Ducted Air Conditioning Brisbane

We are an experienced Brisbane ducted air conditioning company, who install, repair, and service ducted air conditioners. Our extensive experience allows us to recommend and install the ideal ducted air conditioner for your home or commercial building.

Ducted air conditioners are a complete climate control solution that offers superior energy efficiency for home or larger buildings. However, they’re complex systems that must be installed by qualified professionals, and the team at Mercury Installations has over 15 years of experience working with ducted air conditioning in Brisbane. We specialise in supplying and installing units that are specifically tailored to the needs of our clients, which are sourced from gold-standard manufacturers Panasonic, Daikin, and Mitsubishi.

Why choose us?

Mercury Installations

We have over 15 years experience installing, repairing and servicing Brisbane ducted air conditioners

Mercury Installations

We install ducted air conditioning systems for every type of building, including homes, offices, and industrial locations

Mercury Installations

5-year installation warranty and a 5-year manufacturer’s warranty included

Mercury Installations

We recommend and install gold-standard ducted air conditioners from Panasonic, Daikin and Mitsubishi

Mercury Installations

We are fully licensed and qualified for ducted air conditioning installations in Brisbane including for any electrical work needed.

Mercury Installations

We install high-tech, WiFi-enabled smart systems, giving you finite control over your ducted air conditioner

Mercury Installations

We are fully insured for public liability of up to $10 million

Mercury Installations

We don’t use sub-contractors, as we only trust the quality of our own work

Mercury Installations

Our Brisbane ducted air conditioning units are made by the best manufacturers in the business, which makes them more efficient and considerably cheaper to run

Mercury Installations

Our ducted units provide superior airflow and the capacity to effectively disperse cool air (for cooling) or minimise the loss of cold air (for warmth)

Mercury Installations

Our ducted units provide advanced temperature control with advanced zoning technology

Mercury Installations

Our ducted units provide near-silent operation, and are installed in the ceiling cavity of underneath your flooring

Get In Touch

Get a free Quote from Mercury Installations today.

76 Funnell St, Zillmere Brisbane, Qld 4034

What we do



We complete installs for new builds or retrofit them to existing properties. We have ducted air conditioner systems that suit every type of property type and size, from premium manufacturers Panasonic, Daikin, and Mitsubishi. All we need is a quick chat (and visit to your property, if needed), and we’ll recommend and install the ideal system for you.




If your Brisbane ducted air conditioning system has seen better days, we can recommend an upgrade based on your preferences and your property. This includes removing the existing air conditioner and fully replacing it with the new ducted system. We’ll also dispose of the old air conditioner for you, so you can relax and enjoy your modern ducted air conditioner.

Servicing & Maintenance

Servicing & Maintenance

We offer complete ducted air conditioning service in Brisbane, to keep them in top condition. This includes checking ducting, cleaning the filters, fans, and coils, checking airflow for leaks, and checking refrigerant levels. If refrigerant levels are low, we’ll re-gas them for you. Regular servicing prolongs your air conditioner’s life, and reduces your electricity bills



We repair faulty air conditioners and can make recommendations on whether your system should be replaced. Repairs can include replacing air filters and blown fuses, emptying the condensation drain, replacing the condenser fix, replacing the thermostat, and a ton of other issues that can crop up. We’re worked with these systems for years and can fix every problem.


Our installation process

Before we make any recommendations or take steps to undertake Brisbane ducted air conditioning installation, we will chat with you about your needs and if necessary, visit your property for a quick inspection. The team will assess the construction of your property, including the power supply. When assessing your home’s construction, we are primarily analysing the materials it is constructed of. This is because some building materials harbour more cold air, and certain properties may require a more customised approach to installation than others.

For example, homes constructed mostly of timber are unlikely to retain cold air to the same extent as homes constructed from bricks or concrete, and this will determine where the ducts should be installed. In terms of power supply, our primary concern is safety. If your property is not equipped to support a ducted air conditioning system, we will need to arrange for the appropriate improvements to be made. This will ensure your air conditioner operates efficiently and protects the property’s residents from electrical hazards.

The team will also note the floor plan, internal structure and use of each area, to ensure your system is installed in an optimal manner. Inspecting the number of rooms and the floor space and ceiling height will also give us a clear picture of the area your unit will be required to cool and/or heat, and the potential strain on certain rooms. For example, laundries and kitchens often contain appliances that generate a considerable amount of heat, and your unit will need to be installed to account for this.

