OPOExpert Air Conditioning
← Back to service overviewINSTALLATION & REMOVAL

AC installation and removal

Whether you have just bought a new air conditioner that needs installation, or need to remove an old unit or change its location, we can arrange it properly for you. Installation work depends on the site conditions and model, and we provide a clear quotation in advance.

WhatsApp Installation EnquiryView installation quotation arrangements
SERVICE SCOPE

Service coverage

  • New unit installation: Standard installation for window units and split-type units
  • Old unit removal: Safe removal and disposal service provided as needed
  • AC relocation: Replan the AC location to suit renovation or furniture changes
  • Scaffolding works: If scaffolding is required for an exterior-wall installation location, we will provide a combined quotation including scaffolding
INSTALLATION QUOTATION

Installation quotation arrangement

Installation chargesQuotation for the project

Installation charges may vary depending on factors such as pipe length, condenser placement and whether scaffolding is required.

Quotation valid for 30 days; any extra work will be explained and the quotation updated first, and work will only begin after agreement.

Please provide the following information

  • Indoor and outdoor photos of the installation location
  • AC model or capacity
  • Whether old unit removal is needed
WhatsApp Photo Quote
Quotation validity period and project change details

If the validity period has expired, please contact us before confirming the service so we can reconfirm the price and work arrangement. The quotation will be based on the price reconfirmed by both parties.

If the scope of work changes, how is the quote handled?

The quotation is based on the model, quantity, installation location and project scope provided. If the on-site situation differs from the original information, or if extra work such as additional piping, new power supply wiring or scaffolding is required, we will first explain the reason and update the quotation, and only proceed after the customer's agreement.

ADD-ON SERVICES

AC add-on services

Below are the charges for each AC add-on service; please provide the model, quantity, location and photos of the issue first. Confirm the scope of work, applicable parts and extra work charges before proceeding, and work will only start after approval.

  • Refrigerant top-up Illustration

    Refrigerant top-up

    Per unit
    HK$1,000–HK$1,800Per unit

    Confirm the quantity by model, refrigerant type and actual need; first check the cause of poor cooling, as refrigerant top-up is not needed in every case.

    Choosing Daikin refrigerant costs an extra HK$100 per unit; leakage repair and other works are to be confirmed separately.

  • Drain clearing using a Worx wet vacuum Illustration

    Drain clearing using a Worx wet vacuum

    1 unit
    HK$250Per unit
    2 unit(s) or more
    HK$200Per unit

    Use a vacuum machine to deal with drainage issues according to the drain pipe and the level of blockage. AC cleaning service already includes clearing the drain pipe with a high-pressure water jet, so this is not needed every time as an extra item.

    The drain pipe service includes 3 months of maintenance; the cause of the leak must be verified and the applicable scope confirmed at the time of booking. This does not mean that all causes of leakage are covered or that it is guaranteed never to leak again for one year.

  • Outdoor unit cleaning Illustration

    Outdoor unit cleaning

    1 unit
    HK$400Per unit
    2 unit(s) or more
    HK$300Per unit

    Removing dust from the outdoor condenser helps maintain heat dissipation; long-term dust build-up may affect cooling and increase the load on the equipment.

    Not applicable to window units; the safe work area and accessible range must be confirmed first. Extra works such as scaffolding will be quoted separately.

  • Kärcher high-temperature steam cleaning Illustration

    Kärcher high-temperature steam cleaning

    1 unit
    HK$300Per unit
    2 unit(s) or more
    HK$200Per unit

    Use high-temperature steam to assist in cleaning dirt and removing odors according to the equipment and material suitability; it does not replace the original dismantling and washing process.

    Before work starts, confirm the applicable parts and heat resistance; results depend on dirt level, contact time and site conditions.

  • SafePRO® 180-day long-lasting disinfecting and antibacterial coating Illustration

    SafePRO® 180-day long-lasting disinfecting and antibacterial coating

    1 unit
    HK$250Per unit
    2 unit(s) or more
    HK$200Per unit

    After cleaning, apply the coating according to the surface material and product instructions. Confirm suitability and usage precautions before application.

    “180 Days” is a marking in the product name. Actual performance and duration must be based on tests and usage conditions for the applicable product, and there is no guarantee of eliminating any specific virus or that it is harmless to all people and pets.

  • Plastic drain pan and hose replacement Illustration

    Plastic drain pan and hose replacement

    1 unit
    HK$250Per unit
    2 unit(s) or more
    HK$200Per unit

    If the drain pan or drain hose is aged, cracked, or cannot be cleaned and cleared, it should be checked first to confirm whether replacement is needed.

    First check the model, part dimensions and workable location; the images are product illustrations, and the actual parts are matched to the model.

WhatsApp Enquiry: Value-added Services

PARTS + BASIC INSTALLATION

AC parts (including basic installation)

Below is the reference price for parts plus basic installation, not the standalone part price. Stock availability and the final price for the specified model must be confirmed first; prices may vary by model. The scope of basic installation and extra works is subject to the confirmed quotation, and unconfirmed items do not mean stock has been reserved or a booking has been completed.

