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You're in great hands.

One of our team is reviewing your details right now. We'll call you back shortly to talk through your job, answer any questions, and get things moving.

What happens next:

1We call you back (usually within the hour)
2We talk through your job and give you a clear plan
3We book you in at a time that suits

Can't wait? Call us now:

0483 967 122
Call or text us
0483 967 122
Request a Call Back
📞 Call Now 💬 SMS Us

Multi-Split Air Conditioning Perth. Multiple Rooms. One System. Wired Right.

Need a multi-split system wired? Multiple indoor heads, one outdoor unit, and the electrical has to be right. Call us for a clear plan over the phone.

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★★★★★
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Multi-Split Electrical Services

Every Multi-Split System, Wired to Handle the Load

Multiple indoor heads running from a single outdoor unit. The electrical needs to be sized correctly from the start.

Heavy-Duty Dedicated Circuit

Multi-split systems draw significant power. We install a correctly sized dedicated circuit from your switchboard to handle the full load.

Individual Head Wiring

Each indoor head needs its own cable run from the outdoor unit. We run and terminate all inter-unit cabling cleanly.

Isolator & Protection

Compliant double-pole isolator near the outdoor unit plus RCD protection at the switchboard.

Switchboard Upgrade

Multi-splits draw more than single splits. If your board cannot handle the load, we upgrade it as part of the job.

System Changeover

Replacing individual splits with a multi-split? We reconfigure the circuits and cable runs for the new system.

Fault Finding

One head not working? Power issues? We trace the fault through the system and fix it.

A multi-split system is only as reliable as its electrical. Undersized circuits and dodgy wiring mean breakdowns in the middle of summer.

Why Choose Response

Licensed Electricians for Multi-Split Systems

clear plan from your first call

Tell us how many heads, the brand, and where they are going. We give you a fixed price before we arrive.

Licensed & Insured

Fully licensed EC009022, ARC AU57407. Every job covered by our lifetime workmanship warranty.

Coordinated Install

We coordinate with your refrigeration mechanic to ensure the electrical is ready before commissioning.

Correct Load Sizing

We calculate the total draw across all heads and size the circuit, cable, and switchboard capacity accordingly.

Every multi-split install we complete is tested, certified, and built to handle the total load. That is the Response standard.

How We Work

Our Process

1

Call Us

Tell us the number of indoor heads, brand, and room locations. We will give you a price and book you in.

2

On-Site Check

We check your switchboard capacity, plan cable runs to each head location, and confirm circuit sizing.

3

Install & Testing

Dedicated circuit installed, inter-unit cabling run, isolator fitted, and full electrical testing completed.

4

Certification

Certificate of compliance issued. Your multi-split system is wired, safe, and ready for commissioning.

Trusted by Perth Homes & Businesses

1,900+ 5-Star Reviews Across Multi-Split Electrical Services

1,900+
5-Star Reviews
Licensed
EC009022 & ARC AU57407
20+
Industry Awards
Same Day
Response Available
Real Customer Stories

What Our Multi-Split Customers Say

★★★★★
"Four-head Mitsubishi multi-split for our villa. Response ran all the cabling, upgraded the switchboard, and had it done in a day. Aircon guys were impressed."
- Chris P., Doubleview
★★★★★
"Replaced three individual splits with a single multi-split outdoor unit. Response sorted all the rewiring and the new circuit. Cleaner setup and lower power bills."
- Amanda J., Wembley
★★★★★
"Our multi-split outdoor unit kept tripping. They found the original circuit was undersized for the total load and upgraded it. No more issues."
- Daniel M., Subiaco
Questions Answered

Multi-Split Air Conditioning FAQ

A multi-split system runs multiple indoor heads from a single outdoor unit. The total electrical load is higher than a single split, so it needs a larger dedicated circuit and cable. Each indoor head also needs its own interconnecting cable to the outdoor unit.
It depends on the total capacity and number of heads. A 3-head system may need a 20A or 32A circuit. Larger systems with 4 to 5 heads may need a 40A circuit. We size it based on the manufacturer specifications.
It depends on your current board capacity. Multi-splits draw more than single splits, so older boards may need upgrading. We cover this with you over the phone and include any upgrade in your price estimate. Our on-site walkthrough confirms the details so there are no surprises.
Yes. We remove the old individual circuits and install the correct wiring for the new multi-split system. This includes a new dedicated circuit and inter-unit cabling.
Typically a full day for a 3 to 5 head system, depending on cable run distances and switchboard work. We aim to complete everything in one visit.
It varies by the number of heads, cable run lengths, and switchboard condition. Call us with the details and we will talk you through the job and give you a clear plan.

1,900+ Perth families have trusted us with their homes. Every connection backed by a lifetime warranty.

Get Your Multi-Split System Wired Today

Fixed pricing. Licensed electricians (EC009022 & ARC AU57407). Certified work. Call now or leave your details.