how much is ducted air conditioning
Ducted air conditioning for a typical home usually costs somewhere between about $6,000 and $20,000+ installed, with most standard Australian homes landing roughly in the $10,000–$18,000 range depending on size, design and features. Larger or more complex homes, premium brands and advanced zoning can push the price closer to (or above) $25,000.
What “ducted air conditioning” includes
Ducted air conditioning is a central system that cools (and often heats) the whole home through ceiling or floor ducts connected to one indoor unit and an outdoor unit.
Instead of separate wall splits, you get discreet vents in each room and a single controller or smart zoning system.
Typical price ranges
For recent Australian figures, total supply and install costs often fall into these bands:
- Small single-storey home (≈100–150 m², 2–3 bedrooms): about $6,000–$10,000.
- Medium home (≈150–250 m², 3–5 bedrooms): about $10,000–$15,000, often up to $18,000 if you add more zones or higher-end brands.
- Large / multi-storey home (≈250–400 m²+): commonly $15,000–$25,000 or more, especially with complex layouts or a lot of zones.
Some installers quote a broad range like “under $9,000 up to around $20,000” for typical residential installs, which matches the ranges above.
Key factors that change the price
Several drivers explain why one quote is $8k and another is $20k+:
- House size and layout
- Bigger floor area = larger capacity unit + more ducting + more outlets.
- Double-storey and tricky roof spaces add labour and materials.
- Zones and controls
- Simple “whole house on/off” is cheapest.
- Multi‑zone systems (e.g. living vs bedrooms, individual room control) can add roughly 20–30% to costs because of extra dampers, controllers and wiring.
- Brand and efficiency
- Premium brands and high energy‑efficiency models cost more upfront but can reduce running costs.
- Some brands’ high‑efficiency ducted units are reported to run roughly 10–15% cheaper than average per hour.
- New build vs retrofit
- It is often cheaper to install ducted air during construction than to retrofit an existing home because duct runs and unit locations can be planned in from the start.
- Access and location
- Tight roof spaces, heritage homes or city locations with parking/access issues tend to increase labour costs.
- Different cities show slightly different typical bands (for example many guides list around $7,000–$20,000 depending on city and house size).
Running and yearly costs
Beyond “how much is ducted air conditioning” to install, people usually want to know what it costs to run:
- Per‑hour running cost for ducted systems is commonly estimated around $0.50–$1.50 per hour, depending on size and efficiency.
- Annual electricity costs can range widely (several hundred up to around $2,000 per year) depending on climate, thermostat settings and usage.
- A rough guide from service providers suggests small units might add ~$300–$450 per year to bills, medium units ~$400–$550, and large units up to around $600+ with regular use.
Regular servicing (often $150–$300 a year) helps keep efficiency up and prevent bigger repair bills later.
When is it “worth it”?
People on home and renovation forums often frame ducted air as a long‑term comfort upgrade rather than just a gadget:
- For hot or humid climates, whole‑home comfort and better resale appeal can justify the upfront spend compared with multiple split systems.
- If you only ever cool a couple of rooms, good quality split systems are usually cheaper overall, but once you start needing 3–4+ splits, ducted becomes more competitive.
- Zoning plus a smart thermostat and good insulation can make ducted feel like a “set and forget” comfort system rather than something you constantly tweak.
Bottom line: for most standard homes, expect quotes clustered somewhere between roughly $10,000 and $18,000 fully installed, then refine that range based on your house size, number of zones and preferred brand.
Information gathered from public forums or data available on the internet and portrayed here.