Split System AC Installation in Mulgrave & Melbourne
Professional split system air conditioning installation, replacement, and wiring for Mulgrave homes. Safe, certified electrical work that keeps you cool in summer and warm in winter, year after year.
Professional Split System AC Installation in Mulgrave
A split system air conditioner is one of the most efficient ways to heat and cool individual rooms. At Ziggy Electrical & Data, we handle the electrical side of split system installation for Mulgrave homes — safe, certified wiring, dedicated circuits, and switchboard connections that keep your system running reliably for years.

We work with your air conditioning installer or supply and install complete systems, ensuring the electrical work is done safely and compliantly. We assess your switchboard capacity, run dedicated circuits, and issue a Certificate of Electrical Safety for all notifiable work. Cool comfort, properly certified.
What Our Service Includes:
Split System Wiring
Safe, certified electrical wiring for split system air conditioners.
Dedicated Circuit Installation
Dedicated circuits to safely handle the load of your AC unit.
Switchboard Connection
Switchboard assessment and connection for your new air conditioner.
System Replacement
Electrical work for replacing old split systems with new units.
Outdoor Unit Power
Safe power supply to outdoor compressor units.
Compliance Certification
Certificate of electrical safety issued for all notifiable work.
Why Choose Ziggy Electrical & Data?
Choosing Ziggy Electrical & Data means choosing electricians who understand Melbourne's unique conditions. We use only quality, compliant products, apply proven installation techniques, and stand behind every job with our workmanship guarantee.
Areas We Serve:
We provide electrical services across Melbourne and south-eastern suburbs including Mulgrave, Glen Waverley, Wheelers Hill, Clayton, Mount Waverley, Notting Hill, Springvale, Dandenong, Carnegie, Oakleigh, Chadstone and surrounding areas.
Get a Free Quote
Tell us about your project and we will get back to you ASAP
Our Core Services
Service Areas
- Mulgrave
- Glen Waverley
- Wheelers Hill
- Clayton
- Mount Waverley
- Notting Hill
- Springvale
- Dandenong
- Carnegie
- Oakleigh
- Chadstone
- Melbourne CBD
Our Split System AC Process
A safe, certified approach to delivering reliable split system electrical work in Mulgrave.
Site Assessment
We inspect your property's current electrical setup, identify any safety issues, and discuss your requirements for the project.
Preparation & Safety
We isolate power safely, prepare work areas, and ensure all surfaces and belongings are protected before any work begins.
Quality Installation
Installation of quality, compliant electrical products using professional techniques for safe, reliable results.
Testing & Certification
Comprehensive testing, clean-up, and issuance of compliance certificates to ensure everything meets current standards.
Real Projects,
Real Results
From residential wiring to switchboard upgrades and EV chargers, here's a selection of recent projects our team has completed across Melbourne's suburbs.
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Split System AC Installation

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Loved By Homeowners Across Melbourne
Real 5-star Google reviews from Melbourne clients.
"Amazing work ethic & 10/10 craftsmanship!"
Cannot recommend Izzy highly enough. Amazing work ethic, communicative, and 10/10 craftsmanship on the work she undertakes. She also went above and beyond on a few other components of my apartment which I'm very grateful for.
Emily N
Google Review
"Arrived on time & did perfect work!"
Izzy was recommended to me by a friend she had performed great work for. She arrived right on time, did perfect work and even popped next door to fix a power point for my neighbour. I can't recommend her highly enough.
Patricia Bradbury
Google Review
"Thorough, reliable & professional service!"
Absolutely top-notch service. She's not only a fantastic electrician — thorough, reliable, and clearly knows her stuff — but also has a really gentle, respectful presence. Showed up on time, communicated clearly, and did a brilliant job.
Lilly Cross
Google Review
"Efficient, honest & reliable!"
Isabelle is a professional at what she does. Very efficient, honest and reliable. Couldn't be any happier with the outdoor and indoor lighting she did for us. Highly recommend.
Rashelle F
Google Review
Split System AC Installation Mulgrave | Ziggy Electrical & Data
A split system air conditioner is an efficient way to heat and cool individual rooms, but it requires safe, certified electrical work — a dedicated circuit, proper switchboard connection, and compliant wiring rated for the continuous load. At Ziggy Electrical & Data, our licensed electricians handle the electrical side of split system installation across Mulgrave and Melbourne's south-east, keeping your system running reliably and safely.
From bedrooms in Mulgrave to living areas and home offices across Melbourne's south-eastern suburbs, we handle split system electrical work of every kind — new installations, system replacements, and dedicated circuits for additional units. We assess your switchboard, run the correct cabling, and issue a Certificate of Electrical Safety for all notifiable work. We also service Glen Waverley, Wheelers Hill, Clayton, and surrounding areas. Contact us for a free split system electrical quote.
Frequently Asked Questions
Find answers to common questions about our services.
We can do either. For most Mulgrave split system jobs, we handle the electrical side — the dedicated circuit, switchboard connection, isolation switch for the outdoor unit, and compliance certification — working alongside your air conditioning installer who mounts and connects the actual unit. We can also supply and install complete split systems if you'd prefer a single contractor handling the whole job. During your free quote, we'll clarify exactly which parts of the job we're handling and coordinate with your AC installer so the installation runs smoothly and everything is properly certified.
In most cases, yes. Split system air conditioners — especially larger units and those on heating mode — draw significant continuous current that a shared general-purpose circuit isn't designed to carry safely. We install a properly rated dedicated circuit with the correct cabling, circuit breaker, and safety switch protection, and an accessible isolation switch near the outdoor unit as required by the standard. This keeps your new AC running safely and reliably without overloading existing circuits, and it's a requirement for compliance in most Mulgrave installations.
We assess that during your free quote. If your Mulgrave home's switchboard has spare capacity and modern safety switches, we can usually connect a new dedicated circuit without any upgrade. Older homes with full or outdated boards may need a switchboard upgrade to safely accommodate the additional load — and we'll tell you clearly if that's the case, with a fixed-price quote covering both the upgrade and the AC wiring. Getting the switchboard right is what ensures your split system runs safely and reliably long-term, so we never compromise on it.
Yes. When you're upgrading to a new or more efficient split system, we handle the electrical side — checking the existing dedicated circuit, isolating and disconnecting the old unit's power, updating the isolation switch and protection if the new unit has different ratings, and wiring in the replacement safely and compliantly. If the new system has a higher load than the old one, we ensure the existing circuit is properly rated or upgrade it. Your Mulgrave home gets cool, quiet, efficient comfort, fully certified, without the old unit's running costs or noise.
Absolutely — and it's a common setup for larger Mulgrave homes. We can install dedicated circuits for multiple split systems throughout your home: bedrooms, living areas, studies, and home offices. Each unit gets its own properly rated circuit so the total load stays safe and balanced across your switchboard. We plan the cabling routes to be neat and minimally disruptive, coordinate with your AC installer if you're using one, and certify all the notifiable work. Multiple split systems give you zoned, efficient comfort exactly where you need it.
Cost depends on the number of units, the distance between the indoor and outdoor units and your switchboard, whether a switchboard upgrade is needed, and the condition of your existing wiring. As a guide, installing the dedicated circuit and compliance certification for a single split system in Mulgrave typically starts from around $450 to $800 plus the cost of the unit itself if we're supplying it. We provide a clear, fixed-price quote after inspecting your property, so you know the full cost before we begin — no surprises.