Once we have discussed your options based on your needs and preferences, and you have decided upon a suitable unit, we can then organise to install it at a time that suits you. Ducted air conditioning installations in Brisbane typically takes one to two days depending on the size of the unit and what’s involved.

We value our customers and will take proper care of your property during the process. Our team are reliable and punctual, so they will arrive on time. We also welcome your input during the installation process and will strive to meet all of your needs.

Once the installation is complete, we will provide you with your warranty information and full instructions on how to run your ducted air conditioner. If you have any concerns following the installation, please don’t hesitate to contact us.

Why choose a ducted air conditioner?

  1. Ducted AC systems are ideal for larger properties that need to cover multiple rooms. They work from a single indoor unit that delivers cooled air throughout the home via ducts and vents
  2. Ducted systems are hidden inside your roof (or under your flooring), so are the most aesthetically pleasing system you can buy. The only thing you’ll see are the vents themselves, which are just under the ceiling.
  3. Ducted systems are highly desirable, and may help to increase the value of your home. This is because they are neatly tucked away in the ceiling and ultra quiet. They also include zoning that allows you to restrict cooling to areas that are being used.
  4. Ducted systems can be controlled from a central wall-mounted unit, and can also have smart capabilities that allow it to be controlled from mobile phones and computers. You can even activate the system when you’re out!

Ducted air conditioning | Expert guide

Ducted air conditioning offers a whole-house or property cooling solution, and if the system is a reverse cycle model, will heat your home as well. “Zoning” technology allows you to control the temperature of individual rooms and switch it off in rooms not being used, all from a centrally controlled thermostat. We can also install smart technologies for your air conditioner, which allows you to control the system from your phone, tablet, or computer.

In a ducted system, the indoor unit is usually located in the ceiling cavity, and the outdoor unit in a discrete position outside. These indoor units are then connected with ducts, with conditioned air circulating through them, and delivered to each designated zone in the property. This means you can choose the temperature of each room, or switch it off entirely for rooms not being used.

How does ducted air conditioning work?

Ducted air conditioning uses two units and a series of pipes and ducts to channel the cooling refrigerant and air around the system. One of the units is indoors (the fan coil unit) and this is usually placed in the ceiling cavity. The other unit (the compressor) is kept outside, preferably somewhere tucked away so it doesn’t disturb you. Together, these two units are the “engine” of the ducted system, and they work together to pump air around ducting (which is also kept in the ceiling cavity). The ducts are usually silver, which reflects heat and helps to keep the air inside nice and cool.

The beauty of ducted air conditioning is that you can set zones, which are essentially divided areas in your home where you can individually control the system. In a typical 3-bedroom home, you’d have one zone for the kitchen and lounge, and one zone for each bedroom, and each of these zones can be turned on or off, and even have different temperatures if you have a premium system. Zones are possible due to air regulators called dampers within the ducting, which open and close and control the airflow via diffusers.

With zoning, a “constant” must always be on for the system to work, which is usually the main living area. This prevents pressure build-up in the system. Zoning is amazing technology because it allows you to simply turn off zones that aren’t being used, and save tons of power.

Every ducted AC system must also have a return air vent, which filters and cleans the air and ensures that the efficiency of the system is maintained. For this reason, the return air vent should be regularly cleaned.

What are the benefits of ducted air conditioning?

Powerful capabilities

Ducted air conditioning offers fast, comprehensive, energy-efficient and even temperature control. Ducted systems also disperse cool air more effectively and have the ability to minimise the loss of cold air.

Ease of control

Ducted systems are easy to control, particularly if there are smart features enabled. If the system is zoned, it allows you to select different settings for different rooms. Timers can also be set to activate warm or cool air and turn off after a set period.

Aesthetically pleasing

Because the ducts and air conditioning vents are built into the property, ducted air conditioners are discrete and blend in seamlessly, with only the ceiling ducts and control panel on display.


Ducted air conditioners are whisper quiet with none of the humming and noise that can be produced by other systems (particularly older systems).

Value for money

Ducted air conditioning is more expensive than split systems, but lasts for up to 20 years, and tends to add value to a property. They also allow for the efficient heating or cooling of larger properties, including larger homes with three or more bedrooms.

What is the cost of ducted air conditioning in Brisbane?

