Ducted air conditioning in Hervey Bay
Ducted air conditioning in Hervey Bay is one system for most of the house, not a head on every wall. An indoor unit usually sits in the roof space. An outdoor unit sits outside. Insulated ducts run from the indoor unit to ceiling outlets in the rooms. A return air grille, with a filter, brings air back. A controller on the wall is how you run it. Zoning lets you cool only the areas you are using.
Summers here are long, hot, and humid. A roof space on a January afternoon is a harsh place for equipment. Access, insulation, and a drain that can carry real water all matter more than they do in a mild climate. Salt air near the coast settles on the outdoor unit. We plan a spot you can still clean.
The power supply is electrical work. Best in the Bay holds electrical contractor licence 1511769 for that part.
Who it suits
Ducted suits a home where you want most rooms handled together, and you would rather not see an indoor head in each one. It suits an open living area plus bedrooms, if the roof can take the unit and the ducts. It is a poor fit when the roof space is too tight, when you only ever cool one room, or when you want each room to be a completely separate system.
A split system is the other common choice. This is a plain comparison. It does not say which one costs less to run. Running cost depends on how you use the system, the tariff, and the building. We will not invent a winner.
| Split system | Ducted | |
|---|---|---|
| Rooms covered | The room, or the open space, that one head blows into. Extra rooms mean extra heads. | Most of the house from one system, with an outlet in each room you include. |
| Look inside the home | A head on the wall in each room that is cooled. | Ceiling outlets, a return air grille, and a controller. The indoor unit is usually out of sight in the roof. |
| Install work | Usually a shorter job: a head, an outdoor unit, a pipe through the wall, a drain, and power. | Roof-space work: the indoor unit, insulated ducts, outlets, the return air, and the outdoor unit. |
| Running only some rooms | You run the head in the room you are in, and leave the others off. | Zoning lets you cool the areas you are using and leave other zones off. |
How we work out the size
We assess your home. We look at the size of the house, the layout, the insulation, which way the house faces, and how many zones you actually want. A west-facing living room in Hervey Bay is a different load from a shaded bedroom. We do not size a system from a slogan or a single square-metre rule on this page.
If the roof cannot take the unit we would need, we say so. A row of split systems may be the honest answer. We would rather tell you that than force ducts into a space that cannot hold them.
What the install involves
Roof-space access comes first. We need a safe way in, enough height to work, and a path for ducts that does not crush them. Storage packed to the underside of the roof, foil with no walkway, or a hatch that a person cannot fit through changes the job. We will not promise a date until we have seen that space.
On the day, the indoor unit is set, the ducts are run and insulated, outlets go in the ceilings we agreed, and the return air grille is fitted with its filter. The outdoor unit is fixed where it can breathe, with salt air in mind if the house is near the water. Pipework is connected the way the manufacturer requires. Power is a dedicated circuit where the board allows it. We test the zones, the drain, and the controller before we leave.
The drain has to fall. Humidity here means it carries water whenever the system is cooling. A drain that cannot get outside is how ceilings stain.
The time on site is confirmed with you. Two storeys, a tight roof, or a switchboard upgrade on the same day changes that. We install Daikin, Mitsubishi and Fujitsu, in existing homes and in new builds. Nothing on this page is a promise of a warranty length. Ask us when we quote and we’ll tell you what applies to the unit.
You may be without power on that circuit, and possibly the whole house for a short time if the board is being worked on. We say so before we isolate.
What changes the price
No dollar figures:
- How many rooms and zones, and the capacity the house needs after we assess it.
- Roof access, roof height, and how far the ducts have to run.
- A new electrical circuit, and any switchboard work that circuit forces.
- Where the outdoor unit sits, including a bracket, a slab, or a long pipe run.
- Whether the house is existing or still being built. Access is different when the ceiling is open.
- Outlets, the return air, and any zone controls beyond a single area.
Why one local team
The roof work, the drains, and the electrical supply are planned together. A ducted system that the board cannot feed is not a finished job. Cleaning later, once filters and the indoor coil have been through a humid summer, is the air conditioner cleaning page.
Call with the suburb, how many rooms you want cooled, and whether there is a ceiling hatch. Photos of the roof space, if you can take them safely from the hatch without climbing in, and a photo of the switchboard, make the first conversation useful.
Last reviewed: 1 October 2026