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Almost none. In Victoria, all electrical wiring work must be done by a licensed electrician, and that includes the jobs everyone assumes are fair game: changing a light switch, swapping a power point, replacing a dimmer, hardwiring anything at all. The legal DIY list is short and specific: changing light bulbs and fluorescent tubes, plugging in appliances, using approved power boards and extension leads, resetting circuit breakers and safety switches, replacing the battery in a battery-only smoke alarm, and installing extra-low-voltage garden lighting that runs off a plug pack. Everything past that list is licensed work under the Electricity Safety Act, with Energy Safe Victoria holding the whistle.
Most people are genuinely surprised by where that line sits. Australia draws it far more strictly than the overseas content that fills DIY videos, and Victorian law is untroubled by what the internet reckons.
A light switch? Really?
Really. Replacing a switch or a dimmer means disconnecting and reconnecting fixed wiring, which is electrical work in the legal sense, and Energy Safe Victoria’s long-running “Don’t DIY” campaign names power points and light switches specifically. Same goes for swapping a light fitting, replacing a ceiling fan, extending a circuit, adding a power point, and hardwiring anything from an oven to a doorbell transformer.
The reasoning isn’t bureaucratic fussiness. Behind a switch plate, the gap between a sound connection and a fire risk is invisible to an untrained eye: a loose terminal, a missing earth, undersized cable, damaged insulation pushed back into the wall where nobody will see it for a decade. Electricians spend four years learning what to look for. The trouble with the weekend job is that you don’t know what you’re not seeing, and 240 volts doesn’t grade on effort.
What actually happens if you do it anyway
Three consequences, in ascending order of pain. The law: unlicensed electrical work is illegal in Victoria and carries fines that can run into the tens of thousands of dollars, with penalties substantially increased under recent changes to the state’s electrical safety laws. The insurance: home policies commonly exclude damage caused by unlicensed work, so the DIY switch that starts a fire can void the claim on the entire house, which is a spectacular price for saving a call-out fee. The sale: building inspections and buyers’ electricians flag non-compliant work, and you’ll pay a licensed electrician to redo it at the worst negotiating moment real estate offers.
Licensed work delivers the mirror image: a qualified tradesperson accountable for the result, insurance that holds, and a Certificate of Electrical Safety documenting the job. Ask for the certificate every time; you’re entitled to it. Our guide on why you should always use a licensed electrician covers how to verify a licence, and every O’Shea electrician works under REC 36928, checkable with Energy Safe Victoria in half a minute.
The legal DIY list, in full
For the record, without a licence you can:
- Replace light bulbs, fluorescent tubes and starters
- Plug in and use appliances, approved power boards and extension leads
- Reset tripped breakers and safety switches
- Replace the battery in a 9V battery smoke alarm (hardwired alarms are licensed work, handled by our smoke alarm team)
- Install extra-low-voltage garden lighting fed by a plug-in transformer
- Assemble anything that arrives with a factory-fitted plug
Notice the pattern: nothing on that list touches fixed wiring. Here’s the test that settles every borderline case: if the cable disappears into a wall, a ceiling or the switchboard, the job belongs to a licensed electrician. If it ends in a plug, it’s probably yours.
The economical answer to small electrical jobs
The honest frustration driving DIY is that calling an electrician for one light switch feels out of proportion, and it is. The fix isn’t the screwdriver, it’s the list. Walk the house, write down every small electrical annoyance, the dead power point, the switch that crackles, the fitting still in its box, the room that’s always needed one more outlet, and book the lot as a single visit. A stocked van and one call-out turns six niggles into one sensible bill, which is a normal week’s work for our lighting and general crews. It costs a fraction of what people brace for, and infinitely less than one voided insurance claim.
Frequently Asked Questions
Do I need an electrician to change a light switch in Australia?
Do you need an electrician to change a dimmer switch?
What electrical work can I legally do myself in Victoria?
Is it illegal to do your own electrical wiring in Australia?
Got a list of small jobs quietly growing? Call O’Shea Electrical on (03) 9900 1010 or book online and we’ll clear the lot in one fixed-price visit.
