Two ducted quotes for the same size system can be thousands of dollars apart, and most of the gap is usually in the extras: zones, outlets, double-storey work, roof access and the old heater. This page lists what each extra costs with us, so you can line up any quote against ours item by item.
The quick answer
As at 29 October 2026, our prices for the most common ducted extras in Melbourne, including GST, are: an extra temperature-controlled zone $218, an extra outlet $110, a double-storey home $500, a return-air bypass $220, and the AirTouch 5 expansion board for a 9th zone or more $350. Removing the old gas ducted heater is already included in every package.
Extras and what they cost
| Extra | When you need it | Price inc GST |
|---|---|---|
| Extra temperature-controlled zone | More zones than your package includes. Each zone has its own damper and its own temperature sensor. | $218 |
| Extra outlet | More outlets than your package includes, for example a large open-plan area. | $110 |
| AirTouch 5 expansion board | Only for a 9th zone or more. Up to 8 zones run on the standard controller. | $350 |
| Return-air bypass | Some layouts need one to keep air moving when only a few zones are open. Uses one zone. | $220 |
| Double-storey home | Running ducts to both levels. | $500 |
| Roof-mounted or high outdoor unit | Outdoor unit on the roof or 1.8m or more off the ground, lifting equipment included. | $510 |
| Metal or Colorbond pitched roof | Extra work and fixings for a metal roof. | $510 |
| Outdoor unit air diverter | Where the outdoor unit sits close to a wall or fence. Single fan / twin fan. | $184 / $367 |
| Remove evaporative cooler and dropper | If you have an old evaporative cooler on the roof (you supply matching roof tiles). | $449 |
| Remove a wall split system | Taking out an old split system as part of the job. | $255 |
| 3-phase electrical connection | Only for systems that run on 3-phase power, such as our Daikin 20kW. | $550 |
Prices as at 29 October 2026, including GST. Every price is confirmed at a free in-home design before you commit.
What is already included in every package
- The ducted reverse-cycle system, installed
- AirTouch 5 zoning with a temperature sensor in every zone (4 zones on smaller packages, up to 8 on larger ones)
- Insulated flexible ductwork and the outlets listed for your package
- Removal of your old gas ducted heater
- Standard electrical work on a new circuit
- A free in-home design so the system and zones suit your home
See every package and its installed price on our ducted air conditioning prices page.
How to use this against another quote
Write down how many zones, outlets and temperature sensors each quote includes, then add the extras above to whichever quote has fewer. A quote that looks $1,500 cheaper can end up the same price once you add three zones and a few outlets to match. If you are not sure the quotes are like for like, use our ducted quote checker or send us your quote and we will compare it with ours, free.
Common questions
How much does an extra zone cost on a ducted system in Melbourne?
With us, an extra temperature-controlled zone costs $218 including GST, which covers the zone damper and its own temperature sensor. A 9th zone or more also needs the AirTouch 5 expansion board, which is $350.
Is double storey more expensive for ducted air conditioning?
Yes. We charge $500 extra for double-storey homes, because the ducts have to reach both levels.
Is removing the old gas ducted heater extra?
No. Removing your old gas ducted heater is included in every one of our ducted packages.
Do these extras apply to every home?
No. Most homes only need some of them, and many need none. We confirm exactly what your home needs at a free in-home design, before you commit.