Your Guide to Buying Ducted Air Conditioning

Thinking about getting ducted air conditioning but not sure where to begin? It’s a big decision, and with so many options on the market, it can feel confusing.

That’s why we’ve created this simple guide to help you understand what to look for and how to move forward with confidence.

This article will break down everything you need to know to choose the right ducted air conditioning setup. We’ll discuss the factors to consider when choosing ducted air conditioning, its benefits, running costs, the installation process, and more.

Whether you’re replacing an old unit or fitting an air con into a new-build, this guide will help you stay comfortable with a system that suits your home and lifestyle.

Jump to:

Factors to Consider When Choosing a Ducted Air Conditioning System
Installation Process for Ducted Air Conditioning
Ducted Air Conditioning Prices
Benefits of Ducted Air Conditioning
Ducted Air Conditioning Servicing and Maintenance
Booking Your Ducted Air Conditioner Installation With Hewitt Trade Services

Factors to Consider When Choosing a Ducted Air Conditioning System

1. Home Size and Layout

The size and floor plan of your home will directly impact the size of the ducted air conditioning system you need. Larger homes or those with multiple levels may require more powerful systems and additional zoning.

A system that’s too small won’t cool or heat your home effectively.
One that’s too large may cycle on and off too often, wasting energy.

A professional load calculation can help determine the correct capacity based on square metres, ceiling height, insulation, and room orientation.

2. Zoning Capabilities

Zoning allows you to control airflow to specific rooms or areas of your home.

You can cool or heat only the rooms you’re using.
Zoning reduces energy use and boosts comfort.

Make sure your system supports multiple zones and that the control system is user-friendly.

3. Energy Efficiency

Energy efficiency is one of the most important factors to consider when choosing a ducted air conditioning system in Australia. A more efficient system doesn’t just help the environment — it also saves you money on your electricity bills over time.

Check the energy star rating – This helps consumers compare the energy efficiency of different models. The more stars a unit has, the more efficient it is. Aim for a system with a good energy rating, especially if it will be used frequently or for long periods.
Look for inverter technology – Inverter air conditioners are designed to operate more efficiently by adjusting the compressor speed to maintain a consistent temperature. Instead of constantly turning on and off (like older systems), inverter units ramp up or slow down as needed. This reduces energy waste, lowers running costs, and helps maintain a more stable and comfortable indoor climate.
Long-term savings – While high-efficiency systems may have a higher upfront cost, they can significantly reduce your power usage. Over time, these savings can outweigh the initial investment, especially in Brisbane, where cooling or heating may be needed year-round.

4. Air Quality and Filtration

Some ducted systems come with built-in air purification or HEPA filtration features.

Ideal for homes with pets, allergy sufferers, or areas with poor outdoor air quality.
Regular maintenance of filters and ducts also affects air quality over time.

5. Installation Requirements

Ducted systems are more complex to install and are often better suited to new builds or homes undergoing major renovations.

Ceiling and roof cavity space is required to fit the ducts.
Access for outdoor units and zoning dampers must also be considered.

Licensed installers at Hewitt Trade Services can assess your property to determine what’s possible.

6. Running and Maintenance Costs

When investing in a ducted air conditioning system for your home, considering the ongoing running and maintenance costs is vital. While these systems offer excellent whole-home comfort, they typically come with higher operational expenses compared to split systems.

Running Costs

Generally, people view ducted systems as being more expensive to run. The average annual running cost for ducted in Brisbane is around $2000 for cooling your home and about $100 for heating. For a split system, it costs around $396 for cooling and $30 for heating a large room.

This may look like a split system is cheaper, but you should factor in that ducted covers the entire home while a split system covers one room, so the running costs are actually very similar.

Regular Maintenance

Routine maintenance is essential for keeping your system running efficiently and avoiding expensive repairs down the track. This includes:

Filter cleaning or replacement every few months.
Professional servicing at least once a year to check refrigerant levels, electrical connections, and system performance.
Duct cleaning every few years, especially if your home is prone to dust, has pets, or if someone in the household suffers from asthma or allergies.

Neglecting maintenance can lead to reduced airflow, poor air quality, and higher running costs as the system works harder to maintain your desired temperature. As ducted systems are more complex, servicing and maintenance can cost more.

Zoning Can Reduce Running Costs

Installing zoning features allows you to cool or heat only the areas of your home that are in use. For example, you might run the air conditioning in bedrooms at night and living areas during the day. This helps reduce energy consumption and puts less strain on the system, ultimately lowering your electricity bills.

