Split system installation · Harrisdale 6112
Split system installation in Harrisdale
Harrisdale is one of Perth's newer south-east estates, and its modern double-storey homes ask more of an aircon install than a single-storey weatherboard ever did. That's the kind of job we're built for.
- ✓ Free quotes, upfront fixed pricing
- ✓ Dual-licensed: aircon + electrical
- ✓ Workmanship warranty
Split system air conditioning for Harrisdale homes
Most of Harrisdale went up from the 2000s onward, so the housing here is dominated by modern brick-and-render homes on tighter estate blocks, a good share of them double-storey. That layout shapes nearly every split system installation Harrisdale homeowners ask us about. Cooling a downstairs open-plan kitchen, dining and living zone often calls for a larger single head or a multi-head setup, while upstairs the bedrooms and that west-facing master need their own heads to stay comfortable through a long inland afternoon. We plan the indoor positions and outdoor condenser location together so the run is efficient and the unit isn't baking in full sun.
Double-storey routing is where a lot of installers cut corners and a tidy job earns its keep. Getting refrigerant lines and drainage from an upstairs bedroom down to a ground-level condenser without ugly trunking running across the render takes planning, and we route through the roof space and cavities wherever the build allows. Harrisdale sits inland rather than on the coast, so salt corrosion isn't the concern here that it is by the water; the real enemy is the heat. We position outdoor units for airflow and shade so they hold their efficiency when summer settles in over the corridor.
Being dual-licensed in both air conditioning and electrical means the whole job stays with one team. Plenty of larger Harrisdale homes running multiple heads need a dedicated circuit run from the switchboard, and because we're licensed electricians too, we handle that in-house rather than booking a separate sparky. Whether it's a fresh install in a newer build, adding a head to a growing family home, or swapping out a tired old unit, we give honest, upfront advice on air conditioning Harrisdale residents can rely on.
Installation cost
Split system installation prices in Harrisdale
Real supply-and-installed ranges for a standard back-to-back install (GST inc.). See the full breakdown in our Perth split system cost guide.
| Unit size | Suits | Supply + installed |
|---|---|---|
| 2kW | Nursery, study, small bedroom | $1,490 – $2,225 |
| 2.5kW | Small bedroom, study | $1,580 – $2,300 |
| 3.5kW | Standard bedroom, small living | $1,770 – $2,565 |
| 4.2–4.6kW | Large bedroom, medium living room | $2,380 – $3,145 |
| 5kW | Master bedroom, open-plan living | $2,125 – $3,260 |
| 6kW | Large living or open-plan area | $2,185 – $3,525 |
| 7kW | Large open-plan living/kitchen | $2,310 – $3,900 |
| 8–8.5kW | Very large open-plan zones | $2,575 – $4,545 |
| 9–9.5kW | The biggest single-zone spaces | $4,315 – $5,140 |
| Multi-head | Several rooms, one outdoor unit | $4,500 – $11,000+ |
We also install around Harrisdale
Otter Air installs split systems right across the Perth metro. Nearby areas we service:
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Perth homeowners have trusted us for 10+ years. Here's what they say.
Real five-star reviews from Perth homeowners — see why locals choose Otter Air for air conditioning and electrical work.
See all reviews“Excellent Air Conditioning Installation Service! ⭐️⭐️⭐️⭐️⭐️ When looking to install 2 new aircons at my house, I was recommended to use Otter Air & Electrical and I couldn't be happier with the service provided by Matt and his assistant. From the initial enquiry through to the completion of the installation, the entire experience was seamless, professional and efficient. Matt responded promptly to emails, arrived exactly on time as scheduled, highly professional and the whole experience was stress-free. On the quote, he provided a few options with breakdown details of what is included in the price and makes it easier to make the decision. On the day of installation, the process was completed on schedule and I'm very happy with the quality of the work. They took great care to keep the work area clean and tidy throughout the job, and once finished, they thoroughly cleaned up, leaving everything spotless. Thank you very much, Matt and team and I would highly recommend this company to anyone looking for a reliable, professional and efficient aircon company.”
Free split system quote in Harrisdale
We'll size the right unit for your room, give you a fixed, upfront price, and handle any electrical work in-house.