How does ducted air conditioning work?
A ducted air conditioner is a type of system that distributes cool or warm air throughout each room where an indoor unit is connected, using a network of ducts. These ducts, which carry the air, are typically hidden within the ceiling or floor. The central or outdoor unit—usually placed in an open area—draws in air, then cools or heats it to the desired temperature before sending it through the ducts to each room via vents. The entire system can be controlled using a central thermostat or zoning controls, allowing for individual temperature settings in different areas.
What is the cost of ducted air conditioning in Australia?
Ducted air conditioning is a premium whole-home solution, and pricing reflects the scale and complexity of the system. As a general guide for Australian homes, a small ducted system for a 2–3 bedroom home typically starts from around $5,000–$8,000 AUD (supply and installation). A medium system for a 3–4 bedroom home generally ranges between $8,000–$12,000 AUD, while a large system for a 4–5 bedroom home or commercial space can range from $12,000–$20,000 AUD or more depending on the number of zones, ceiling cavity access, brand selected, and installation complexity. Key factors that influence the final price include the total floor area, number of zones or rooms being serviced, ducting length and layout, and whether you are installing into a new build or retrofitting into an existing property. Eligible homeowners may also be able to offset a portion of the cost through government rebate schemes such as the Victorian Energy Upgrades (VEU) or NSW Energy Savings Scheme (ESS). Contact Astra Green Solutions at 1300 321 786 for a free, no-obligation quote tailored to your property.
What is the difference between ducted air conditioning and a multi split system?
Ducted air conditioning uses a single central unit to distribute air through ducts hidden in the ceiling or walls, making it ideal for cooling or heating an entire home or large space with a seamless, clean look. In contrast, a multi split system connects multiple indoor units to one outdoor unit, allowing you to control the temperature in individual rooms separately. While ducted systems offer consistent whole-home comfort, multi split systems are more suitable for targeted climate control in specific areas. Your choice depends on your layout, preferences, and budget.
How much does ducted air conditioning installation cost?
Installation costs for a ducted air conditioning system in Australia vary depending on several key factors, including the size and layout of your property, the number of zones required, ceiling cavity access, and whether you are installing into a new build or an existing home. As a general guide, installation labour for a standard residential ducted system typically ranges between $1,500–$4,000 AUD on top of the system supply cost, though more complex retrofits in existing homes with limited ceiling access may require additional work. The total installed cost — system plus labour — for most Australian homes falls in the $6,000–$18,000 AUD range depending on the above variables. At Astra Green Solutions, we provide fully transparent, itemised quotes with no hidden fees. Our experienced technicians assess your property thoroughly before providing a final price, ensuring there are no surprises on installation day. Call us on 1300 321 786 or request a free quote through our website to get started.
How long has Astra Green Solutions been supplying and installing ducted air conditioning?
Astra Green Solutions has been proudly supplying and installing ducted air conditioning systems across Australia for over 10 years. Throughout that time, we have grown to become one of Australia’s most trusted providers of energy-efficient home climate solutions, completing thousands of installations across Victoria, New South Wales, and Canberra ACT. Our decade-plus of hands-on industry experience means we have encountered and resolved every kind of installation challenge imaginable — from compact inner-city apartments to large rural properties — giving our customers the confidence that comes with working with a truly seasoned team. We have built our reputation through consistent quality, professional workmanship, and a genuine commitment to customer satisfaction — values that have earned us recognition as a leading provider under programs like Solar Victoria, Victorian Energy Upgrades (VEU), and the NSW Energy Savings Scheme (ESS). To read what our customers say about us, visit the reviews section on our website.
What are the cleaning and maintenance tips for a ducted air conditioning system?