7. Smart Control and Automation

Many modern systems offer Wi-Fi connectivity, allowing you to control your ducted air conditioning from your smartphone or integrate it with a smart home system.

Handy for adjusting temperature zones while you’re away from home.
Some systems can learn your habits and optimise settings automatically.

8. Pricing and Payment Options

Of course, pricing plays a large part in your final choice. But quality and service should ideally come before that.

Some air conditioning suppliers and installers (like Hewitt Trade Services) also provide easy, interest-free finance options such as Zip and Humm90. This can help with your budgeting when choosing your new ducted air conditioning system.

Installation Process for Ducted Air Conditioning

Once you have chosen the right ducted air conditioning system for your home, the next step to consider is the installation process. Always hire a licensed HVAC contractor with experience in installing ducted air conditioning systems.

They have the expertise and knowledge to ensure the system is installed correctly and meets all safety and building code requirements. Hiring a professional installer is a legal requirement.

The installation process typically involves the following steps:

Site inspection – The HVAC contractor will assess your home’s layout and determine the best location for the central unit, ductwork, and vents.
Design and ductwork installation – The contractor will design the ductwork layout to ensure proper airflow and distribution. They will install the ducts in your ceilings or floors, connecting them to the central unit.
Central unit installation – The contractor will install the central unit, connecting it to the ductwork and electrical supply.
Vents and grilles installation – Vents and grilles will be installed in each room or zone to allow the cooled air to flow into the space.
Electrical and control wiring – The contractor will connect the central unit to the electrical supply and install any necessary control wiring, such as thermostats and zone controllers.
Testing and commissioning – After the installation is complete, the contractor will test the system to ensure it is functioning correctly. They will also provide instructions on how to operate and maintain the system.

Proper installation is crucial for the optimal performance and efficiency of your ducted air conditioning system. Hiring a professional HVAC contractor ensures the installation is done correctly, saves you from potential problems down the line, and keeps you on the right side of the law.

Ducted Air Conditioning Prices

As noted, high-quality brands can cost more than some others. Here’s a breakdown of the cost for Daikin ducted air conditioning. The below prices include the cost of installation.

Daikin with an Advantage Air MyAir Zone control system

Capacity (kW)

10.0
12.5
14.0
15.5

Price

$14,215
$14,790
$15,415
$15,930

Daikin with an Advantage Air Zone6 control system

Capacity (kW)

10.0
12.5
14.0
15.5

Price

$12,695
$13,270
$13,895
$14,410

These prices include GST.

Benefits of Ducted Air Conditioning

Ducted air conditioning is a popular choice for many Australian households, offering whole-home comfort, sleek design, and energy-saving potential. If you’re considering a new system, here are five key benefits that make ducted air conditioning a smart investment for your home.

1. Whole-Home Climate Control

One of the biggest advantages of ducted air conditioning is its ability to cool or heat your entire home from one central system. Unlike split systems, which only control the temperature in individual rooms, a ducted system distributes air through ducts hidden in the ceiling or walls. This means every room can stay at a consistent, comfortable temperature — perfect for families or larger households.

You can also maintain comfort all year round with reverse cycle ducted systems, which offer both cooling and heating from the same unit.

2. Sleek, Unobtrusive Design

Ducted systems are discreet and designed to blend seamlessly into your home. The only visible components are small ceiling or wall vents, so you won’t have bulky units hanging on your walls or windows. This makes them a great option for modern or architecturally styled homes where aesthetics are important.

Because the main unit is installed in the roof space or outside, there’s minimal impact on your interior design or furniture layout.

3. Zoned Temperature Control

Many ducted systems come with zoning capabilities, allowing you to divide your home into sections (or “zones”) that can be controlled independently. This means you can cool or heat only the rooms you’re using, rather than the whole house, helping to save energy and reduce running costs.

For example, you can run the air conditioning in the living area during the day and switch to bedrooms at night, all at the touch of a button.

4. Quieter Operation

Ducted systems are known for their quiet performance. Because the noisy components (like the fan and compressor) are typically located outside or in the ceiling cavity, the indoor operation is virtually silent. This is especially useful for bedrooms, nurseries, or study areas where peace and quiet are important.

With fewer indoor components running, you can enjoy a comfortable home environment without the constant hum or buzz of a wall unit.

