Boronia based · Melbourne's east

0431 568 379
Polarised electrician testing switchgear on a food production line
HIGH VOLTAGE + SUBSTATIONS

High voltage, handled with respect

High voltage and substation works for Victorian sites

Polarised Electrical carries out high voltage and substation works for Victorian sites — HV switching, substation installation, maintenance and testing. The work is delivered by licensed A-Grade electricians with documented safety procedures and compliance, and we attend site before quoting.

HV works, substation maintenance and switching for industrial and commercial sites — planned, permitted and executed by people who've done it for years.

5.0 on Google

Request a site visit

Two details and a licensed sparky calls you back. No call centre, no obligation.

5.0 on Google · A-Grade licensed · REC 33326

Rather talk now? Call 0431 568 379

Qualified + current
HV switching operators on site
Planned + permitted
isolation done by the book
Industrial-grade
from Luke's production background

What this job covers

  • SUBSTATION MAINTENANCE
  • HV SWITCHING + ISOLATION
  • TRANSFORMER WORKS
  • PROTECTION TESTING COORDINATION
  • SITE HV AUDITS
  • SHUTDOWN PLANNING
THE PROBLEM

There are no small mistakes at 22kV

High voltage work is procedure or it's nothing: switching programs, permits, isolation verified twice, the right PPE and the right people. Sites that treat it casually end up in the news.

We plan HV works properly — switching schedules written and checked, permits managed, work executed inside the window and proven safe before re-energisation.

01
Switching programs written + verified
02
Permits and isolation by the book
03
Maintenance that keeps insurers satisfied
04
Re-energisation proven, not assumed
THE WORK

Three steps, no mystery

STEP 01

Audit

Site HV assets, records, risks — assessed.

STEP 02

Plan

Switching program, permits, window, crew.

STEP 03

Execute

Work done, tested, energised, documented.

Finished switchboard upgrade with RCBOs on every circuit
WHAT'S INCLUDED

Everything in the price, nothing added later

HV works, substation maintenance and switching for industrial and commercial sites — planned, permitted and executed by people who've done it for years.

  • Substation maintenance
  • Hv switching + isolation
  • Transformer works
  • Protection testing coordination
  • Site hv audits
  • Shutdown planning
  • Certificate of Electrical Safety
  • Tidy site, rubbish taken with us
Energy Safe VictoriaSolar Accreditation AustraliaClean Energy Council Accredited InstallerClean Energy Council Accredited Designer

A-Grade licensed, REC 33326, fully insured. Every job finishes with a Certificate of Electrical Safety and a workmanship guarantee.

RECENT WORK

Real jobs, done by our own crew

Polarised electrician testing switchgear on a food production line
Audit: Site HV assets, records, risks — assessed.
Polarised Electrical crew on site in Melbourne's east
Plan: Switching program, permits, window, crew.
Completed electrical work at a Melbourne east home
Execute: Work done, tested, energised, documented.
GOOD TO KNOW

Why HV work is all preparation

On the tools, high-voltage work is often brief — the switching sequence, the test, the connection. The real work happened for days beforehand: the switching program written and independently checked, access permits raised, isolation points confirmed against single-line diagrams that match reality, earths applied and proven, and every person on site briefed on exactly one version of the plan.

The discipline exists because HV doesn't give second chances, and because the paperwork is the safety system: a permit isn't bureaucracy, it's the barrier between an energised bus and a human being. Sites with private HV assets — substations, transformers, HV switchgear — need contractors who treat the procedure as the job, not an obstacle to it.

Completed electrical work at a Melbourne east home
The paperwork is the safety system — the permit is the barrier.

You'll know the price before the tools come out.

Scoped and quoted from a site visit — fixed where fixable, transparent where variable.

Request a site visit
5.0 ★
across 57 Google reviews
100%
in-house crew — zero subcontractors
REC 33326
licensed A-Grade electrical contractor
  • Ryan and Jack are top blokes and easy to deal with. Highly recommended!” — Jeffrey Belvez, five stars
  • Absolutely fantastic service and work done!” — Isaac Giblett, five stars
  • Thanks guys we realy appreciate your work and polite attitude.” — Stephen S, five stars
  • They got the job done in no time, and my split systems were up and running.” — James "Mitchi" Mitch, five stars
  • They heard every single word of us and suggest us which is good and why. Highly recommend” — Anisa Tasnim, five stars
WHY PEOPLE TRUST THE QUOTE

Proof, not promises

Anyone can say they're licensed. Here's what that actually means when we're on your job — and the paperwork you'll hold at the end of it.

5.0 from 57 Google reviews
Energy Safe VictoriaSolar Accreditation AustraliaClean Energy Council Accredited InstallerClean Energy Council Accredited Designer
01

Quoted before we start

You see the number, the inclusions and the exclusions in writing. If the scope changes on site, we stop and ask — we don't invoice a surprise.

02

Our own A-Grade crew

No labour hire, no subcontractors. The electrician who quotes your job is the one standing in your switchboard, on the same REC (33326).

03

Certified and documented

Every job finishes with a Certificate of Electrical Safety, tested circuits, a labelled board and photos of anything hidden behind a wall.

04

We come back

Workmanship guaranteed and manufacturer warranties registered in your name. If something plays up, you ring us — not a call centre in another state.

IN THEIR WORDS

5.0 from 57 reviews

Read all reviews →

Every review below is a real Google review from a Melbourne east job — no incentives, no filtering. It's the same crew, on the same REC, doing high voltage + substations work like yours.

Excellent service! The team arrived on time and completed the installation efficiently and up to scratch. Everything was done neatly, with great attention to detail. Ryan and Jack are top blokes and easy to deal with. Highly recommended!

Jeffrey Belvez · Glen Waverley

Absolutely fantastic service and work done! The boys were super accommodating, answered any questions I had without a problem, left everything neat and tidy and overall did an amazing job installing our battery and inverter. Cannot recommend enough.

Isaac Giblett · Battery + inverter

Zak and Ryan did a amazing job. Even with the obstacles of a double story home with a internal switch board they persevered in the heat and got the job done. Thanks guys we realy appreciate your work and polite attitude.

Stephen S · Switchboard

Luke and his team installed our solar panels over the space of 2 days. Great service arrived on time and communicated well, took away all rubbish made sure the place was left tidy and walked me through the app and next steps. Would highly reccomend!

Christie V · Solar install

Ryan and Jack did a great job doing the electrical work on my new 4 head split system. They got the job done in no time, and my split systems were up and running. Once connected, Ryan made sure all 4 heads were working. Thanks guys, great job!

James "Mitchi" Mitch · Split system

The experience is very nice with them. Specially Roy and Jack did their best. We are so much happy about their service. They heard every single word of us and suggest us which is good and why. Highly recommend

Anisa Tasnim · Hot water swap

Luke
headshot

Luke · Founder, A-Grade electrician

A NOTE FROM LUKE

Most of what's wrong with this industry comes down to one thing: the person selling isn't the person installing.

I'm a licensed A-Grade electrician, and so is everyone who'll be on your roof or in your switchboard. When we quote your home, we're quoting work we'll do ourselves — which is why we'll happily talk you out of gear you don't need.

If you're thinking about getting off gas, call us. Worst case, you'll hang up knowing more than you did.

Luke

Founder, Polarised Electrical

Real questions, straight answers

ENERGY. OPTIMISED FOR LIFE.

By the book, every time

Book a site visit, or call and talk to a real sparky today.

5.0 from 57 Google reviews

WHERE WE DO THIS

Across Melbourne's east and south-east — Boronia to Berwick, Balwyn to Warrandyte.