Residential・Commercial AC cleaning・Repairs・Installation

Cleaner Air Conditioning
Comfort You Can Feel

From inspection, dismantling and cleaning to clearing the drain pipe, we handle air conditioning needs for homes, offices and shops. Clear pricing—understand the situation first, then arrange the right service

clear, published pricesTransparent cleaning charges
Deep treatmentDismantle and clean parts and drain pipe
Residential・CommercialWindow, split-type and commercial
Enquire first, then get a quotationRepair and installation subject to actual situation
Clear pricing

Take a close look first
Book with confidence again

Residential window and split-type unit cleaning is subject to the current price list on this website. The total charge for the listed number of units is shown below; the average price of HK$450 per unit applies only to the 15-unit discount and is not a single-unit price.

View full services and charges

Residential AC cleaning | window units and split-type unitsCharges (HK$)

1 unit$880Per unit $880
2 unit$1,400Average per unit $700
15 unit$6,750Average per unit $450

The multi-unit offer requires the same estate / nearby estates and service on the same day; cross-household group purchases are quoted separately and do not directly apply the residential multi-unit price.

Cleaning includes a full inspection, deep cleaning with a pressure washer, and clearing the drain pipe, but excludes the outdoor condenser.

Other models, additional work, repairs and installation are quoted separately, and any extra charges will be confirmed first.

Please confirm the scope covered by the 90-day maintenance with customer service before booking.

AC brands

Suitable for air conditioners of all major brands

The following common brands are covered; for specific models and service scope, please send photos first for enquiry

  • Mitsubishi Electric Logo
  • Hitachi Logo
  • Daikin Logo
  • Panasonic Logo
  • Carrier Logo
  • Midea Logo
  • York Logo
  • Gree Logo
  • General Logo
  • Rasonic Logo
CLEANING IN ACTION

See the cleaning process

Cleaning for residential window and split-type units will be arranged according to the unit type and site conditions. The main steps include:

  • Check unit condition
  • Dismantle and clean parts
  • High-pressure cleaning
  • Clear the drain pipe

Residential cleaning does not include the outdoor condenser; the exact scope of service is confirmed according to the unit type and site conditions

View the 9 major service process

From pre-cleaning inspection and waterproof protection to post-cleaning acceptance, below are our 9 major service steps. Dismantling and cleaning details will be arranged according to the model and site conditions.

  1. Pre-cleaning inspection and testing

    Before cleaning the AC, inspect the unit and carry out a test.

  2. Peripheral waterproof protection

    Before cleaning, waterproof the area around the AC unit.

  3. Remove and clean parts

    Use professional tools to remove the fan blade, dust filter, and front cover.

  4. Thorough cleaning of removed parts

    Thoroughly clean the removed fan blade, dust filter and cover.

  5. Cleaning the refrigerant copper pipes

    Spray a high-concentration cleaning agent onto the air conditioner to clean the refrigerant copper pipes.

  6. High-pressure drain outlet cleaning

    Use a high-pressure water spray to clean the air conditioner drain outlet for the best cleaning result.

  7. Wipe dry and reinstall

    After cleaning, wipe dry the AC components and reinstall them.

  8. Clean up the site

    After cleaning the air conditioner, the site will be tidied up.

  9. Customer inspection and testing

    Notify the customer to inspect the air conditioner and carry out testing.

Learn about the home cleaning process and differences by model
REAL SERVICE CASES

Real service cases

All service cases
In their words

See what customers say, directly

Customer WhatsApp message excerpt, sharing cleaning details and service experience. Tap the image to open the original and zoom in

Our partners

Partners

  • HSBC Bank Logo
  • Hang Seng Bank Logo
  • Caritas Hong Kong Logo
  • Hong Kong Red Cross Training Centre Logo
  • Matsumoto Kiyoshi Logo
  • Eye Level Logo
  • Saizeriya Logo
  • The Mental Health Association of Hong Kong Logo
  • PORTS Logo
  • The Hong Kong Sheng Kung Hui Welfare Council Logo
A clear next step

Start with one photo
No need to guess

Want to know which service is suitable? Take photos of the AC model, quantity and problem locations, and send them to us via WhatsApp for a first review

01

Photo and description

Take photos of the AC exterior, unit location, and any water leakage or odour issues

02

Learn more · Quote

Customer service will make a preliminary assessment based on the information you provide; cleaning, repair and installation are handled separately

03

Arrange · On-site

After confirming the service details, we will arrange a time. Please ask before booking about the cleaning scope and maintenance details

AFTERCARE

What happens after cleaning?

