In NSW, electrical wiring work must be carried out by an appropriately licensed person. A small-looking change to a powerpoint or light fitting can expose live wiring, so fixed electrical work is not a DIY task.
Some user checks are appropriate when the equipment is undamaged and safely accessible. Follow the manufacturer's instructions and stop if there are warning signs. This guide explains what you can handle yourself, what must be done by a professional, and why the distinction matters.
What is safe to do yourself
Homeowners can usually handle low-risk tasks such as:
- Checking whether a device is plugged in properly and switched on.
- Replacing a bayonet or screw-in light globe in a standard fitting, with the switch turned off, the globe cool and safe access.
- Noting a tripped switch from a safe position without opening the switchboard. Ask for advice before resetting it if the cause is unclear.
- Noting which appliance was running when a fault occurred. Do not test a suspect appliance in another outlet.
- Gathering notes and photos from a safe position, without approaching damaged equipment or delaying urgent help.
- Using a smoke alarm's test button according to its instructions, with safe access.
- Replacing a user-removable smoke-alarm battery where the instructions allow it. Do not open a sealed unit or disconnect hardwired wiring; rental-property responsibilities also apply.
These tasks do not involve fixed wiring or removing cover plates. Do not touch or operate wet, damaged, hot or sparking equipment. Call 000 for smoke, fire or immediate danger. Report shocks, tingles or damaged powerlines to the electricity distributor immediately; for Ausgrid, call 13 13 88. Ausgrid's emergency guidance (opens in new tab) explains what to do.
What must be done by a licensed electrician
In NSW, the following work requires a licensed electrical contractor or tradesperson:
- Any wiring or rewiring of a circuit, including running new cable, extending existing circuits, or connecting new fittings.
- Replacing powerpoints, light switches, or fixed fittings. Even if the replacement looks simple, the connection involves fixed wiring.
- Switchboard work of any kind, including replacing breakers, adding circuits, or upgrading safety switches.
- New powerpoint or lighting installations. This includes ceiling fans, downlights, outdoor fittings, and garden lighting.
- Network connection work requiring a Level 2 electrician. The required accreditation and distributor authorisation depend on the actual job.
- Fault finding and diagnosis. Tracing an intermittent fault through wiring requires testing equipment and knowledge of circuit behaviour.
- Smoke alarm installation or replacement of hardwired units.
- Hot water system and air conditioning electrical connections.
NSW requires a Certificate of Compliance for Electrical Work for installation, repair and alteration work, including relevant like-for-like replacements. See Building Commission NSW's current CCEW guidance (opens in new tab). It records the completed work, not the condition of every concealed part of the property.
Why the risk is higher than people think
Electrical faults are not always obvious. A problem can look like a simple blown fitting when it is actually a loose connection, an overloaded circuit, or damaged insulation behind the wall. That is why the scope of the job can change once proper diagnosis starts.
Common risks of DIY electrical work include:
- Electric shock. Contact with live wiring can cause serious injury or death, even at standard household voltage.
- Fire. Incorrect connections, undersized wiring, and loose terminals are leading causes of electrical fires in homes.
- Insurance complications. Unlicensed work can affect a claim. Cover depends on the policy and the circumstances; do not assume that a policy will cover unauthorised work.
- Non-compliance. Unlicensed work will not come with a compliance certificate. This can create problems when selling the property or during a building inspection.
- Making the problem worse. An incorrect repair can mask the real fault and create a more expensive problem later.
When DIY becomes a delay
If the same issue keeps returning, DIY troubleshooting stops being practical and starts delaying the actual fix. Common examples include:
- A breaker that keeps tripping after you reset it.
- Lights that flicker after you replace the bulb.
- A powerpoint that smells hot or feels warm to touch.
- Smoke alarms that chirp, fail tests, or behave inconsistently.
- An outlet that works intermittently.
At that point, the most practical step is to call an electrician rather than continuing to test the fault yourself.
How to find a licensed electrician in NSW
To verify that an electrician is licensed in NSW:
- Ask for the contractor's licence details and check that they cover the work.
- Use Verify NSW through Service NSW (opens in new tab) to match the contracting entity, status, work category and conditions. A worker's certificate alone does not establish a company contractor licence.
- Ask for confirmation of current insurance appropriate to the work.
- Confirm the testing and electrical compliance records applicable to the work.
A practical rule of thumb
If the task changes the wiring, the protection devices, or any part of the fixed electrical installation, it must be done by a licensed electrician. If you are unsure whether a job is DIY-safe, that uncertainty is itself a good reason to stop and ask a professional.
What to do next
If you are not sure whether a job needs an electrician, ask before touching it. Contact AB Electrical with the suburb and a short description of the issue. A quick conversation can save time, money, and risk.
For a burning smell, sparking, a shock or tingle or a fault involving heat or water, call 0405 343 343 from a safe place. For planned work, send an enquiry with those details and photos only if they can be taken safely without opening covers or touching wiring. The same electrician handles the job from the first call to completion.
