Ducted vs Split System Cost Comparison in Brisbane (2026)
In Brisbane the ducted-versus-split choice weighs whole-home cooling against the cost of running it through a long subtropical summer.
Single wall split
- Typical installed cost
- $1,800 to $4,200 supplied and installed for a 2.5 to 7.1 kW head
- Annual running cost
- $180 to $450 a year for a living area used most evenings
- Expected lifespan
- 10 to 15 years, often 12 in coastal air
- Install time
- Half a day, usually one crew, no ceiling work
- Maintenance
- Wash the filters every few months, pro service every 2 to 3 years
- Best climate fit
- Anywhere. The default choice in mild coastal and apartment settings
- Resale impact
- Neutral. Buyers expect it, they do not pay extra for it
Multi-split (3 to 5 heads)
- Typical installed cost
- $6,500 to $14,000 for three to five indoor heads on one or two outdoor units
- Annual running cost
- $450 to $1,000 a year, lower than ducted if you only run one or two heads
- Expected lifespan
- 10 to 15 years, but heads fail individually rather than all at once
- Install time
- Two to four days depending on pipe runs and wall penetrations
- Maintenance
- Filters per head, so more units to clean, roughly $250 a service visit
- Best climate fit
- Strong everywhere. The only realistic option in homes with flat or no roof cavity
- Resale impact
- Mildly positive, especially in apartments and renovated terraces
Ducted reverse cycle
- Typical installed cost
- $9,000 to $18,000 for most 3 to 4 bed homes, $17,000 to $25,000+ double storey
- Annual running cost
- $600 to $1,300 a year with zoning, materially more without it
- Expected lifespan
- 12 to 20 years on the unit, ductwork often outlasts two units
- Install time
- Three to five days, plus electrical and possible switchboard work
- Maintenance
- Annual filter and coil service around $250 to $400, duct checks every few years
- Best climate fit
- Best in hot dry inland and cold southern climates where whole-home load is real
- Resale impact
- The clearest positive of the three, frequently named in listing copy
What a ducted vs split system cost comparison costs in Brisbane
The ducted-versus-split decision in Brisbane weighs even, whole-home cooling against the cost of providing and running it through a long subtropical summer. Ducted cools the whole house from one central unit through ceiling ducts and hides away, which suits a large home wanting consistent comfort in the humidity, but costs far more to install and, run unzoned across the long cooling season, draws a lot of power. Split systems cool room by room far more cheaply and let a household cool only where it is, which can be the smarter spend where cooling runs for months.
The classic Queenslander complicates the choice, because its roof space, timber structure and sometimes limited ceiling cavity can make a ducted retrofit harder and costlier, so many older Brisbane homes add splits room by room instead. A sealed modern home suits ducted well. The humidity favours whichever system is sized and run to dehumidify properly, and zoning a ducted system is essential here to avoid cooling empty rooms through a muggy summer. Storm-prone weather means the outdoor unit siting matters. Service labour near the national baseline keeps both installs a touch cheaper than the southern capitals.
Both are licensed to install: a licensed refrigeration or ARC-certified technician handles the refrigerant and a licensed electrician the wiring, with licensing in Queensland under the state regulator. Ducted is the larger job through the roof. For a Brisbane home, the clearest way to make the ducted-versus-split decision is whole-home cooling with zoning for the long subtropical summer versus cheaper, targeted splits, with the Queenslander's structure often pointing to splits.
Compare against the national picture: Ducted vs Split System Cost Comparison in Australia →
Ducted vs Split System Cost Comparison in other cities
Frequently asked questions
Ducted or split for a Brisbane home?
It weighs whole-home cooling against running cost through a long subtropical summer: ducted cools the whole house evenly but costs far more and draws a lot of power unzoned, while splits cool room by room cheaply, which can be the smarter spend in Brisbane.
Is ducted harder to fit in a Queenslander?
Often. A Queenslander's roof space, timber structure and sometimes limited ceiling cavity can make a ducted retrofit harder and costlier, so many older Brisbane homes add split systems room by room instead.
Is zoning important for Brisbane ducted?
Yes. Zoning a ducted system is essential in Brisbane to avoid cooling empty rooms through a muggy summer, because the long subtropical cooling season makes unzoned whole-house cooling an expensive way to run the system.
Do I need a licence to install either in Brisbane?
Yes. Both are licensed: a refrigeration or ARC-certified technician handles the refrigerant and a licensed electrician the wiring, with licensing in Queensland under the state regulator, whether ducted or split.