Air Conditioning Installation Cost, Brisbane

Updated 2026-08-14 · Register QBCC

Air conditioning in Brisbane is quoted three very different ways, and the gap between them is large: a single split system in a bedroom is a A$1,200–2,400 job, a bigger reverse-cycle split for an open-plan living area runs A$2,800–4,800, and ducting a whole single-storey home lands at A$12,000–20,000. Which band you fall into depends less on the brand than on the unit's capacity, how far the refrigerant pipe has to run, and what your house is built on. One thing the sticker price never shows: a domestic install can touch three separate licensing systems — an ARCtick Refrigerant Handling Licence for anyone who works on the refrigerant, a licensed electrician for the hard-wired connection, and a QBCC contractor's licence once the value of the work passes A$3,300. This guide breaks down the real 2026 cost bands for Greater Brisbane and what moves a quote within them.

Costs at a glance

Ranges reflect quotes observed locally — not national averages, not advertised "from" prices.

Service	Typical range (A$)
Split system, bedroom (~2.5–3.5kW), supply + install Based on Canstar Blue's national supply-and-install guide (unit $600–$2,800 + install $600–$800); simple back-to-back Brisbane installs sit at the lower end.	A$1,200 — A$2,400
Split system, open-plan living (~7–8kW reverse-cycle), supply + install Based on Amplus Electrical & Air's published Brisbane and Redlands install pricing (ARCtick L183747, updated July 2026), which puts a 7.0–8.0kW unit for large open-plan living at $2,900–$4,500 fully installed; the higher-capacity unit plus longer pipe runs pushes above the entry-level split band, and brand and inverter efficiency drive the spread.	A$2,800 — A$4,800
Ducted reverse-cycle, whole home (single-storey 3–4 bed) Based on Canstar Blue's national ducted guide ($9,000–$20,000 by home size); two-storey homes, more zones, or ducting a stumped timber house sit at the top or above.	A$12,000 — A$20,000
Add a room (extra split head, or extend ducting to one room) Based on Amplus Electrical & Air's Brisbane and Redlands pricing (ARCtick L183747) — each extra indoor head on a multi-head system adds $1,000–$1,500, and a standalone 2.5–3.5kW split for one room runs $1,400–$2,600 fully installed, which sets the top of this range — alongside Wahoo Air Conditioning (QBCC 1168 770), which puts ducted zoning at $500–$1,500 per zone, setting the floor. No Brisbane installer publishes a rate for retrofitting a duct run and outlet into an existing system specifically, so this range is built from the closest priced equivalents: adding a head, adding a zone, or adding a standalone split.	A$500 — A$2,600
Annual service / clean (split system, per indoor head) Based on two Brisbane operators' own published price lists: AH Airconditioning & Electrical (Morningside, ARCtick licensed) charges from $297 inc GST for a full service on a single wall-mounted split and from $149 for each additional head on the same visit, while Air Con Clean (Brisbane, Logan, Redcliffe) lists a basic clean at $109 + GST and a standard steam clean at $179 + GST. The subtropical humidity and mould load make an annual clean — filters, coil, condensate drain — genuinely worthwhile before summer; a full strip-and-steam clean ($289 + GST and up) runs above this range.	A$120 — A$300

Split vs ducted: the three cost bands

Most Brisbane homes start with split systems — one outdoor compressor feeding one or more indoor 'heads'. A bedroom-sized unit (roughly 2.5–3.5kW) supplied and installed is A$1,200–2,400, with a simple back-to-back install (indoor and outdoor units on opposite sides of the same wall) sitting at the bottom of that band. Step up to an open-plan living or kitchen-dining area and you need a 7–8kW reverse-cycle head; that job is A$2,800–4,800, because the larger unit costs more and the pipe run is usually longer. Ducted reverse-cycle is a different category entirely: a concealed indoor unit in the roof space pushes conditioned air through ducts to ceiling vents in every room, zoned so you can run only the rooms you're using. For a single-storey 3–4 bedroom home that's A$12,000–20,000 supplied and installed. A rough rule for a whole house: once you're past three or four splits, ducted starts to make sense on both comfort and, eventually, cost.

What moves a Brisbane quote up or down

Within each band, a few Brisbane-specific things decide where your quote lands. Pipe run is the big one: a back-to-back install is cheap, but if the outdoor unit has to go around the house, up a wall, or across a roof, materials and labour climb. House construction matters even more for ducted — a low-set brick home on a slab is straightforward, but ducting a high-set timber 'Queenslander' (the classic Brisbane house raised on stumps, with the living level up one storey) means working in tight roof spaces and sometimes running ducts through the underfloor, which is why those jobs sit at the top of the A$12,000–20,000 band or above. Two-storey homes and extra zones do the same. Unit choice drives the rest: a premium inverter model with better efficiency and quieter operation costs more up front than an entry-level unit of the same capacity. Adding air conditioning to just one more room later — a standalone split head, or extending an existing ducted system with a new zone — is a A$1,500–4,000 job on its own, so it pays to settle your full layout before the first install rather than retrofitting room by room.

