujitsu, Haier, York, Hitachi, Gree, Mitsubishi Heavy Industries |
| How to book | Call or WhatsApp at 9862 3678 |
- Service area: Singapore
- Hours: Mon–Sun Open 24 hours (from Google)
- Phone: 9862 3678
- Website: letscoolaircon.com.sg
More about Letscool Aircon and Services
5. TJ Aircon Engineering
TJ Aircon Engineering prices a chemical wash at $80 for a single unit and $60 per unit for 2 units and above. Its chemical overhaul is $150 for one unit and $130 per unit for 2 units and above. It states it serves all over Singapore within the same day. A yearly contract for aircon maintenance is also offered.
| Stated price | Chemical Wash: $80 per unit (1 unit) |
| Stated price | Chemical Wash: $60 per unit (2 units and above) |
| Warranty | Best quality workmanship with warranty |
| Brands serviced | All brands of air-conditioning units |
| How to book | Phone call for free quotation |
- Service area: All over Singapore within the same day
- Hours: Mon–Sun 9:00 AM – 6:00 PM (from Google)
- Phone: +65 9478 2638
- Website: tjaircon.com.sg
More about TJ Aircon Engineering
6. Coolcare Aircon Service
Coolcare Aircon Service lists its chemical wash at $60 for one unit, $120 for two, $180 for three and $240 for four. Its chemical overhaul runs from $90 for one unit to $360 for four. It states a 90-day workmanship warranty for chemical overhaul service. It also lists a compressor chemical wash. Bookings are taken by online form, WhatsApp or phone call.
| Stated price | General Service: Unit 1 $30 + Transport, Unit 2 $50, Unit 3 $75, Unit 4 $100; Steam Cleaning: Unit 1 $40, Unit 2 $80, Unit 3 $120, Unit 4 $160; Chemical Wash: Unit 1 $60, Unit 2 $120, Unit 3 $180, Unit 4 $240; Chemical Overhaul: Unit 1 $90, Unit 2 $180, Unit 3 $270, Unit 4 $360 |
| Stated price | $30 + Transport |
| Warranty | 30 to 90 days workmanship warranty for services; 2 years workmanship warranty for installation |
| How to book | Online form, WhatsApp, or phone call |
- Service area: All locations in Singapore; HDB/BTO, commercial, condominium, landed properties
- Hours: Mon–Sun Open 24 hours (from Google)
- Phone: 9023 5452 (from Google)
- Website: coolcare.com.sg
More about Coolcare Aircon Service
7. All Best Air-Conditioning & Electric Pte Ltd
All Best Air-Conditioning & Electric prices a chemical wash per fan coil unit up to 16K BTU/Hr at S$120 non-contract or S$110 on contract. Above 16K BTU/Hr it lists S$180 and above non-contract, or S$160 and above on contract. A condensing unit chemical wash is S$120 non-contract without system shutdown and removal, or S$280 with it. It describes the service as for heat exchanger fins with excessive dirt build-up.
| Stated price | Chemical wash per fan coil unit up to 16K BTU/Hr: Non-Contract S$120, Contract S$110 |
| Stated price | Chemical wash per fan coil unit above 16K BTU/Hr: Non-Contract S$180 and above, Contract S$160 and above |
| Warranty | One month coverage for problems related to general servicing |
| Brands serviced | all major brands of air-conditioners |
- Service area: Residential, commercial and industrial projects
- Hours: Mon–Fri 9:00 AM – 5:00 PM; Sat 9:00 AM – 12:00 PM; Sun Closed (from Google)
- Phone: 6259 6266 (from Google)
- Website: allbestaircon.com
More about All Best Air-Conditioning & Electric Pte Ltd
8. Cool Aircon
Cool Aircon lists its chemical wash from $110. It describes this as a chemical wash of the cooling coil and drain without taking the unit down. Its chemical overhaul involves taking the indoor unit apart and cleaning every part separately. One-time general servicing is listed at $55 for one unit and $120 for six units. It states island-wide coverage across Singapore.
| Stated price | From $110 (chemical wash) |
| Stated price | Bi-annual package 2 visits/year for 4 units: $175/year |
| Response time | Reply to WhatsApp and call enquiries within 2-4 hours |
| Brands serviced | Daikin, Mitsubishi, Panasonic, LG and more |
| How to book | WhatsApp or phone call |
- Service area: Island-wide coverage across Singapore
- Hours: 8am to 10pm daily including weekends and public holidays; 8am to 10pm daily, 7 days a week
- Phone: 9778 8986 (from Google)
- Website: coolaircon.sg
9. 2cool Air Conditioning Pte Ltd
2cool Air Conditioning lists its chemical wash from $80 per unit. A chemical overhaul is listed from $150 per unit. Its gas top-up prices start from $60 for R22 and from $80 for R410A. It also lists water leak repair from $60. The company states it works across Singapore.
| Stated price | Chemical Wash from $80 per unit |
| Stated price | Chemical Overhaul from $150 per unit |
| Response time | Same-day service available |
| Brands serviced | All brands and models |
- Service area: Across Singapore
- Hours: Mon – Sun: 8am – 9pm, including public holidays with no surcharge
- Phone: 9643 9405 (from Google)
- Website: 2coolairconditioning.netlify.app
More about 2cool Air Conditioning Pte Ltd
Frequently asked questions
What is an aircon chemical wash for?
A chemical wash uses cleaning solutions to remove dirt, grime and mould from the cooling coil and drain that a routine service may not clear. It is often booked when a unit is cooling poorly, smelling musty or leaking water despite regular servicing.
How is a chemical wash different from a chemical overhaul?
Cool Aircon describes its chemical wash as cleaning the cooling coil and drain without taking the unit down. It describes its chemical overhaul as taking the indoor unit apart and cleaning every part separately.
Is a chemical wash cheaper per unit if I have several aircons?
TJ Aircon Engineering charges $80 for one unit and $60 per unit for 2 units and above. Coolcare Aircon Service lists $60 for one unit and $240 for four.
Does the size of the aircon affect the chemical wash price?
All Best Air-Conditioning & Electric charges S$120 non-contract per fan coil unit up to 16K BTU/Hr and S$180 and above for larger units. Aircon Servicing & Repair Singapore adds $30 per unit for 24,000 BTU single-split units.
How we chose these companies
We ranked every aircon servicing business in our database that states the relevant service on its own website. The ranking combines the business's Google rating, adjusted for how many reviews it has, how many of the facts this guide needs the business publishes, and how recently we checked them. Every price, warranty and service listed here comes from the business's own website. NearbyWise has not used these services, and no business paid to be included. Prices change, so confirm with the company before you book. How we rank · Report a correction
Facts last checked against each company's website on 7 October 2026.