Keeping your ducted air conditioning system well-maintained is essential to ensuring it runs efficiently, lasts longer, and continues to deliver consistent comfort throughout your home or business. Here are the key maintenance steps to follow. Filter cleaning is the most important routine task — ducted AC filters should be cleaned every 4 to 6 weeks during heavy use periods to prevent dust buildup that restricts airflow and forces the system to work harder. Vent and grille inspection should be done every few months to ensure supply and return air vents are unobstructed by furniture, curtains, or debris. Annual professional servicing is strongly recommended and should include a full inspection of the ductwork for leaks or damage, refrigerant level checks, coil cleaning, thermostat calibration, and a complete system performance test. Zone damper checks should be part of your annual service to ensure motorised dampers are opening and closing correctly, as a faulty damper can cause uneven temperature distribution across your zones. Astra Green Solutions offers comprehensive maintenance and servicing packages for all ducted systems we install. Book a service online or call us on 1300 321 786.
Does ducted air conditioning provide heating as well as cooling?
Yes — all ducted air conditioning systems supplied by Astra Green Solutions are reverse cycle systems, meaning they provide both heating and cooling from the same central unit. This makes a ducted system a true whole-home climate solution that eliminates the need for separate heating systems such as gas ducted heating, electric panel heaters, or wood-burning fireplaces. In reverse cycle heating mode, the system extracts heat energy from the outside air — even in cold winter conditions — and distributes warm air evenly throughout every room via the duct network. This process is far more energy-efficient than conventional electric resistance heating, typically delivering 3 to 5 units of heat energy for every 1 unit of electricity consumed. For Australian homeowners in cities like Melbourne and Canberra where winters can be harsh, a reverse cycle ducted system offers one of the most comfortable and cost-effective year-round heating and cooling solutions available. Many customers choose ducted specifically because it replaces both their old air conditioning and gas heating in a single, unified system.
What is zoning in a ducted air conditioning system and how does it work?
Zoning is one of the most valuable features of a modern ducted air conditioning system and one of the key reasons homeowners choose ducted over other system types. A zoned ducted system divides your home into separate areas or “zones” — typically individual rooms or groups of rooms — each of which can be independently controlled for temperature and airflow. This is achieved through motorised dampers installed within the ductwork that open or close to direct conditioned air only to the zones that need it at any given time. For example, during the day you might only cool the living area and kitchen while the bedrooms are closed off, and at night reverse this for the sleeping areas — significantly reducing energy consumption compared to conditioning the entire home all day. Most modern ducted systems support 6 to 8 zones in a typical residential installation, controlled via a central wall controller or smartphone app. At Astra Green Solutions, our technicians design the zoning layout of every ducted installation based on your home’s floorplan, your household’s daily routines, and your energy efficiency goals.
Is ducted air conditioning suitable for an existing home, or only new builds?
Ducted air conditioning can absolutely be installed in existing homes — it is not limited to new builds. However, retrofitting a ducted system into an existing property does require careful planning and assessment of your ceiling cavity or underfloor space, as this is where the ductwork runs. Homes with accessible roof cavities are generally well-suited to ducted retrofits, while properties with limited ceiling access, concrete slab ceilings, or multi-storey configurations may require a more detailed design approach. In some cases where ceiling access is restricted, slim-duct or underfloor ducted systems can be used as an alternative pathway. At Astra Green Solutions, our consultants will conduct a thorough site assessment of your property before recommending whether a ducted system is the right fit or whether an alternative such as a mini VRF or multi-split system might be more practical and cost-effective for your specific situation. We service existing homes across Victoria, NSW, and Canberra ACT.
How long does a ducted air conditioning system last?
A professionally installed and regularly maintained ducted air conditioning system can be expected to last between 15 to 20 years in most Australian homes. The longevity of the system depends on several factors, including the quality of the unit and components, how frequently it is used, the local climate, and how consistently it receives professional servicing. The ductwork itself — when properly sealed and installed — can last the lifetime of the home if kept free from moisture damage and rodent interference. Units from premium brands such as Daikin, Actron Air, and Midea, which are part of the Astra Green Solutions range, are engineered for long-term durability and backed by manufacturer warranties. To maximise the lifespan of your ducted system, we recommend annual professional servicing combined with regular filter cleaning every 4–6 weeks during peak usage periods. Systems that are well-maintained not only last longer but also retain their energy efficiency — ensuring your electricity bills remain low throughout the unit’s operational life.