Installed cost · Small bedroom, study
2.5kW split system installed cost in Perth
$1,820 – $2,400 inc GST, supply & installed
Typical range for a premium-brand unit on a standard back-to-back install. Our value option comes in under it — every live price is in the table below.
This is the size most people actually need for the room that's keeping them up at night — one hot bedroom, a study, a nursery. It's also where the cheapest advertised deals live, so compare what's actually included: at this size the unit is cheap and the install quality is most of what you're paying for. Every price on this page — including our value option — is the full back-to-back scope, electrical connection and commissioning included. Done properly, a 2.5kW split is a 15-year fix for a small room.
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Every 2.5kW unit we install, side by side
Live supply-and-installed prices for a standard back-to-back install — the same numbers we quote from — with the specs that actually matter lined up so you can pick on the merits. Green marks the strongest figure in each row. Click any unit for its full page.
| Spec | Premium Panasonic RZ 2.5kW CS-RZ25AKRW | ★ Most popular Premium Panasonic Z 2.5kW CS-Z25AKRW | Premium Daikin Cora 2.5kW FTXV25WVMA | Premium Daikin Alira X 2.5kW FTXM25YVMA | Value Midea Athena 2.6kw specs on Athena page |
|---|---|---|---|---|---|
| Supply + installed | from $1,880best | from $2,000 | from $2,105 | from $2,265 | from $1,580 |
| Cooling | 2.5kW | 2.5kW | 2.5kW | 2.5kW | — |
| Heating | 2.8kW | 3.2kW | 3.2kW | 3.2kW | — |
| Cooling range | — | — | 0.9–3.7kW | 1–3.7kW | — |
| EER (cooling efficiency) | 4.32 | 4.32 | 5.1 | 5.38best | — |
| COP (heating efficiency) | 4.39 | 4.39 | 5best | 5best | — |
| Energy stars (cooling) | 4★* | 4★* | 6★best | 6★best | — |
| Quiet mode | Yes | Yes | 19 dB(A)best | 19 dB(A)best | — |
| Wi-Fi / app control | Optional adaptor | Built-in | Optional adaptor | Built-in | — |
| Air purification | Anti-bacterial filter | nanoe™ X (24/7) | Deodorising filter | Streamer (built-in) | — |
| Airflow | Adjustable louvres | AEROWINGS twin louvre | Coanda + Intelligent Eye | Coanda + Intelligent Eye | — |
| Dedicated circuit | Usually not needed | Usually not needed | Usually not needed | Usually not needed | — |
| Warranty | 5-year parts and compressor | 5-year parts and compressor | 5-year parts and labour | 5-year parts and labour | — |
"Best" marks the strongest figure in each row across these units. * average-zone rating; others are Perth's hot zone. Prices are live from our pricing system, supply and installed on a standard back-to-back install, inc GST.
What moves the price inside $1,820 – $2,400
The bottom of the range is a standard back-to-back install, which includes:
- The indoor head and outdoor unit, mounted, levelled, and secured
- Up to 3 metres of insulated refrigerant pipework in neat trunking
- Electrical connection to a suitable existing circuit, with an isolating switch at the outdoor unit
- Condensate drain run to ground level
- Standard outdoor mounting (blocks at ground level, or a wall bracket where specified)
- Vacuum, pressure test, and refrigerant charge to the manufacturer's spec
- Full run test, commissioning, remote demo, and the compliance paperwork
Long pipe runs, two-storey mounting, awkward access and brand tier lift it from there. The full anatomy — with worked examples — is in our Perth split system cost guide, or try the cost calculator for your setup.
2.5kW split systems — common questions
How much does a 2.5kW split system cost installed in Perth?
$1,820 – $2,400 supply and installed (inc GST) for a premium-brand unit on a standard back-to-back install. The bottom of that range is an easy wall and a mid-tier premium unit; the top is a flagship unit or a more involved install. Our value-tier option (Midea Athena) comes in under it, and large-capacity units above it — the exact live prices for every unit are on this page, and every quote is fixed before work starts.
What size room does a 2.5kW split system suit?
13 to 20 m² — small bedroom, study. Insulation, ceiling height and window orientation shift the answer at the margins, which is why we confirm sizing at a free quote rather than guessing from floor area alone.
Does a 2.5kW split system need new electrical work?
Usually not — at this size the unit can often run from a suitable existing circuit if it's compliant and has capacity. We check the switchboard as part of the free quote. If a dedicated circuit is needed, we run it in-house — we're dual-licensed in aircon and electrical.
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Get a fixed 2.5kW install price
We'll confirm the size actually suits your room, pick the right unit for the budget, and quote the whole job — install and electrical — in one fixed price.