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Aircon Chemical Wash & Overhaul Singapore
Chemical wash from $82.80 and overhaul from $149.04 per unit. Transport included, 60-day warranty.
4.9Google RatingNo hidden fees
Upto 20% off on first booking!
60 days warranty
Transport Included
StringsSG Pte Ltd · UEN 201813375G
Chemical Wash Deals - 2026
Chemical Overhaul
Chemical Wash
⭐Verified Reviews
Trusted by Homeowners in Singapore
Real feedback from customers who booked aircon servicing through StringsSG
4.9from 136 Google reviewsFast and good servicing.
5.0
I
Iris Domingo
Fast and good servicing.
5.0
I
Iris Domingo
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
StringsSG Aircon Chemical Wash & Overhaul
Experiencing weak cooling, foul smells, or water leak from your AC? Get a professional aircon chemical wash to restore performance and improve air quality.
StringsSG offers affordable chemical wash and overhaul services in Singapore with instant quotes, same-day bookings, and emergency support.
Book online in minutes via our AI-powered platform. Enjoy fast, reliable service and 24/7 customer support.
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.
What is Chemical Wash?
Over time, air conditioning units collect dust, mold, and bacteria, reducing cooling efficiency. A chemical wash eliminates these contaminants and restores your unit's performance.
The Benefits:
- ✔️ Improves cooling efficiency
- ✔️ Removes bacteria, mold, and allergens
- ✔️ Prevents aircon leaks and water blockages
- ✔️ Increases energy efficiency and lowers bills
- ✔️ Extends the lifespan of your aircon unit
Recommended Frequency: Every 6–12 months for optimal performance.
What is Chemical Overhaul?
An aircon chemical overhaul is a comprehensive deep-cleaning service where the entire unit is dismantled and each part is individually treated with specialized chemical solutions. This process targets deep-seated dirt, internal mold, and stubborn blockages that affect long-term performance.
The Benefits:
- ✔️ Restores aircon performance by removing internal build-up
- ✔️ Eliminates foul smells caused by mold and bacteria
- ✔️ Reduces persistent water leakage and drainage blockages
- ✔️ Enhances cooling efficiency, especially in older units
- ✔️ Extends lifespan of heavily-used or neglected aircon systems
Recommended For: Older, heavily used units or systems showing signs of deep blockages, weak cooling, or foul smells.
Aircon Chemical Wash vs Chemical Overhaul
Many customers ask about the difference between these two services. Here's a quick comparison:
| Feature | Chemical Wash | Chemical Overhaul |
|---|---|---|
| Cleaning Intensity | Moderate | Deep Cleaning |
| Components Cleaned | Filters, Coils, Drain Pan | Entire Aircon Unit |
| Best For | Regular Maintenance | Severe Mold & Blockages |
| Dismantling | Partial | Complete |
Still unsure which is best for your home or office?
Compare: Chemical Wash vs Overhaul →Aircon Chemical Wash & Overhaul Price
In Singapore a professional aircon chemical wash typically costs $80 to $120 per unit, and a chemical overhaul around $140 to $170 per unit. At StringsSG our prices drop as you add units thanks to volume discounts. Both services carry a 60-day workmanship warranty.
| Units | Chemical Wash | Chemical Overhaul |
|---|---|---|
| 1 AC unit | SGD 82.80 | SGD 149.04 |
| 2 AC units | SGD 161.46 | SGD 290.63 |
| 3 AC units | SGD 221.49 | SGD 398.68 |
| 4 AC units | SGD 281.52 | SGD 506.74 |
| 5 AC units | SGD 341.55 | SGD 614.79 |
| 5+ units | Open request for pricing | |
For long-term performance and deeper cleaning, a chemical overhaul offers better value than a standard wash on older or heavily clogged units. See all aircon servicing prices.
8-Step Aircon Chemical Wash Process
Our 8-step chemical wash is ideal for deeply clogged or moldy aircon units — restoring full cooling performance and air quality.
1. Inspection & Preparation
Technician inspects the unit and covers nearby furniture and flooring to protect from spills or mess.
2. Disassembly
The aircon unit is powered off and disassembled, including removal of filters and front panels.
3. Chemical Application
Special cleaning agents are applied to evaporator coils, fan blades, and internal components to break down dirt and grime.
4. Washing The Components
Components are thoroughly washed under running water or a jet spray to remove loosened contaminants.
5. Vacuuming of Drainage Pipe
Drainage pipe is vacuumed from FCU or bathroom outlet to eliminate any potential clogs or blockages.
6. Reassembly & Testing
Unit is reassembled, filter is placed back, and the aircon is tested to ensure smooth and efficient performance.
7. Compressor Performance Checking
Condenser unit is checked for performance. Technicians may recommend additional cleaning if needed (extra charges apply).
8. Monitor Refrigerant Gas Level
Technicians check refrigerant gas level using a gauge. If gas is low, a top-up may be suggested (additional cost).
9-Step Aircon Chemical Overhaul Process
The chemical overhaul is a complete deep-cleaning process — ideal for severely clogged or underperforming aircon units.
1. Inspection & Preparation
Technician inspects the unit and covers surrounding furniture and flooring to prevent mess from the cleaning process.
2. Dismantle The Aircon Unit
The entire aircon unit is taken off the wall and disassembled into separate components for deep cleaning.
3. Chemical Application
A strong cleaning solution is applied to all key components including evaporator coils and fan blades to break down heavy buildup.
4. Washing The Components
Each disassembled part is washed thoroughly using running water or a jet spray to remove loosened contaminants.
5. Lubrication of Fan Bearings
Fan bearings are lubricated if required, to ensure smooth and quiet operation after the overhaul.
6. Vacuuming of Drainage Pipe
Drainage pipe is vacuumed to eliminate any clogs and ensure water flows out properly during operation.
7. Reassembly & Testing
Technician reassembles the cleaned aircon unit, reinstalls filters, and performs a full operational test.
8. Compressor Performance Checking
The outdoor compressor unit is checked for performance. Extra cleaning or servicing may be advised at an additional cost.
9. Monitor Refrigerant Gas Level
Refrigerant gas levels are checked using a gauge. Technician will inform you if a refill is needed (chargeable).
Learn More About Chemical Wash
Things to Know Before Booking Chemical Cleaning
- Higher cost than standard servicing
- Takes longer — full disassembly and detailed cleaning
- Risk of damage if chemicals are used incorrectly
- Requires PPE — exposure may irritate skin or lungs
Our technicians are trained to handle these risks safely, which is why we recommend professional servicing over DIY chemical cleaning.
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, StringsSG Standards
Every technician 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 $16 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.
Aircon Chemical Wash & Overhaul FAQs
An aircon chemical wash involves disassembling key components of your aircon unit and cleaning them using chemical solutions to remove dirt, mould, and blockages. It’s recommended when your aircon is leaking, not cooling effectively, or releasing a foul smell. This helps restore optimal airflow and efficiency, especially in Singapore’s humid climate.
A chemical wash is a light-to-moderate deep cleaning of accessible parts like filters, evaporator coils, and drainage pipes. A chemical overhaul is more intensive, involving full dismantling of the unit for a deep clean of internal components like fan coils and heat exchangers. Overhauls are ideal for aircons with severe issues like persistent leaks or poor cooling.
For most homes in Singapore, a chemical wash every 6 to 12 months is sufficient, depending on usage. A chemical overhaul may be needed once every 1 to 2 years for older units or those experiencing performance issues. Regular aircon servicing helps prolong the unit’s lifespan and maintain energy efficiency.
A typical chemical overhaul service takes about 2 to 3 hours per unit. The process includes dismantling, deep cleaning with chemicals, drying, reassembling, and testing the unit to ensure it operates optimally after service.
Yes, we offer a 60-day service warranty. If you face cooling issues or leaks within this period, contact us StringsSG support.
For most homes in Singapore, a chemical wash every 6 to 12 months is sufficient, depending on usage. A chemical overhaul may be needed once every 1 to 2 years for older units or those experiencing performance issues. Regular aircon servicing helps prolong the unit’s lifespan and maintain energy efficiency.
Yes, chemical cleaning can resolve water leakage problems caused by clogged drainage systems, dirty coils, and mould build-up. By thoroughly cleaning these parts, the airflow is restored, and blockages that lead to leaks are removed, which is especially important for aircons in Singapore’s humid environment.
Yes, professional aircon technicians are trained to perform chemical washes safely on all major brands including Daikin, Mitsubishi, Panasonic, LG, and Midea. Always ensure that your service provider uses non-corrosive, eco-friendly chemicals and follows proper dismantling procedures.
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.
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