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Tell us the house and the question
Call or message with the basics - house type, rooms, what you are weighing up. Two minutes of context makes the advice worth having.
$7,000 to $12,500 installed for most Sydney homes. Real numbers by house size, from the crew that installs them.
How Much Does Ducted Air Conditioning Cost in Sydney?
Ducted Cost
The Straight Numbers
Installed prices, not supply-only teasers - and what moves the number up or down.
How much does ducted air conditioning cost in Sydney? For a typical 3-bedroom single storey, $7,000 to $10,000 installed for a 10kW system. A 4-bedroom home wants 12.5kW at $8,000 to $11,000. Big two-storeys and acreage run 14 to 16kW with zoning at $9,000 to $12,500. Those are installed prices including the duct runs and zoning - not the supply-only numbers some ads tease. Since 1991, 4.8 stars from 280+ reviews.
Replacing an existing ducted system? Usually cheaper than those figures - sound duct runs get reused, which can take thousands off. First install into a finished home costs more than the same system roughed in during a build. Where your job sits in the range comes down to roof access, runs and zones.
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Licensed, Certified & Insured Technicians
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Flexible & Affordable Financing Options
Wide Range of Systems & Leading Brands
Quick Numbers
Ducted Prices by Home Size
Installed, including ducts and zoning. Fixed quote before work starts.
3-bed single storey: $7,000 to $10,000
A 10kW system with 3 to 4 zones covers most 3-bedders comfortably. Straightforward roof spaces sit at the lower end.
4-bed family home: $8,000 to $11,000
The classic Sydney job: 12.5kW, 4 zones, sleeping and living areas running separately. Most homes land here.
Two-storey or acreage: $9,000 to $12,500
14 to 16kW with 5 or 6 zones, long runs done properly, upstairs and downstairs independent. West-facing glass and dark roofs push toward the top.
Replacement of an existing system: often $1,000 to $2,000 less
If your old duct runs are sound, the new unit connects to them and the labour drops. We inspect the roof before quoting so the saving is real, not assumed.
What Moves the Price
Four things set your number inside those ranges. Size - kilowatts cost money, and honest sizing for your heat load matters more than brand. Zones - each zone adds damper hardware but pays for itself in running cost. Roof access - a generous roof space installs faster than a tight skillion. And brand tier - Panasonic and Actron cover the value-to-premium spread, Daikin sits at the top.
Get your size right first with the sizing calculator, then check the full price tables on our pricing guide. Any quote that names a price without seeing your roof space is a guess - ours are fixed after we look.
Common Factors
What's Actually Gone Wrong
What moves a ducted quote up or down, item by item.
Is ducted worth it over multiple splits?
Once you need three or more rooms covered, the maths converges – three good splits run $7,000 to $8,500 against ducted at $8,000 to $11,000, and ducted wins on looks, resale and one-service-a-year.
How much does zoning add to the cost?
Roughly $300 to $400 per zone at install time – the cheapest running-cost insurance there is. Cooling two zones instead of the whole house roughly halves the power draw.
Why do quotes vary so much between companies?
Usually the size and the scope. One quote is 10kW unzoned, the other 14kW with 5 zones – they are different jobs. Compare kilowatts, zone counts and what is included before comparing dollars.
When is the cheapest time to install ducted?
Autumn and winter – calendars are open and installs book fast. Summer is peak demand and peak wait. Same system, better timing, smoother job.
Running Costs After the Install
A zoned ducted system costs $2 to $4 an hour at full load pulling the whole house down, and far less once at temperature. Zone it so bedrooms and living areas run on their own schedules and the quarterly bill stays civilised - our running costs page has the full numbers.
Diagnosis Process
How Our Quote Works
We look at the roof space, size for your actual heat load, lay zones out around how the family lives, and hand you one fixed number. Mick has run our installs since 2009. lifetime workmanship warranty, no quote that grows legs. (02) 9820 4500.
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We measure, not guess
Sizes come from volume and glass, verdicts come from testing. No brochure numbers, no sight-unseen quotes.
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You get the numbers and the options
Real installed prices, repair-versus-replace maths, and the trade-offs in plain English. You decide with the facts in front of you.
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Fixed quote before any work
The price agreed is the price paid, and installs and repair parts carry lifetime workmanship warranty.
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Fixed quote before we fix
Once we know the fault, we quote the repair before we start. You decide. Most jobs get done same visit.
Real Jobs
Building or Renovating?
Rough in the ducted system at frame stage – it is significantly cheaper than retrofitting after handover and keeps every option open. We coordinate with builders across Sydney. (02) 9820 4500.
Fixed Quotes, Real Numbers
We publish our prices because hiding them wastes everyone's time. Panasonic, Daikin and Actron installed, every brand repaired. Licence 273312C, ARCtick AU13058. Since 1991, 4.8 stars from 280+ reviews.
Related reading: whether ducted is right for your home, running costs after the install, and the full price guide.
FAQ's
Ducted Cost - Common Questions
Installed: $7,000 to $10,000 for a 3-bed single storey (10kW), $8,000 to $11,000 for a 4-bedder (12.5kW), $9,000 to $12,500 for two-storey and acreage homes (14 to 16kW zoned).
Often $1,000 to $2,000 under the first-install price, because sound duct runs get reused. We inspect the ducts before quoting so the saving is confirmed, not promised.
Agents consistently treat whole-home ducted as a selling feature, and it presents better than wall units in every room. It is one of the few comfort upgrades that shows up at sale time.
Most single-storey installs run two days, two-storey and acreage jobs two to three. Replacements reusing ducts are usually quicker.
Jay’s Air – Panasonic, Daikin and Actron ducted systems installed across Sydney with fixed quotes and a lifetime workmanship warranty. Family run since 1991, 4.8 stars from 280+ reviews. (02) 9820 4500.
Don’t run it hard for days on end. A struggling unit just cooks its own parts, and if it’s iced up it can kill the compressor. Switch it off, run through the quick checks, and book it in if it’s still warm.