The two most common types of residential air conditioning in Sydney — and the question we get asked at almost every quote. Here’s an honest comparison to help you decide.
Split System Air Conditioning
A split system has one indoor unit and one outdoor unit. It conditions one room or open area. Multiple rooms require multiple systems or a multi-head configuration.
- Cost: $1,200–$3,500 installed per unit
- Best for: Apartments, individual rooms, budget-conscious homeowners
- Pros: Lower upfront cost, easy to install, zone control
- Cons: Multiple units needed for whole-home coverage, visible indoor units in each room
Ducted Air Conditioning
A ducted system uses one central unit in the roof space with ducts running to vents in every room. One thermostat controls the whole home, with zone control available.
- Cost: $8,000–$20,000+ installed depending on home size
- Best for: Whole-home comfort, larger homes, new builds
- Pros: Invisible (no units on the wall), consistent temperature throughout, increases property value
- Cons: Higher upfront cost, requires roof space for ductwork
Our Recommendation
For apartments and individual rooms: split system. For whole-home comfort in a house with roof space: ducted. If budget is the constraint, start with split systems in the main living areas and add more over time.
Call Jim on 0416 931 871 for a free site visit and honest recommendation for your home.