  • Air conditioner circuit board Product Image

    Air conditioner circuit board

    Including basic installation reference price
    HK$1,600Per unit
    Model and stock must be checked first
  • Air conditioner capacitor Product Image

    Air conditioner capacitor

    Including basic installation reference price
    HK$800Per unit
    Model and stock must be checked first
  • Air conditioner motor (Style 1) Product Image
    Style 1
    Air conditioner motor (Style 2) Product Image
    Style 2

    Air conditioner motor

    Including basic installation reference price
    HK$2,700Per unit
    Model and stock must be checked first
  • Air conditioner compressor Product Image

    Air conditioner compressor

    Including basic installation reference price
    HK$3,600Per unit
    Model and stock must be checked first
  • Air conditioner water pump Product Image

    Air conditioner water pump

    Including basic installation reference price
    HK$1,600Per unit
    Model and stock must be checked first
  • AC sensor Product Image

    AC sensor

    Including basic installation reference price
    HK$2,800Per unit
    Model and stock must be checked first
WhatsApp Enquiry: Parts and Installation

Before installation, review the scope of work

Installation process

The following sets out the basic installation scope and the work to be carried out on site. The actual method will be assessed based on the model, installation location and site conditions.

Back to installation quotation arrangement ↑
Process index02Model type
01

WINDOW UNIT

Window-type air conditioner

Basic installation work

  • Remove the old air conditioner and take it away if required.
  • Install the rack, including a U-shaped rack; glass hole cutting and sealing of the existing glass window.
  • Install the original plastic drain tray of 4 × 4 inches supplied with the air conditioner purchase.
  • Silver sealant edging can be done with odourless silicone if preferred; silver aluminium strip edging for up to 1 inches.
  • Install and connect the drain pipe, then test after the new unit is installed.
Expand installation steps in order

  1. Remove old unit

  2. Install the rack

  3. Drain connection

  4. Install the new unit

  5. Seal the glass

  6. Test run

  7. Completion and tidying of the work area

02

SPLIT UNIT

Split AC

Basic installation work

  • Remove the old air conditioner and take it away if required.
  • Install the indoor and outdoor units, connect the copper pipe and properly insulate the copper pipe.
  • Connect the inlet and outlet water piping and handle glass openings as required by the project.
  • Connect to an existing compliant power supply beside the unit; running a new power line from the main switch to the unit side is not included in the basic works and will be quoted separately.
  • Vacuum the system, then test the air conditioner after the connections are completed.
Expand installation steps in order

  1. Remove old unit and install bracket

  2. Install the outdoor unit, drill a hole, and install the indoor unit

  3. Lay copper piping and insulation, and complete the pipe connection

  4. Connect water inlet and outlet

  5. Connect the existing compliant power supply and control wiring; running a new power line will be quoted separately

  6. Vacuum the system

  7. Test run, then complete and tidy the work area

On-site assessment before work starts

The above covers installation work. The actual arrangement will be assessed according to the model and site conditions. The engineering quotation will first confirm the scope, and work will only start after the customer agrees; not all installation locations can be handled in the same way.

Real installation cases

On-site installation record

01 CASE
On-site photo of split-type AC installation at Oceanaire, Ma On ShanMa On Shan · OceanaireSplit-type AC installationWatch on-site work video

AFTERCARE

Confirm inclusions and exclusions

Installation warranty, original manufacturer warranty and extra works are easier to verify when viewed separately.

01

One-year installation and maintenance

We provide one year of installation warranty, covering brackets and leaks caused by glass sealing or sealant.

What is included and what is not?
  • Split units also cover refrigerant leaks caused by poor refrigerant pipe connections; not all causes of water leakage or refrigerant leakage are related to installation maintenance.
  • Scaffolding and safety frame costs are not included in maintenance. Problems caused by poor third-party maintenance or lack of maintenance are also not covered.
02

Original manufacturer maintenance

The air conditioner itself is maintained and repaired by the relevant manufacturer/general agent in accordance with its terms and conditions of warranty and maintenance.

How is it different from installation and maintenance?
  • Installation warranty and machine warranty are two different matters: installation warranty does not mean all parts of the entire unit or all faults are handled free of charge.
  • If a problem occurs, please provide the installation details, model, and fault symptoms first to confirm whether it is an installation issue or a machine issue.
03

Extra work and exclusions

Pulling a new power supply from the main switch to the unit is not included; please provide the existing power supply location for the technician to assess and quote separately.

Which projects require a separate quote?
  • Scaffolding, safety frames, post-completion relocation, decorative repairs, leak prevention and sealing work cannot be treated as included in the basic works. The required scope and fees must be confirmed first.
  • If later inspection or repair requires removing and restoring covers, or removing sealed window-side glass, the related work and costs must be confirmed separately.
  • This does not include handling electricity meter applications or ventilation licences. If you need to reuse the existing refrigerant piping or drain pipe, please first understand their condition and the arrangement for future maintenance costs.
04

Work permission and pre-booking preparation

Installation work and location must first obtain the relevant owner’s, estate management office’s or Housing Department’s approval; please check the building’s work, scaffolding and access requirements before making an appointment.

