Ducted Air Conditioning Cost in Adelaide (2026)
Adelaide's dry heat and lower labour make ducted cooling affordable, with stone homes the awkward case.
Your ducted air conditioning details
Below the typical range for this service.
💰 Ways to save
- Insist the return-air grille is properly specced — under-sized return air is the number-one corner-cut and it starves the system, killing efficiency from day one. And watch any 'electrical if required' line: get the switchboard and 3-phase scope locked in writing, or you'll get hit mid-job (a 3-phase upgrade for a 15 kW+ system is $1,000–$2,000).
- Owner-supplying the unit can save 15–30%, but most installers then void the labour warranty on it — usually not worth the trade-off.
How we estimate this
A fully installed ducted system in 2026 mostly lands $9,000–$18,000, or roughly $80–$120 per square metre. A small 1–2 bed (7–10 kW, two zones) runs $7,000–$12,000; a typical 3–4 bed (10–18 kW, three to four zones) $10,500–$18,000; and a large 5-bed or double-storey home $17,000–$25,000+. Double-storey work carries inter-floor ductwork that alone adds $3,000–$4,000.
Pricing reviewed: June 2026.
What a ducted air conditioning costs in Adelaide
Like Perth, Adelaide's hot, dry summers make ducted evaporative cooling a viable and cheaper-to-run alternative to refrigerated ducted air, so the two genuinely compete, with refrigerated ducted reverse-cycle winning where winter heating or humidity control matters. The city's lower labour rates make the install one of the more affordable of the mainland capitals for a comparable system, and much of the housing is accessible single-storey stock that is straightforward to duct through the roof.
The older stone cottages of the inner suburbs are the awkward case, with solid masonry walls and no ducting cavity making a ducted retrofit involved and sometimes pushing owners toward wall-mounted splits. Reactive clay has little bearing on a roof-run ducted system. A licensed electrician and refrigerant-handling licence are required. For an Adelaide ducted system, the cheaper labour and the evaporative option make it one of the better-value capitals, with the home's construction the main variable.
Compare against the national picture: Ducted Air Conditioning Cost in Australia →
Ducted Air Conditioning Cost in other cities
Frequently asked questions
How much does ducted air conditioning cost?
Mostly $9,000–$18,000 installed in 2026 — about $80–$120/m². A small home runs $7,000–$12,000, a 3–4 bed $10,500–$18,000, and a large or double-storey home $17,000–$25,000+.
Is ducted worth it over splits?
Ducted gives whole-home comfort and a cleaner look, but without good zoning it costs more to run than multi-splits. Zoning cuts its consumption 20–40% by only conditioning rooms in use, which is what makes it competitive.
What's the most common corner-cut to watch for?
Under-specced return air. A too-small return grille starves the system and wrecks efficiency from day one, so make sure it's sized properly. Also pin down the electrical scope — a 3-phase upgrade can add $1,000–$2,000.