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Split system installation · Willetton

Split system installation in Willetton

Willetton's leafy, established streets are full of solid family homes that were never built with modern cooling in mind - which is exactly the kind of split system installation Willetton job we handle every week.

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

Split system air conditioning for Willetton homes

Willetton is a settled inland suburb in Perth's south-east, part of the City of Canning and bordered by suburbs like Leeming, Bull Creek, Riverton and Rossmoyne, with the Canning River corridor not far to the north. Being well away from the coast, salt-air corrosion isn't a worry here, so the focus is on getting the right capacity into homes that bake through the long, dry inland summers and hold heat well into the evening.

Much of the original housing stock is generously sized 1970s and 80s brick-and-tile on large blocks. These homes often run older switchboards that simply weren't designed for an extra air conditioning load, so a new dedicated circuit is usually part of the job. Because Otter Air is dual-licensed in both air conditioning and electrical, we do that switchboard and circuit work in-house - no waiting on a separate sparky and no finger-pointing if something needs sorting. A common Willetton brief is cooling a master bedroom plus the main open living zone with a well-placed wall split.

The suburb also has its share of renovated and double-storey rebuilds, and these suit a multi-head setup - one outdoor unit feeding indoor heads upstairs and down, with line runs concealed neatly through the roof space or cavities. We just as often handle changeovers, swapping a tired, noisy old unit for a quiet, energy-efficient inverter model. Whatever the scenario, air conditioning Willetton work gets the same tidy, compliant approach from licensed local technicians.

Installation cost

Split system installation prices in Willetton

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 Willetton

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 25 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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“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 Willetton

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

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