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McGuires Electrical Contractors

Split-System Air Conditioning

Split-System Air Conditioning Installation

A split system is only as good as its installation. Undersized units struggle through a 40-degree Perth February; poorly placed outdoor units rattle bedroom windows and cook themselves against a west-facing wall.

We handle the electrical side properly — a dedicated RCD-protected circuit sized to the unit, an isolator at the condenser, and a switchboard check before we start — along with tidy pipework and bracket work.

What's included

  • New split system supply and install
  • Back-to-back and long pipe-run installs
  • Dedicated circuit and isolator
  • Switchboard capacity check
  • Replacement of failed units
  • Multi-head system installation
  • Bedroom, living and office units
  • Commissioning and testing

Recent split-system air conditioning work

  • Fujitsu Airstage split system installed high on a wall in a Perth home by McGuires Electrical
  • Smart inverter split-system indoor unit installed in a bedroom in Perth's southern suburbs
  • Daikin split-system outdoor unit mounted on a neat wall bracket with tidy pipework

Time to replace or install when

  • The unit ices up or trips the breaker
  • Rooms never reach the set temperature
  • The system is over 10 years old
  • You're adding a bedroom or home office
  • Your unit is on an overloaded shared circuit

How it works

  1. 1

    Sizing and siting

    We measure the room, check orientation and agree indoor and outdoor unit positions.

  2. 2

    Install

    Mount, pipe, wire and commission, with the electrical work certified.

  3. 3

    Show you the settings

    Run through modes, timers and Wi-Fi setup before we leave.

What it costs

Quoted per unit based on capacity, pipe run length and mounting height. Long runs and upper-storey installs add cost. Electrical work is included in the quote.

Licensing & compliance

Electrical connection to AS/NZS 3000 with a dedicated circuit and isolating switch. Refrigerant work is carried out by appropriately ticketed installers.

Split-System Air Conditioning in your suburb

Google Reviews

Customers rate our split-system air conditioning work

Google120+ 5-star Google reviews from customers across Perth's southern suburbs

Our reputation is built on hundreds of jobs done properly the first time — licensed work, tidy sites and honest pricing. Read our reviews on Google.

Questions

Split-System Air Conditioning — common questions

What size unit do I need?

As a rough guide, 2.5kW for a bedroom, 5–6kW for an open living area, more for west-facing rooms with big glass. We'll size it on site.

Can the outdoor unit go anywhere?

It needs airflow clearance and should avoid full western sun and bedroom windows. We'll suggest the best spot.

Do you install units I've bought myself?

Yes, provided it's a reputable brand with available parts and warranty support in WA.

Need split-system air conditioning?

Call now for a fast response, or send through a few details and we'll come back with a quote.

  • 120+ 5-star Google reviews
  • Licensed & insured
  • Lifetime workmanship warranty
  • Family owned & operated
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