Ducted air conditioning in Byron Bay

Ducted air conditioning in Byron Bay uses one central indoor unit, usually in the roof cavity, connected by insulated ducts to ceiling vents in each room, with one outdoor unit outside. A published Byron Bay price guide puts a basic supplied and installed system at $8,400 to $14,700 and a premium or zoned system at $12,600 to $23,100. Whether your house can take it comes down mostly to the roof space.

Every quote arranged through this site comes from an independent local installer, who inspects the roof, designs the system and carries out the installation. The about page sets out how enquiries are passed on.

Is ducted the right type for your house?

The NSW Government’s air conditioner advice describes ducted systems as using a central unit to control the temperature of the building. That suits homes where most rooms need cooling and the owner wants no wall heads at all. People usually ask about ducted when:

• the house has four or more bedrooms plus a large living area
• several wall splits would clutter the walls or need several outdoor units
• the home is being renovated and the ceilings or roof are already open
• an existing ducted system is old, noisy or no longer reaching every room
• a hinterland house has bedrooms spread along a long hallway

If only one or two rooms are the concern, a wall split is often the cheaper answer. The split versus ducted comparison puts the three system types side by side for local house types.

Does the roof cavity have room for ducting?

This is the first thing an installer checks, and it can rule ducted out on the spot. The indoor unit is a large box that has to be lifted into the roof, sit level on a platform, and leave room for someone to reach the filter and electrical panel later. The ducts are bulky flexible tubes that need to run without being squashed or kinked.

Roof feature	What it means for ducted
Pitched roof with good height at the centre	Usually workable; the unit sits near the middle and ducts fan out
Low-pitch or skillion roof	Little or no space; ducted may be impractical
Raked or cathedral ceilings in living areas	Those rooms may need floor or wall outlets, or a separate split
Manhole size and position	The indoor unit must fit through it, or a larger access is cut
Insulation and sarking	Ducts are laid over or through it; damaged insulation should be replaced

If you live in an older beach cottage or a house with a low roof line, ask for a roof inspection before you settle on ducted.

What about raised homes with space underneath?

Some hinterland and older coastal houses sit up on stumps or posts. Running ducts under the floor to floor vents is something some installers will consider and others will not. Ask the installer directly whether under-floor routing is suitable for your house, how the ducts would be protected from moisture and pests underneath, and what that does to the price.

How does zoning work, and is it worth it?

Zoning splits the house into areas you can switch on and off from the controller, using motorised dampers in the ducts. The usual split is a living zone and a bedroom zone, sometimes with a third for a study or a guest wing.

Zoning matters because you rarely need the whole house cool at once. In the afternoon the living areas need it; at night only the bedrooms do. Without zones, the system pushes cold air through every vent and works harder than it needs to. The Byron Bay price guide also suggests asking whether a quote includes zoning, because a cheaper unzoned quote is not comparing like with like.

What else goes into a ducted design?

A careful installer will design these parts rather than guess at them, and should explain each in the quote:

1. Capacity. The system is sized for the floor area, ceiling height, glass and the zones that will run at the same time.
2. Supply vents. One or more ceiling outlets per room, placed so air reaches the bed or the couch rather than a wall.
3. Return air grille. A large grille, usually in a hallway ceiling, draws air back to the unit. It must be big enough and kept clear, and it holds the main filter.
4. Duct sizes and runs. Long or undersized runs leave the far bedrooms warm.
5. Controller. A wall controller in the hallway or living area, with zone buttons and timers; some offer app control.
6. Outdoor unit position. Ducted outdoor units are larger and heavier than split units, so they need a solid slab or base, clearance for airflow and room for service access.
7. Drainage. The indoor unit in the roof needs a drain line that falls to a proper outlet, plus a safe tray under it in case the line blocks.

How much does ducted air conditioning cost in Byron Bay?

These are published Byron Bay bands that include GST. They are a guide to the range, not a quote for your house.

System	Price range
Ducted system, basic, supplied and installed	$8,400 to $14,700
Ducted system, premium or zoned, supplied and installed	$12,600 to $23,100

A ducted quote moves with the floor area, the number of zones and outlets, how hard the roof is to work in, and the distance from the indoor unit to the outdoor unit. A full switchboard or a long electrical run is another common extra. The Byron Bay cost guide puts ducted bands next to every other job type. If you have a house plan handy, you can ask for a ducted system quote and attach it.

What should you ask before accepting a ducted quote?

Ducted quotes are harder to compare than split quotes because two installers can design the same house quite differently. Put the same questions to each one:

• What capacity is the system, and how was it worked out for this house?
• How many zones, and which rooms are in each one?
• How many supply outlets go in each room, and what size are the ducts?
• Where will the return air grille go, and how big is it?
• Where will the outdoor unit sit, and what base or slab is included?
• Is the switchboard work, the isolator and any new circuit included or priced separately?
• Who removes and disposes of an old system, if there is one?
• What warranty covers the equipment, and what covers the installation work?

A quote that answers all of these in writing is easier to hold an installer to if something is missed on the day.

Which licences apply to a ducted install?

Whoever fits a ducted system has to be licensed in NSW for refrigeration and air conditioning, and the NSW Government licence page says that licence also covers the associated electrical wiring. The same page notes that duct work outside a dwelling does not need the licence, but connecting the fan coil, the refrigerant pipes and the power does fall under licensed work.

Ducted homes in Bangalow and the hinterland

Byron Shire’s rural-residential land sits in the hinterland, including the small townships of Bangalow, Ewingsdale and Mullumbimby, according to the shire’s community profile. Larger hinterland homes on acreage are the kind of house where ducted is often discussed, because bedrooms can be well apart from the living areas. Distance matters for these jobs: installers may charge travel, and the outdoor unit may sit far from the switchboard. See the Bangalow area page for local detail.

Once a ducted system is in, its filters, return air grille and drain need regular attention. The air conditioner servicing page explains what a ducted service covers.

Next step

To get a ducted system priced, send your ducted air conditioning enquiry with your suburb, the number of bedrooms and living areas, the approximate floor area, whether the house is single or double storey, and a photo taken through the manhole showing the roof space. Say which rooms you want in each zone, and mention any raked ceilings or a raised floor.

Send a job enquiry