Confirm the quotation first

Residential window and split-type unit cleaning is priced according to the published price list and number of units; for repairs, installation, or additional work, we will first assess from photos, then quote based on the unit type and site conditions. If any new work or charges are required, they will be confirmed before proceeding.

90-day Cleaning Maintenance

The cleaning service includes a 90-day warranty, covering issues caused by the cleaning service. If there is dripping or leakage after cleaning, please provide your booking details and the issue to customer service for follow-up. Whether it is applicable and how it will be handled depends on verification of the cause and the terms confirmed at booking. Not all dripping or leakage cases are guaranteed free repair.

Check the quotation and maintenance scope before booking
COMMON QUESTIONS

AC cleaning FAQ

Price, cleaning scope, maintenance and group-buy arrangements: understand them before booking

How much is home AC cleaning? What are the conditions for "from HK$450 per unit"?

For home window and split AC cleaning, please refer to the current price list on this website. For example, 1 unit(s) for HK$880, 2 unit(s) total HK$1,400, 10 unit(s) total HK$5,300. "From HK$450 per unit" applies only to the 15-unit promotion, total HK$6,750, and is not a single-unit charge. Multi-unit discounts require the same housing estate or nearby estates and service on the same day; cross-household group bookings are quoted separately and do not directly use the home multi-unit rate. Additional services and other work are quoted separately and will be confirmed before booking.

View residential AC cleaning prices

What does AC cleaning include? Does it include the outdoor condenser?

Home window and split AC cleaning includes a full inspection, deep cleaning with a high-pressure water jet, and drain pipe clearing. The outdoor condenser is not included. The exact scope depends on the model and site conditions; if you need cleaning for the outdoor condenser or other extra work, please ask about feasibility and charges before booking.

Learn about home cleaning scope and extra services

How long does it take to clean one window or split AC?

For a typical home window or split AC, cleaning usually takes about 45 to 60 minutes. Actual time depends on the level of dirt, installation location and unit condition; if the unit is harder to access or several units are cleaned at once, please provide photos and the number of units before booking so we can confirm the schedule.

Read cleaning and booking FAQs

If the AC is leaking water or not cooling enough, should I clean it first or have it checked for repair?

First, identify the cause before deciding between cleaning or repair. If the problem is caused by dust buildup inside the unit or a blocked drain pipe, cleaning may help. If refrigerant is leaking or parts are damaged, repair may be needed. Please provide the model, problem details, and photos or video first; water leakage or insufficient cooling alone does not guarantee that cleaning will solve the issue.

Learn about AC fault inspection and repair

What is included in 90 days of AC cleaning maintenance? How is water leakage followed up after cleaning?

The cleaning service includes a 90-day warranty, covering issues caused by the cleaning service. If there is dripping or leakage after cleaning, please provide your booking details and the issue to customer service for follow-up. Whether it is applicable and how it will be handled depends on verification of the cause and the terms confirmed at booking. Not all dripping or leakage cases are guaranteed free repair.

Read cleaning, maintenance and aftercare FAQs

Can residents of the same estate / nearby estates join together for group AC cleaning?

Yes. OPOExpert Air Conditioning's group cleaning for split and window AC units starts from 25 units in total, at a low of HK$350 per unit. Service must be arranged for the same estate or nearby estates, on the same day; large units and additional services are quoted separately. The actual fee must be confirmed by customer service, and not all group bookings are charged at HK$350 per unit. Cross-household bookings do not directly use the home multi-unit rate.

View group-buy prices, eligibility and enquiries
SERVICE ENQUIRIES

AC cleaning, repair or installation?

Select the service you need, then WhatsApp us for pricing and arrangements

Not sure of the model? You can WhatsApp us a photo.