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Updated monthlyBrisbane ducted price guide

Ducted air conditioning
cost in Brisbane

Ducted air conditioning costs $9,000–$15,500 installed in Brisbane, single-storey zoned systems from $9,000, two-storey systems from $12,200, with roof access and zone count driving the spread.

Ducted quotes for Brisbane

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Brisbane ducted installed price range

Like-for-like changeover (ducts reused)
$9,000–$12,300
New ducted, single storey, zoned
$9,000–$12,200
New ducted, two storey, zoned
$12,200–$15,500

Installed prices, unit + standard back-to-back installation. Shared scale.

Real quote data

What Brisbane homeowners pay for ducted

JobInstalled priceSuits
Like-for-like changeover (ducts reused) $9,000–$12,300 Existing ducted home, old unit failed
New ducted, single storey, zoned $9,000–$12,200 3-bed single-storey with roof access
New ducted, two storey, zoned $12,200–$15,500 4-bed two-storey family home

Full local pricing across all system types on the Brisbane cost guide; national ducted detail on the ducted price guide.

Cost drivers

What moves a Brisbane ducted quote

Roof cavity access

The single biggest labour variable. Generous, clear cavities install fast; tight, trussed or insulated-panel roofs add days. Identical floor plans quote differently street to street because of it.

Zone count and controls

Each zone adds motorised dampers, wiring and controller capability. Day/night zoning is the value sweet spot; individual-room zoning with smart control is where quotes climb fastest.

A hot roof space works ducts hard

A Brisbane ceiling cavity hits serious temperatures in summer. Duct insulation quality matters more here than down south, ask what R-rating is being quoted.

Queenslanders and slab homes differ

High-set timber homes give easy access; slab-on-ground brick needs more planning for returns and runs. Same suburb, genuinely different quotes.

Brisbane ducted cost questions

How much does ducted air conditioning cost in Brisbane?
$9,000–$15,500 installed for most Brisbane homes. Single-storey zoned systems run $9,000–$12,200; larger two-storey homes run $12,200–$15,500. Roof cavity access and zone count set where you land, the unit itself is typically only 40–50% of the price.
Does ducted cope with Brisbane humidity?
Yes, refrigerated ducted dehumidifies as it cools, which is exactly what Brisbane summers need. The design detail that matters is sizing for humid heat and insulating ducts properly in a hot roof space, both worth asking about explicitly when you compare quotes.
Is ducted cheaper if the house already has ducts?
Usually, and by a lot: a like-for-like changeover reusing sound ductwork runs about $9,000–$12,300 in Brisbane, skipping most of the labour. Get the ducts inspected first, old leaky runs can eat the saving in running costs and are sometimes worth replacing anyway.
Ducted or multiple splits, which is right for my home?
For 1–3 rooms, splits win on install and running cost. From 4+ daily-use rooms, ducted becomes competitive per room and wins on whole-home coverage and aesthetics. Our split vs ducted calculator runs both totals for your home in thirty seconds, free, no email.
How long does a ducted install take in Brisbane?
1–2 days on site for a straightforward single-storey install, 2–3 days for two-storey or complex zoning, after a proper site visit and quote, ducted is never priced accurately over the phone. In peak summer, add 2–4 weeks of queue before the crew arrives.

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