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Split system installation · Armadale 6112

Split system installation in Armadale

Tucked against the Darling Scarp in Perth's south-east, Armadale sits well inland from any coastal breeze - so when summer settles into the foothills, a properly sized split system is what keeps the house livable.

  • ✓ Free quotes, upfront fixed pricing
  • ✓ Dual-licensed: aircon + electrical
  • ✓ Workmanship warranty

Split system air conditioning for Armadale homes

Armadale's housing is a real mix, and that's what shapes a split install here. There are plenty of established brick-and-tile homes from the 1970s and 80s on generous blocks, alongside the newer double-storey estates that have spread out toward the foothills and the southern fringe in recent years. The older homes often have separate, closed-off rooms - so a single head in the master and another in the living area usually does the job better than one oversized unit trying to push air around walls. We size each head to the room rather than overselling, which keeps your running costs down through a long inland summer.

The newer two-storey builds are a different story. Heat rises, and upstairs bedrooms can sit several degrees warmer than the ground floor, so we're often planning condenser positions and routing refrigerant lines up an external wall or through a roof space to reach those rooms cleanly. For big open-plan living-and-kitchen zones, a larger single head or a multi-head setup tends to make the most sense. Either way, we plan tidy line runs so the finished job looks neat, not like an afterthought stuck on the brickwork.

One thing that genuinely matters in Armadale's older homes: the switchboard. A lot of them weren't built with high-draw appliances in mind, and a new split system frequently needs its own dedicated circuit. Because Otter Air is dual-licensed for both air conditioning and electrical, we handle the wiring, the circuit and any switchboard upgrade in-house on the same visit - no waiting on a separate sparky. That's a big part of why people choose us for air conditioning Armadale: one team, one quote, one accountable job from the wall bracket to the breaker.

Installation cost

Split system installation prices in Armadale

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
2.5kW Small bedroom, study $1,820 – $2,400
3.5kW Standard bedroom, small living $2,020 – $2,900
5.0kW Master, open-plan living $2,550 – $3,600
7–8kW Large open-plan living $2,960 – $4,500
Multi-head Several rooms, one outdoor unit $4,500 – $11,000+

We also install around Armadale

Otter Air installs split systems right across the Perth metro. Nearby areas we service:

Not your suburb? We cover all of greater Perth — see all areas or read about our split system installation service.

Rated 5.0 from 18 Google reviews

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.

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“Phenomenal service provided by Matt! The works was done on schedule and to a professional standard. The price was also very reasonable for the works done. I highly recommend for anyone looking to get aircon work done, and I wish Otter Air Conditioning the best for their future endeavours.”

Free split system quote in Armadale

We'll size the right unit for your room, give you a fixed, upfront price, and handle any electrical work in-house.