
Air Conditioning
Multi-Split & Cassette Systems
One outdoor unit, several rooms, each with its own control. Wall heads or ceiling cassettes, no ductwork required.
A multi-split connects two to five indoor units to a single outdoor unit. You choose the right indoor unit for each room, from a whisper-quiet bedroom head to a high-capacity living-room unit, and control them independently.
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“Unique Technical Services Pty Ltd (Somnath and team), very professional, patient, and knowledgeable. Highly recommend and would use them again without a second thought. Very competitive rates too!!!”
Licensed & insured · ARC L162322 · Rebates handled · Since 2014
Where it works
- Homes without roof space for ducting
- Townhouses and units with limited outdoor space
- Two or three bedrooms plus a living area
- Extensions and granny flats
Why choose a multi-split
- One outdoor unit saves outdoor space and keeps the exterior tidy
- Individual control in every room, so you only run what you need
- Mix indoor unit sizes and styles to suit each space: wall-mounted heads, or ceiling cassette units for open-plan rooms, shops and offices
- No ceiling cavity required, unlike ducted systems
Our process
- Free site visit to measure rooms and plan pipe runs
- Capacity plan so the outdoor unit copes with every head running
- Neat pipework, capped and concealed wherever possible
- Commissioning of every head and a walk-through of the controls
Questions we get asked
- How many rooms can one outdoor unit serve?
- Typically two to five, depending on the brand and the capacity of each indoor unit. We size the outdoor unit so it keeps up when every room is running.
- Is a multi-split cheaper than ducted?
- Usually yes for two or three rooms, and it avoids roof-space work. For a whole house, ducted is often better value. We quote both when it is a close call.