The cost of a ducted conditioning system in Brsbane depends on the following:

The size of your property

The size of your property is the most important factor when it comes to ducted AC costs, simply because the more space that needs to be cooled, the bigger the machine you will need. We calculate the machine’s capacity based on the size of the area that you want to cool (in cubic metres), but you’ll find a rough guide based on rooms as follows:

  • 1 bedroom = $5,000
  • 2 bedrooms = $7,000 to $8,000
  • 3 bedrooms = $8,000 to $10,000
  • 4 bedrooms = $10,000 to $12,000
  • 5 bedrooms = $12,000 plus

The brand

As you might expect, premium brands cost more because they are more durable and efficient. You can certainly save a lot of money on a cheap manufacturer but you’ll probably pay more for repairs and servicing, and potentially a lot more on your energy bills. Ducted AC systems from cheaper brands just don’t work as efficiently as reputable brands. That’s why we recommend manufacturers like Panasonic, Daikin, and Mitsubishi—you know you’re getting a high-quality system. They have a higher upfront cost, but you will save money in the long run.


Ducted air conditioning includes zones that can be turned on and off (apart from the “constant” which needs to be always on, which is usually the main living area), and the more zones that you have in your home, the higher the cost. That’s because electrical mechanical valves called dampers are required for every zone, which controls the intensity of the airflow and allows you to activate, deactivate, and change the temperatures of individual zones.

The zone’s control system will also be a factor with cost. Advanced systems like MyAir are extremely popular because they provide premium functionality like app control, a wall-mounted tablet (often an iPad or Android device), integration with Google Home and Amazon Alexa, and more. But if you’d like to go with something more basic, you can save quite a lot.

The piping and ducting needed

Refrigeration piping channels the refrigerant around the system, and ducting channels the conditioned air itself. If you have a larger property, we’ll need more of both, which will add to the cost of the installation.

The switchboard

If you live in an older home, your electrical switchboard may need to be upgraded for the ducted air conditioner to work. In this case, you can expect to pay around an extra $1,000.

How much does ducted air conditioning cost to run?

It is not mandatory that ducted air conditioning carries an energy efficiency rating label, although some manufacturers do choose to label them. However, they do need to meet minimum energy performance requirements according to the Annualised Energy Efficiency Ratio (AEER) and/or Annualised Coefficient of Performance (ACOP) for Australia. It is generally the most expensive form of air conditioning to run (up to $2 an hour in energy usage based on 35 cents per kWh), compared to a split system, which costs around 60 cents.

However, ducted systems often include zoning that allows you to activate and deactivate certain areas of your home, which can make a substantial difference to energy usage. If you’re only wanting to cool the master bedroom at night, and a specific zone has been created for this area, you can turn off every other zone and have the system working to a much lower capacity. When this is taken into account, energy for ducted systems can become almost comparable to split systems.

What size ducted air conditioner do I need?

To calculate the required size of a ducted air conditioner, you’ll need to follow three steps:

1. Determine the total floor area of the space that needs to be cooled
This is usually the living areas and bedrooms. We’ll use 100m2 for our example.

2. Calculate the total wattage for the air conditioner
To calculate the required wattage for the AC system, you’ll need to do the following:

  • For properties with a ceiling height of 2.4 metres: multiply the total floor area by 150 (watts)
  • For properties with a ceiling height of 2.7 metres: multiply the total floor area by 160 (watts)
  • For properties with a ceiling height greater than 2.7 metres: multiply the total floor area by 175 (watts

Let’s say your property has a ceiling height of 2.7 metres. Our calculation would be 100 x 160, which comes to 16,000 watts.

3. Convert to kilowatts
Now all we need to do is convert our number to kilowatts. To do so, simply add a decimal point three places from the end of the number. In our 16,000 watts example, this would convert to 16.000 kW, in which case you’ll need a 16kW system.

What brands do you recommend?

We recommend and install gold-standard ducted air conditioners from Panasonic, Daikin and Mitsubishi Electric. Here is a brief rundown of the models they offer.


Panasonic’s range of ducted air conditioners feature smart technologies including Wi-Fi and intuitive voice control, with a range of capacities.

  • High Static Ducted: Has high static and large airflow capabilities for installation flexibility. “Static” refers to the amount of pressure a unit needs to overcome friction. The longer the ducts required, the more static that’s needed. Therefore, this model would be suitable for larger properties. Capacities range from 6kW to 22.4kW.
  • Slim-line Ducted: Ideal for properties where space is limited. Capacities range from 6kW to 14kW.
  • Ultra Slim Ducted: At only 200mm high, it can leverage the tightest of spaces.