What photos and preparations are needed?
  • Please provide full views of the indoor and outdoor locations, the model and horsepower, the old unit and drain position, the existing power supply location, and the expected pipe route.
  • Please first state any need for exterior wall and high-level work, as well as glass handling. The installation position must be stable and have enough working space; the actual work and cost will be assessed before confirmation.
  • Clear away clutter and items that may be damaged from the work area. Customers do not need to remove the old unit, connect wiring or handle the refrigerant pipe themselves.
How do I report after-sales issues?

If there is a problem after service, please contact customer service via WhatsApp, phone or email and provide the following information so we can verify the service and the cause of the issue.

  • Service date, booking name and contact number.
  • Service address, and the unit, model or service item with the issue.
  • When did the problem occur, what exactly happened, and provide clear photos or short videos.
  • If you have a quotation, payment record or service receipt, please provide them as well.

Customer service will first check the records and the cause of the problem, then confirm whether maintenance applies, how it will be followed up, and any possible charges; reporting a problem does not mean all faults will be repaired free of charge.

View warranty and after-sales notes →

Booking, payment and rescheduling

Arrangements before and after booking

01

Deposit and payment

  • Bank transfer, FPS, cash, PayMe, and Alipay are accepted.
  • An installation booking generally requires a deposit of 50% of the project fee.
  • The deposit will be deducted from the total fee, and the balance will be paid upon completion of the service or work. The deposit will not be added on top of the total price.
02

Reschedule

  • For cleaning, repair, and installation, you may reschedule free of charge if you notify us at least 24 hours before the appointment.
  • If notice is less than 24 hours, or if the appointment is rescheduled after the technician has arrived: installation rescheduling fee is charged at 10% of the total order amount or HK$2,000, whichever is higher.
  • Please contact customer service via WhatsApp to reconfirm the service date and time.
  • The rescheduling fee, cancellation fee, and attendance fee are separate arrangements. If rescheduling is requested after arrival, it will be handled under the above rescheduling fee and will not be added to the HK$500 attendance fee.
03

Cancellation and refund

  • If the booking is cancelled directly before the technician arrives, a HK$300 cancellation fee will be charged for all services, regardless of how far in advance notice is given; free rescheduling in advance does not mean free cancellation.
  • Cancellation of installation with extra works fee: 20%; that is, HK$300 cancellation fee plus extra works fee: 20%.
  • For any AC fee already paid, the handling and refundable amount must be confirmed separately depending on whether the item has already been ordered; full refunds are not guaranteed.
  • After cancellation, the applicable cancellation fee will be deducted from the deposit already paid, and the balance will be refunded. For installation, the refundable amount will also be checked separately according to the above work fee and the air conditioner ordering status.
  • Refunds can be made by bank transfer, FPS, cash, PayMe or Alipay. Customer service will confirm the actual refund method and amount.

For example, if a cleaning deposit of HK$500 has been paid and the appointment is cancelled before the technician arrives, HK$300 cancellation fee will be deducted and HK$200 will be refunded.

View full payment and booking terms →

AirConditioner Installation and Replacement FAQ

Understand the applicable scope, charges and arrangements before booking

How is the installation quotation for air conditioning confirmed?

First provide photos of the old and new models, indoor and outdoor unit locations, supports, copper pipes, drainage and power supply, and state whether old-unit removal and handling are needed. The quote is confirmed according to the actual work scope; do not assume the old pipes, brackets or power supply can be reused just because the brand or horsepower is the same.

Does basic installation include running a new power supply from the main switch?

Not included. Running a new power supply from the main switch to the unit is not within basic installation. When booking, please state the existing power supply and location first so customer service can confirm the required work and quotation. Extra electrical work is not to be treated as included in basic installation.

What does one-year maintenance cover after air conditioner installation?

General installation includes a one-year warranty, covering the mounting bracket, as well as water leakage caused by glass sealing or sealing adhesive; for split units, it also covers refrigerant leakage caused by poor refrigerant pipe connections. Not all water leakage or refrigerant leakage is covered by installation warranty, and it is separate from the manufacturer’s warranty for the unit.

Can the horsepower and installation location be determined only by room area?

Area or tool-based estimates are for initial reference only and must still take into account sunlight exposure, ceiling height, usage, unit location and heat dissipation space. The installation location must also be checked for safe access, fixing, drainage, power supply and management requirements. The whole job cannot be determined by a single horsepower figure alone.

View other service and booking FAQs →

INSTALLATION & REMOVAL

Enquire about air conditioner installation or removal quotation

Send via WhatsApp photos of the indoor and outdoor installation locations, the air conditioner model or horsepower, and whether an old unit needs to be removed, so we can understand the scope of work and arrange a quotation.

WhatsApp Enquiry: Installation and RemovalBook Online

Please provide the model, quantity, district, issue, and preferred date. If you have photos, please send them too for a more accurate quotation.