Ducted Air Conditioning Cost Brisbane (2026) — From $11,000
Installer’s price guide for ducted air conditioning install in Brisbane — prices by home size + zone count, what’s included, add-ons, brand pricing.
Quick answer: 3-bed home from $11,000 (12kW, 4 zones). 4-bed from $13,200 (16kW, 5 zones). 5-bed+ from $15,800 (20kW, 6–7 zones). Bulkhead drops add $1,500–$3,000. Inverter recommended for 20–30% lower running cost.
Ducted pricing by home size (Brisbane, fully installed)
| Configuration | Starting from (inc GST) |
|---|---|
| 3-bed home (12kW / 4 zones) | From $11,000 |
| 4-bed home (16kW / 5 zones) | From $13,200 |
| 5-bed home (20kW / 7 zones) | From $15,800 |
| Larger / luxury (20kW+ / 8–10 zones) | From $18,500 |
| Bulkhead drop (shallow cavity) | From +$1,500 |
What’s included
- Indoor unit + outdoor compressor (inverter recommended)
- Ductwork to each zone (flexible duct, insulated)
- Zone motors + dampers
- Return-air grille + filter
- Supply outlets cut into ceiling
- Wall controller
- Refrigerant charge, vacuum, pressure test
- Full commissioning, run-test cool + heat
- 10-year workmanship warranty
- Manufacturer warranty registration (5-yr standard)
Add-ons + condition modifiers
- Bulkhead drop — from $1,500
- Extra zone — $400–$700 each
- Smart WiFi controller — $200–$400
- New electrical circuit — from $480
- Old unit removal — from $250
- Premium brand upgrade (e.g. Daikin Alira X) — +$1,500–$3,000
Brand pricing (4-bed install)
- Daikin inverter ducted — from $13,200
- Braemar refrigerated — from $12,700
- Braemar combo (refrigerated + gas) — from $14,500
- Mitsubishi Electric ducted — from $14,500
- Fujitsu ducted — from $12,800
Common questions
How much does ducted AC cost in Brisbane?
3-bed from $11,000. 4-bed from $13,200. 5-bed from $15,800. Most Brisbane 4-bedrooms end up $13,200–$17,000 inc GST.
What size do I need?
3-bed: 12–14kW. 4-bed: 14–18kW. 5+: 18–24kW. Refined with on-site Manual J sizing calc.
Inverter or non-inverter?
Inverter, always. Pays back $1,500–$2,500 upfront premium in 2–3 years on running cost.
How long does install take?
2–3 days for retrofit. 1–2 days for new builds.
When should I book?
By early October for Christmas-ready. After October lead times stretch to 6–10 weeks.
Is finance available?
Yes — Brighte and Humm offer 0% interest 12–24 months on approval.
AH Air Conditioning · 63 Britannia Ave, Morningside QLD 4170 · ARCtick licensed · 20+ years across Brisbane.