5. Increases Property Value

Installing ducted air conditioning can also add value to your home. Buyers looking for comfort and energy efficiency will see a ducted system as a major plus — particularly if it includes zoning, smart controls, or inverter technology.

So, while ducted systems have a higher upfront cost than other types, they can pay off in the long run if you decide to sell your property.

Ducted Air Conditioning Servicing and Maintenance

As mentioned earlier, ducted systems are more complex than other options like split systems. While you can do a few things to help maintain your ducted air con, servicing and maintenance should generally be left to the professionals.

Here’s what you can expect when it comes to ducted air con servicing and maintenance.

1. Filter Cleaning and Replacement

Clean Filters Regularly – Dirty filters block airflow, forcing the system to work harder and consume more energy. Check filters every one to three months and clean or replace them as needed. Filter cleaning is straightforward for most ducted systems and involves removing, washing, and drying the filters before reinstalling them.
Replace Filters if Necessary – If the filters are worn or damaged, replace them to maintain optimal airflow and ensure effective filtration.

2. Air Vents and Grilles Cleaning

Dust and Clean Vents – Dust can accumulate on vents and grilles. Regularly clean these with a damp cloth or vacuum to ensure air can move freely through the system.
Inspect Vent Placement – Ensure furniture or other objects are not blocking vents to maintain proper air circulation throughout your home.

3. Check and Clean the Outdoor Unit

Clear Debris – Ensure the outdoor unit is free of leaves, dirt, and debris that can restrict airflow. Keep plants and other objects at least 60 cm away from the unit for proper ventilation.

4. Schedule Professional Servicing

Check for Duct Leaks or Blockages – Ducts can develop leaks or blockages over time. A professional technician can inspect the ducts for leaks, repair any damage, and clear blockages to restore proper airflow.
Clean Ducts if Needed – Dust, debris, and even mould can accumulate in the ducts. Cleaning the ductwork helps improve indoor air quality and prevents potential health issues. We recommend professional duct cleaning every few years, especially in homes with pets or people with allergies.
Test Thermostat Accuracy – Ensure the thermostat accurately reads the temperature and that settings are responsive. A miscalibrated thermostat can result in uneven cooling or heating and cause the system to work harder than necessary.
Upgrade the Thermostat – An expert may recommend upgrading to a programmable or smart thermostat to improve energy efficiency and provide greater control over temperature settings.
Check Refrigerant Levels – Low refrigerant levels can reduce cooling efficiency and damage the compressor. A technician can check and refill refrigerant levels if the system isn’t cooling as expected.
Inspect for Refrigerant Leaks – Leaks can reduce efficiency and harm the environment. An expert will repair them promptly if detected.
Check Wiring and Connections – Loose or damaged wiring can lead to malfunctions and pose fire hazards. A technician will inspect electrical connections and test circuit breakers to ensure they’re in good condition.
Test the Fan and Blower Motors – Ensure that fans and blowers run smoothly and quietly. Lubricate moving parts as necessary to avoid wear and tear.
Clean the Drain Line – Algae or dirt can clog the drain line, leading to water leaks and potential damage. A professional will clear any blockages and ensure proper drainage.
Check the Drain Pan – Ensure the drain pan is free from rust, cracks, or debris. Replace or repair the pan if needed to prevent water leaks.
Clean Condenser Coils and Fins – Dirt and debris on the condenser coils and fins can affect heat exchange and reduce system efficiency. These components are delicate, so we recommend leaving this to the professionals.

Proper servicing and maintenance will keep your ducted system running smoothly for years. A quality ducted system can last around 15 years and beyond.

Booking Your Ducted Air Conditioner Installation With Hewitt Trade Services

Hewitt Trade Services is the best in the air conditioning installation business in the Brisbane area. We have installed, repaired and serviced thousands of units during 21+ years of business.

Our years of experience give us a laser focus on the most common air conditioning challenges in the Brisbane community. We are highly trained, reliable, professional, efficient and fast.

Our 4.8-star rating from over 330 reviews on Google proves it.

We can help you assess your needs, get a quote and make informed decisions about installing your air conditioner. Using a reputable company like Hewitt Trade Services ensures a smooth and satisfactory experience. You can enjoy the benefits of a reliable and efficient air conditioner for years to come.

Are you ready to make an informed decision about your air conditioner installation, ensuring comfort and efficiency in your home or business for the years to come?

We service the following areas in Brisbane: