Aircon Chemical Wash and Chemical Overhaul Singapore

Aircon Chemical Wash

Aircon Chemical Wash in Singapore

Air conditioning units are essential for maintaining a comfortable indoor environment in Singapore's hot and humid climate. However, over time, air conditioning units can become clogged with dirt, dust, and other contaminants, reducing their efficiency and effectiveness. This is where aircon chemical wash comes in.

If your aircon is not cooling, smells bad or has got mold, get a chemical wash for your aircon.

What is Chemical Wash or Chemical Cleaning of Aircon?

Aircon chemical wash is the process of detailed cleaning or your aircon with the use of special chemical for deep cleansing. Over time, aircon units tend to accumulate dirt, dust, mold, and other contaminants, which can compromise their efficiency and affect indoor air quality. Chemical wash requires dismantling of the unit and cleaning the evaporator coil, condenser coil, and other components with chemicals that break down and remove the contaminants. Blockages and clogs are removed by flushing and cleaning the drain pans and drainage pipes. It is recommended to do an aircon chemical wash at least once a year for optimal cooling effect, air quality and lifespan of your aircon.

aircon bacteria

What is Aircon Chemical Overhaul?

Aircon chemical overhaul is a comprehensive and in-depth cleaning process that involves disassembling the air conditioning unit and cleaning each internal component thoroughly with specialized chemical solutions. When your aircon is not cooling well, is leaking water or the air smells bad, we recommend to carrying out an aircon overhaul.

We recommend Chemical Overhaul as it provides a more advanced and extensive cleaning technique if germs are your concern. However, it can also cost more than basic Chemical wash.

Chemical Wash Process

Here are the steps for aircon chemical cleaning

1. Inspection and Preparation

The technician will inspect the air conditioning unit to determine the extent of cleaning required. They will then prepare the area by covering the furniture and flooring to protect them from any potential mess.

2. Disassembly

The technician will turn off the aircon unit and begin disassembling it to gain access to the internal components that require cleaning. This usually involves removing the air filter, front panel, and other parts.

3. Chemical Application

The technician will apply a specialized cleaning solution to the evaporator and condenser coils, fan blades, and other internal components of the aircon unit. This solution is designed to break down and remove the dirt, dust, and other contaminants that have accumulated over time.

4. Drainage System Cleaning

The technician will also clean and flush the drainage system to ensure that it is free from clogs and blockages, which can lead to water leaks and other issues.

5. Outdoor Condenser Cleaning

The outdoor condenser unit is the primary supply of electricity and cooling to the indoor units. The technician will clean the condenser with brush and vacuum. A regular servicing of the condenser will ensure better durability of the condenser.

6. Monitor Refrigerant Gas Level

Refrigerant gas acts as the cooling agent for the aircon, if the gas level is too low or empty there may be no cooling effect. The technician will use a device to check the gas level and inform you if it needs a refill.

7. Reassembly and Testing

After the cleaning process is complete, the technician will reassemble the aircon unit, install a new air filter, and test its performance to ensure that it is running smoothly and efficiently.

Aircon chemical wash is a thorough and effective cleaning process that can help to improve the performance and lifespan of an air conditioning unit. It is recommended to have it done at least once a year to maintain optimal performance and indoor air quality.

Additional Process for Chemical OverHaul

These steps will be followed for Chemical Overhaul

1. Dismantle the entire unit

In a chemical overhaul, the technician will completely dismantle the entire unit from the wall and separate each component of the aircon.

2. Through Cleaning with Chemical

Each component of the aircon unit will be thoroughly cleaned with chemicals to ensure there is no leftover dirt or mold.

3. Lubrication of fan bearings

There may be a need to lubricate the bearings after a chemical overhaul.

4. Reinstallation of the Aircon unit

After the cleaning is complete, the technician with put back the components to their position and place back the unit on the wall.

Aircon Chemical Wash Price

As per our analytics research data, dated 9th January 2022, chemical wash for one aircon unit can cost between $75 to $100 in Singapore. While most Singapore residents pay an average cost of $86 for chemical wash of one aircon unit, at StringsSG you can get the cheapest aircon chemical wash. Our price becomes dramatically cheaper when you request chemical wash for more than one aircon unit, because of the attractive discounts. Here is what our price list looks like for chemical wash.

No. of AirconsCost
1 UnitSGD 77.40
2 UnitSGD 139.32
3 UnitSGD 189.63
4 UnitSGD 239.94
5 UnitSGD 290.25
more than 5Open request for pricing

Aircon Chemical Overhaul Price

Chemical overhaul for one aircon unit can cost between $120 to $140 in Singapore. StringsSG offers the cheapest chemical overhaul. Get attractive discounts when you request chemical overhaul for more than one aircon unit, because of the attractive discounts. Here is what our price list looks like for chemical wash.

No. of AirconsCost
1 UnitSGD 113.40
2 UnitSGD 204.12
3 UnitSGD 277.83
4 UnitSGD 351.54
5 UnitSGD 425.25
more than 5Open request for pricing

It is better to choose Chemical overhaul as it provides a better value for money for the reasons we highlighted above. Here is a complete price chart for Chemical wash and Chemical Overhaul.


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Illustration video on the steps involved in aircon chemical wash in Singapore

Advantage and Disadvantages of Chemical Cleaning

Aircon chemical servicing in Singapore has its advantages and disadvantages:


1. Thorough cleaning: Chemical servicing involves dismantling the aircon unit and cleaning each internal part with chemical solutions. This provides a much more thorough cleaning than regular maintenance servicing.

2. Improved cooling performance: After chemical servicing, your aircon unit will perform more efficiently and effectively, which translates to better cooling performance.

3. Longevity: Regular chemical servicing can help extend the lifespan of your aircon unit by preventing corrosion and other forms of damage.

4. Improved air quality: Chemical servicing removes bacteria, mold, and other pollutants from the aircon unit, resulting in cleaner and healthier air quality.


1. Cost: Chemical servicing is more expensive than regular maintenance servicing due to the additional steps involved and the expensive chemicals used.

2. Time-consuming: Chemical servicing is a more time-consuming process compared to regular maintenance servicing, as the technician needs to disassemble the unit and clean each component.

3. Risk of damage: The use of chemicals during the servicing process can potentially damage the aircon unit if not done correctly by a professional technician.

4. Health risks: Chemicals used in the aircon chemical servicing process can pose health risks if inhaled or come in contact with the skin, making it important to ensure proper safety measures are in place during the process.

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