Ducted aircon installation in Johannesburg
A ducted system cools a whole building from one plant, with no indoor heads on the walls. It is the tidiest answer and the one that needs the most planning, because the ducts and the plant have to fit somewhere. We connect you with an independent Johannesburg contractor who plans it properly and quotes you directly.
What a ducted system is
A ducted system puts one indoor unit in a ceiling void or a plant area and carries the cooled air to each room through insulated ducting, returning through grilles. From inside a room you see a vent, not a unit.
That is the appeal. The trade-off is that the ducts have to run somewhere, and the void, the roof and the walls decide whether that is straightforward or complicated.
The planning that has to happen first
Ducting is a design job. Each room needs its own air quantity, the duct route has to reach every outlet with enough pressure left to deliver it, and the plant has to sit somewhere it can be serviced. Get the design wrong and one room is cold while another never gets cool.
This is why a survey comes before a quote, and why a serious quote names the duct routes, the outlet positions and the plant location rather than a single figure.
What the building has to give up
A ducted installation uses ceiling void, sometimes roof space, and always wall or ceiling for the vents and the return. In a finished home that can mean a bulkhead or a dropped ceiling in a passage, planned well in advance.
Where the ceilings are concrete slab, or the roof is a flat one, the routes get harder and the design has to work around them. The contractor should tell you what the building gives up, in plain terms, before you commit.
Zoning and control
Most ducted systems are zoned, so the rooms you are not using are not cooled. That matters for running cost in a house or an office that is not full all day.
Zoning adds dampers and controls to the system, and it adds cost, so ask what zoning you are getting and whether rooms can be added later without rebuilding the whole thing.
How a ducted quote is built
The load and the plan come first, then the plant, the ducting and the vents, then the electrical supply and the controls. Ducted work is the most build-heavy aircon job there is, which is why the design stage cannot be skipped.
Ask what is included, what is excluded, and what happens if a route turns out to be impossible once the ceiling is open. Published Johannesburg guides give the wide ducted band and the factors behind it (source: Aircon Installers Johannesburg); what moves an installation quote explains the rest.
What moves the quote
We do not publish prices. The contractor quotes you directly once they understand the job. These are the factors that usually make the difference:
- The number of rooms, their loads and the air each one needs.
- The duct routes, their length, and how much insulation they need.
- The ceiling void, the roof type and any dropped ceiling or bulkhead.
- The plant position and how easy it is to service.
- Zoning, dampers and the control system.
- The electrical supply and any board work.
- Vent and return positions, and making good afterwards.
Our guide to what moves an installation quote in Johannesburg explains how to compare quotes fairly.
Frequently asked questions
Does a ducted system need a ceiling void?
It needs somewhere to run the ducts, and a ceiling void is the usual place. Where there is none, the design has to use roof space or a planned bulkhead, and the contractor should say which.
Can a ducted system be added to an existing house?
Often, yes, if the ceilings and the void allow it, and if the routes are planned before the ceiling work starts. A survey is the only way to know for your home.
Is ducted cheaper than several split units?
Not necessarily. Ducted work is build-heavy and split units are simpler to fit. Which is better value depends on the number of rooms and the building, not on a rule.
Do you install ducted systems yourselves?
No. This website connects you with independent contractors who do this work. The contractor designs, quotes and installs the system, and is responsible for it.
Can rooms be added later?
Sometimes, with zoning and spare capacity built in from the start. Ask the contractor to allow for it if you think the building will change.
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