Who is legally allowed to install it — three licences, three registers

This is the part cheap quotes skip. Three licensing systems can apply to one domestic install, and they are issued by three different bodies.

Refrigerant. Any air conditioner that contains refrigerant can only be installed or worked on by someone holding a Refrigerant Handling Licence issued by the Australian Refrigeration Council (ARCtick) — the licence must be held by any person carrying out work in relation to refrigeration and air conditioning equipment, including installing and commissioning it. It is federal, it applies at any job value and any building class, and it is not in the QBCC register.

Electrical. Hard-wiring the unit into your switchboard must be carried out by a licensed electrician. Electrical work is licensed under the Electrical Safety Act 2002 through the Electrical Safety Office, and QBCC Regulation 2018 sch 1 s 20 expressly excludes it from building work — a third register again.

QBCC. Installing fixed air conditioning is building work: QBCC Act 1991 sch 2 defines building work to include "the provision of lighting, heating, ventilation, air conditioning, water supply, sewerage or drainage in connection with a building". It is not caught by the any-value "mechanical services" category, on two independent grounds: the QBCC Act’s own definition of mechanical services work expressly does not include "installation of a single head split system" (sch 2, para (i)), and QBCC Regulation 2018 sch 1A takes work carried out on a class 1a or class 10 building out of being mechanical services work at all. Mechanical services licensing is about commercial and class 2 to 9 work, which is why plenty of installers legitimately hold one. So the ordinary threshold governs: at or below A$3,300 no QBCC licence is required (Reg sch 1 s 2), and above it the work must be carried out by a contractor holding a QBCC licence of the appropriate class (Act s 42). Against the bands priced on this page: a whole-home ducted job is comfortably above the line, a living-area split straddles it, and a bedroom split usually sits below — so ask which side of A$3,300 your quote falls on.

A genuine installer holds or brings in whichever of these the job requires. Before you book, ask for the ARCtick licence number and check it; on anything over A$3,300, ask for the QBCC licence too. Both checks are free, and between them they rule out the operators who make the headline price look too good.

Running it in a humid city: the yearly clean

Brisbane's subtropical summers are humid, and that humidity is exactly what makes an annual clean worth budgeting for. Over a season, filters, the indoor coil and the condensate drain collect dust, moisture and mould — which cuts efficiency (you pay more to cool) and can push a musty smell and spores back into the room. A professional service and clean of a split system is A$120–300 per indoor head, best done before the summer load hits. If you have several heads or a ducted system with multiple zones, that adds up, so factor it into the running cost when you choose between splits and ducted — a ducted system is one indoor unit to service, whereas five splits are five cleans. It's genuine maintenance, not an upsell: in this climate a neglected unit grows mould faster than it would in a dry southern city.

Common questions

Is a split system or ducted cheaper for a three-bedroom Brisbane home?

It depends on how many rooms you actually want conditioned. If you only need the main living area and one or two bedrooms, individual splits are far cheaper up front — a living-area head at A$2,800–4,800 plus bedroom splits at A$1,200–2,400 each. Ducting the whole single-storey home is A$12,000–20,000. Ducted wins on whole-home comfort, a cleaner look, and being one system to service rather than several; splits win on lower upfront cost and running only the room you're in. Past three or four rooms, the gap narrows.

Can a handyman install my air conditioner to save money?

No — not legally, and not safely. The legal checklist for a domestic install is three items, not two. Anyone working on a unit that contains refrigerant must hold an ARCtick Refrigerant Handling Licence, at any job value. The hard-wired electrical connection must be made by a licensed electrician under the Electrical Safety Act 2002. And installing fixed air conditioning is building work under QBCC Act 1991 sch 2, so once the value of the work exceeds A$3,300 it must be carried out by a contractor holding a QBCC licence of the appropriate class (s 42); at or below A$3,300 that third licence is not required (QBCC Regulation 2018 sch 1 s 2). A handyman clears none of the three, and the saving is not real once you weigh the cost of redoing a bad job.

Why is my ducted quote above the A$12,000–20,000 range?

The A$12,000–20,000 band is for a single-storey 3–4 bedroom home. Two-storey homes, extra zones, or ducting a high-set timber 'Queenslander' with tight roof access all push a quote to the top of that band or above. If your quote is higher, ask the installer to itemise what's driving it — capacity, number of zones, and duct routing are the usual reasons.

How much to add air conditioning to one more room later?

Budget A$1,500–4,000 for one room done on its own — a standalone split head sits at the lower end, while extending an existing ducted system with a new zone runs higher. Because a separate later job carries its own call-out and setup, it's usually cheaper to plan your full layout before the first install than to retrofit room by room.

Sources & when we checked them

← All Brisbane Air Conditioning