Ducted vs Split System Cost Comparison in Melbourne (2026)
In Melbourne the ducted-versus-split choice is shaped by the cold winter, because whole-home ducted reverse-cycle heats the house as well as cools it.
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 Melbourne
The ducted-versus-split decision in Melbourne is shaped as much by heating as cooling, because the cold winter means a reverse-cycle system earns its keep year-round. Ducted reverse-cycle warms and cools the whole house through one central unit and ceiling ducts, giving even, whole-home comfort that suits a cold climate where you want the whole house warm, while split systems heat and cool room by room at a far lower install cost. The trade-off is whole-home comfort and a hidden system versus cheaper, targeted room control.
In Melbourne the heating need tips many larger homes toward ducted, because warming the whole house through a long, cold winter is more comfortable with a zoned ducted system than a split in each room, and the city's history of ducted gas heating means many homes already have ductwork. A smaller home, an apartment, or one where only the living area and a bedroom need conditioning is well served by splits, which also let an unused room stay off. Melbourne's double-brick period homes can be awkward to retrofit with ducts, nudging some toward splits. Competitive trade labour just below Sydney's helps the ducted install cost.
Both systems are licensed to install: a licensed refrigeration or ARC-certified technician handles the refrigerant and a licensed electrician the wiring, under the Victorian Building Authority for the electrical side. Ducted is the bigger job through the roof space. For a Melbourne home, the clearest way to make the ducted-versus-split decision is whole-home year-round comfort for the cold winter versus lower-cost room-by-room heating and cooling.
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
Does Melbourne's winter favour ducted or split?
The heating need tips many larger homes toward ducted reverse-cycle, because warming the whole house through a long, cold winter is more comfortable with a zoned ducted system than a split in each room, though smaller Melbourne homes suit splits.
Are period homes harder to duct in Melbourne?
They can be. Melbourne's double-brick Victorian and Edwardian period homes can be awkward to retrofit with ceiling ducts, which nudges some owners toward split systems that need only a wall penetration per room rather than whole-house ductwork.
When do splits suit a Melbourne home?
When only part of the home needs conditioning: a smaller home, an apartment, or one where only the living area and a bedroom need heating and cooling is well served by splits, which also let an unused room stay off to save power in Melbourne.
Do I need a licence to install either in Melbourne?
Yes. Both are licensed: a refrigeration or ARC-certified technician handles the refrigerant and a licensed electrician the wiring, under the Victorian Building Authority for the electrical side, whether ducted or split.