The short version
A ducted system conditions the whole home from one central unit, with air delivered through discreet ceiling vents. A split system conditions one room or area per indoor unit. Neither is universally better — the right choice depends on your home's layout, how many rooms you want to condition at once, and how you use the space day to day.
When ducted makes sense
Ducted air conditioning suits homes where you want even, whole-home comfort and a clean interior look — no wall-mounted units in living areas or bedrooms. Zoning lets you switch off unused areas, and modern systems allow individual room control.
It is often the natural fit for new builds and major renovations, where ceiling space and duct runs can be planned from the start, and for established homes with accessible roof space.
When a split system makes sense
Split systems suit single rooms, open-plan living areas, apartments and homes without usable ceiling space. They are also a practical way to add air conditioning in stages — a living area first, bedrooms later — rather than committing to a whole-home system at once.
Multi-head systems connect several indoor units to one outdoor unit, which keeps the exterior of the home tidier where outdoor space is limited.
Running costs and efficiency
Both system types use reverse-cycle inverter technology and can heat as well as cool. Running cost depends less on the type and more on correct sizing, sensible temperature settings, zoning, insulation and how the home is used. An oversized or undersized system of either type will cost more to run than a correctly matched one.
Not sure which way to go?
The most reliable way to decide is a property assessment: layout, ceiling space, orientation, insulation and how your household actually lives in the home. We assess homes across the Gold Coast, Logan and Brisbane's south, the Tweed Coast and the Northern Rivers — request a free assessment and we'll talk you through the options for your property.