Updated monthlyKatherine price guide Air conditioning
Air conditioning
installation cost in Katherine
Air conditioning installation in Katherine costs $1,650–$2,550 for a small split system, $2,750–$4,050 for a large living-area split, and $11,800–$17,800 for whole-home ducted, fully installed, with the biggest price swings driven by suburb, housing stock and season.
What will yours cost?
Licensed installers who service your postcode quote your exact job.
What Katherine homeowners actually pay
| Job | Installed price | Suits |
|---|---|---|
| 2.5kW split, bedroom, back-to-back install | $1,650–$2,100 | Single bedroom or home office |
| 3.5–5kW split, living room, standard install | $2,200–$3,250 | Living areas, medium lounge |
| 7kW split, open-plan living | $3,200–$4,050 | Large open-plan house living zone |
| Ducted, single storey, zoned | $11,800–$14,800 | 3-bed single-storey with roof access |
| Ducted, two storey, zoned | $14,800–$17,800 | 4-bed two-storey family home |
Local factors
Where you live changes the quote
Timing matters
Same house, same unit, different month, different price.
What the same installed job costs through the year, versus fair dry-season pricing.
Katherine installation cost FAQs
How much does it cost to install a split system in Katherine?
A small bedroom split costs $1,650–$2,550 installed in Katherine; a large living-area split runs $2,750–$4,050. Brand and install complexity set the spread within those ranges.
What does ducted air conditioning cost in Katherine?
$11,800–$17,800 installed for most Katherine homes, single-storey zoned systems from the lower end, larger two-storey homes toward the top.
Why do quotes vary so much across Katherine?
Availability, mostly. Katherine's small trade pool means calendar space moves prices, and Darwin firms quoting with travel built in widen the spread. Compare whoever's available on spec and lead time, not just the total.
When is the cheapest time to install aircon in Katherine?
The Dry, May to September. The build-up from October drives the rush and holds prices up through the wet.
How long does installation take in Katherine?
Once quoted, most split installs are a half-day job scheduled within 2–3 weeks. Ducted installs run 1–2 days on site. Lead times run longer in the Territory, allow 2–3 weeks even in the Dry.
Top End heat inland
Katherine runs hotter than Darwin through the build-up, without the sea breeze. Size generously, the unit works an eight-month season.
Tropical spec throughout
Corrosion-resistant units and tropical-rated installs are the baseline this far north, ask what's specced for the Territory.
A small trade pool
Katherine's installer base is small, and some jobs get quoted from Darwin with travel built in. Ask early, compare what's available.
Quote in the Dry
May to September is the window. The build-up arrives fast and books everyone out at once.