Stuart Johnston Electrical

3 Phase Power Installation in Wollongong

Licensed electricians who get three-phase connected properly in homes, sheds and workshops

All Work Fully Guaranteed
3 Phase Power Installation2-compressed

A 3 phase upgrade moves your property from single-phase to three-phase supply, so you can run welders, big motors and heavy loads without tripping the board. We handle the switchboard, wiring and network connection, start to finish.

Three-phase Supply, Sorted without the Runaround

Stuart Johnston Electrical provides 3 phase power installation across Wollongong and the Illawarra. Sometimes it’s a house that’s outgrown its supply. Sometimes it’s a shed with a brand new welder and nothing to run it on.

Most people call us after putting up with the problem for a while. The lights flicker when the compressor starts. The welder trips the board right in the middle of a job. The oven and the air conditioner can’t run at the same time, so someone ends up checking the clock before dinner. Nothing’s actually broken. The supply just can’t keep up.

We handle:

Why use a licensed electrician for a 3 phase upgrade?

The work starts at the street and finishes at your switchboard.

A 3 phase upgrade isn’t just a new box on the wall. It touches the whole connection: service line, meter, switchboard and every circuit hanging off it. Get the load sharing wrong and breakers trip for no clear reason, and the blame lands on the wrong appliance for years.

It’s a safety issue too. The NSW Government says electrical faults and appliances cause about 40% of house fires in NSW each year, and many of those fires come from old wiring that can’t cope with modern demand.

Before we connect anything, we check:

  • Whether your cable, meter and switchboard can stay or need replacing
  • How the load should be shared across all three phases
  • That protection and earthing suit the new setup
  • Whether your equipment needs three-phase at all

 

We’re an accredited Level 2 service provider, so we handle the network side too and you’re not stuck playing messenger. In NSW, you also get a Certificate of Compliance for Electrical Work when we finish. See our other Level 2 services, including overhead and underground connections.

What We Check Before Installation?

We start with what you’re trying to run.

Every 3 phase power installation starts the same way: we walk the site with you. We look at your supply, meter and board, then ask what you’re running now and what’s coming next. The bigger compressor, the second welder, the workshop you keep talking about. Then:

The wiring is often the quick part. Waiting on the network provider can stretch the timeline, and we’d rather tell you that now than after you’ve cleared out the shed.

What affects 3 phase power installation cost?

We can’t quote honestly without seeing the site.

The cost of a three-phase power installation depends on your property’s existing electrical setup and the work required to upgrade it. Key factors include:

Every property is different, so a site inspection helps identify what’s needed before work begins. A detailed written quote also makes it easier to understand the costs and compare quotes fairly.

Why Choose Stuart Johnston Electrical?

Homes and workshops across Wollongong, Shellharbour, Dapto, Fairy Meadow, Corrimal, Albion Park and the wider Illawarra choose us for 3 phase power installation.

Do you actually need three-phase?

Plenty of properties don’t.

Single phase runs most homes just fine. Three-phase starts to make sense with big motors, welders, large air-conditioning units, or a workshop where several machines run together. If that’s not you, an upgrade could be money spent for nothing, and Stuart Johnston Electrical will tell you so. Not sure which side you’re on? Get in touch with our team today.

Customer Reviews

Read what our customers have to say about us.

Frequently asked questions

Answers to some of the most common questions our customers ask
How long does a three-phase upgrade take?

The on-site wiring is usually the shortest part. The timeline mostly depends on the network provider’s schedule, so we’ll give you a realistic window once we’ve seen the property.

Sometimes. If it’s older or worn, it may need replacing to handle the new supply and meet current safety requirements. We’ll check its condition and explain any work before we start.

Yes. A three-phase upgrade needs your network provider’s approval, and a licensed electrician must carry out the installation. We handle the application.

Yes. Three-phase suits many larger motors, welders, compressors and commercial equipment.

It can help if you have high-power appliances, large air conditioners or several big loads running together. Many homes run perfectly well on single phase, so an upgrade isn’t always necessary.

Need 3 Phase Power Installation?
All Work Fully Guaranteed

Call us today for 3 phase power installation across Wollongong & the Illawarra.

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