How much does air conditioning installation cost in Brisbane?
Air conditioning installation in Brisbane runs from about $1,000 for a small single-head split to $22,000 for a premium zoned ducted system in 2026 — supply-and-install, GST inclusive. The number you land on is set by system type and cooling capacity.
This is a deep-dive on air conditioning installation prices in Brisbane. For the full Brisbane air conditioning pricing picture across every system and job type — including running costs and our verified-installer connection — see the main Brisbane air conditioning cost guide →
Installation cost by system type
What you pay to install air conditioning in Brisbane is driven almost entirely by the type of system and how much cooling capacity it has. These are Brisbane supply-and-install prices, GST inclusive, re-verified against 90+ Australian sources.
| Service | Low | Typical | High |
|---|---|---|---|
| Single-head split — 2.5 kW | $1,000installed | $1,400 | $1,900 |
| Single-head split — 5 kW | $1,500installed | $2,000 | $2,500 |
| Single-head split — 7 kW | $2,500installed | $3,000 | $3,500 |
| Single-head split — 9 kW | $3,000installed | $3,500 | $4,000 |
| Multi-split (2 heads) | $4,000installed | $5,500 | $7,500 |
| Multi-split (4 heads) | $7,000installed | $7,500 | $8,000 |
| Ducted system (basic) | $7,500installed | $9,000 | $11,000 |
| Ducted system (premium / zoned) | $15,000installed | $18,500 | $22,000 |
A single-head split system is the entry point — one indoor head, one outdoor unit, cooling a single room or open-plan area. Ducted is the top end: hidden ductwork feeding vents through the whole home. Multi-split sits in between, running two to four indoor heads off one outdoor compressor.
What's included in an installation quote
A fair Brisbane install quote should be supply-and-install with no surprises on the day. Expect it to cover the indoor and outdoor units, wall or ceiling mounting brackets, the refrigerant pipe run and drainage, the electrical connection and isolator, commissioning and gas-charge testing, and removal of the old unit where there is one. Ask whether the quoted price is for a standard back-to-back install — if your run is longer or the outdoor unit needs a roof or bracket mount, that is where add-ons appear.
What pushes the Brisbane install price up
Four things move an install quote inside the ranges above:
- Pipe run length — the further the indoor head sits from the outdoor unit, the more refrigerant pipe, cable and labour. A back-to-back install is cheapest.
- Storey and roof access — second-storey heads and outdoor units on tile roofs need more time and safety gear.
- Humidity-spec sizing — Brisbane's humidity means installers often size up capacity so the system isn't run flat-out, nudging you into a higher kW row.
- Back-to-brick vs new build — running pipe and cable through an existing solid-brick wall costs more than a pre-wired new build.
Split or ducted — which install suits your home
If you're cooling one or two rooms, a split system install is far cheaper and simpler. If you want whole-home comfort with a single controller, ducted is the answer — but it's a bigger job and a bigger number. Our Brisbane ducted air conditioning cost guide breaks the ducted option down by home size, and the split system installation cost guide covers back-to-back versus long-run split installs.
How long does installation take?
A single-head split install in Brisbane is usually a half-day job — most are done in three to four hours and you can run the system the same day. A multi-split with two to four heads runs a full day, and a ducted system is a one-to-two-day job because the ductwork has to be threaded through the roof space. Heading into the Brisbane peak (October–February), installers book two to four weeks out, so the install slot — not the hardware — is the bottleneck if you want cooling before summer.
Choosing a licensed installer
Air conditioning installation is licensed work: the electrical connection must be done by a licensed electrician and the refrigerant handling by an ARC-licensed technician. Ask any Brisbane quote for their ARCtick and electrical licence numbers, confirm the price is supply-and-install with old-unit removal included, and make sure the manufacturer warranty is registered in your name. A cheap install that voids the unit warranty is no saving.
Related Brisbane guides
- Ducted system cost — full ducted system prices by home size.
- Split system installation cost — single and multi-head install prices.
- Brisbane air conditioning cost guide — the full city cost guide this deep-dive sits under.
- national air conditioning cost guide — national pricing across every city.
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