Daikin air conditioners include features such as automatic airflow adjustment and fan speed selection to suit the set temperature, and a Night Quiet Mode to reduce outdoor noise levels while you sleep. Additional functionality includes an off timer, weekly schedule timer, and a quick cool/heat mode that temporarily increases power to reach your desired temperature.

  • Premium Inverter Ducted: Designed with R22 retrofit capability, it is suited for small to large properties.
  • Inverter Ducted: A compact design for small to large houses, and ideal for installations where roof and outdoor space is limited.
  • Slim-Line Ducted: Suited to narrow ceiling spaces.
  • Bulkhead System: Designed for those who are after a discreet installation, ie. if the property has “drop” or shallow ceilings.

Mitsubishi Electric

This brand features four series of ducted air conditioners with a number of models in each. The range includes reverse cycle models that offer cool air in summer and heat in winter. They can incorporate zone selection and are ideal for multiple room applications.

  • Ceiling-concealed: Has a low profile and lightweight design with a wide selection of fan speeds.
  • Ducted 10 to 13.5kW: Offers quiet operation with single-phase or three-phase power options, plus optimal airflow due to high static pressure.
  • Ducted 16 to 19kW: Has a two-piece construction with single and three-phase power options.
  • Ducted 22kW: Has the largest heating/cooling capacity with a three-phase power supply.


The indoor unit is typically installed in the ceiling cavity, where it’s nice and quiet. If your property doesn’t have enough space in the ceiling, it may be possible to install the system underneath your flooring instead.

The outdoor unit is placed in a discreet location, typically away from living areas where you won’t be disturbed by the noise. We are also mindful of the noise to your neighbours, so we’ll try to install the unit in a spot that suits everyone.

We try to accommodate all requests, however the location of vents will depend on the roof space of the property as this governs where the vents can be placed. We also need to space out the vents as much as possible so that any preset zones are clearly defined.

Your ducted air conditioner should be serviced annually by a qualified professional, which will ensure any potential issues are identified or prevented, and its operational efficiency is maximised. Servicing can include common tasks like checking refrigerant levels, re-gassing the refrigerant, cleaning filters, and checking the integrity of the ducting.

Ducted air conditioners allow you to cool different rooms individually, so if your unit is only working in one room, it may simply be switched off in other rooms. Check your user manual for instructions and if the issue persists, don’t hesitate to contact us.

Ducted AC can usually be installed in a single day, which includes fitting the machines, installing the vents (including the return air vent), and installing the refrigeration piping and ducting itself. Complex, larger jobs may take two or more days, however this is rare. You can expect to have your ducted system up and running in just a single day.

The indoor unit (fan coil) is usually located inside the ceiling cavity, where it’s nice and quiet, and the outdoor unit (compressor) is placed outside, preferably somewhere where it won’t disturb you. One of the best things about ducted AC is that it’s hidden away—all you see are vents, not bulky wall-mounted units.

We certainly try to install the vents in the positions you’d prefer, but we also need to work with your unique property to get the best possible outcome. We’ll talk to you about where we are going to install the vents to ensure you’re happy.

The defining factor is usually how many areas/rooms you want to cool in your home. If you have a house and want to cool three or more rooms, a ducted air conditioner will be capable of doing so with just a single main unit installed in the ceiling (or under your floor), and a unit that sits outside. Cool air is delivered via ducting that runs throughout the house and pumped through subtle air vents in each room.

If you have a small apartment or a house where you only want to cool one area, a split system is a better option because it’s just a single wall-mounted unit, and a unit that sits outside. The split system will be suitably sized for the property, and will consume much less power than a ducted air conditioner, which have much higher energy capacities. If you want to cool multiple two rooms/areas, you can have individual wall-mounted units in each room (this is called a multi-split system).

COVID can spread through the air, which usually occurs from person to person. But there’s ongoing debate as to how often this happens, with some scientists believing it to be low. So while ducted air conditioning can technically spread COVID, we simply don’t have enough research to know how commonly it occurs, if at all (Jessica Craig, 2002, NPR).

Ducted air conditioners work on electricity, so they need a power source to function. There’s another type of system called gas ducted heating, but this is completely different to air conditioners, and unfortunately we don’t supply them.