Most electrical hazards in a Sydney home don’t announce themselves with a bang. They warm up slowly behind a powerpoint, build up inside an old switchboard, or hide in a frayed cord behind the lounge. After more than a decade across Sydney, the patterns we see on call-outs are surprisingly consistent. This electrical safety checklist walks through what to inspect yourself, what only a licensed electrician can touch, and the signs that something needs attention now rather than later.
Start at the Switchboard
Your switchboard is the brain of the system, and it is the first board we open on every safety check.
✔ Look for ceramic fuses. If you still have them, the board predates modern safety standards and is ready for an upgrade.
✔ Check that you have safety switches (RCDs), not just circuit breakers. Each should have a “T” or “Test” button.
✔ Press the test button on every safety switch every three months. If it does not trip the circuit instantly, get it inspected.
✔ Ideally, lighting and power circuits should each be on their own RCD. Some older Sydney homes only protect part of the system, leaving lights and the hot water unit exposed.
✔ Watch for warmth, buzzing, or a faint burning smell at the board. Any of these means call a sparky today.
Smoke Alarms: The Law and the Reality
Since May 2016, every residential property in NSW must have working smoke alarms. The law is the floor, not the ceiling.
✔ Test every alarm monthly using the button on the unit
✔ Replace batteries yearly unless you have 10-year sealed units
✔ The alarm itself only lasts about 10 years, so check the date stamp on the back
✔ Photoelectric alarms are recommended by Fire and Rescue NSW for most homes because they are better at picking up the slow, smouldering fires that often start in wiring or furniture
✔ Interconnected alarms are the upgrade most worth making, since when one detects smoke, all of them sound, which matters most at night
If you are not sure how many alarms you need, where they should sit, or whether yours are in date, our smoke alarm installation team can run through the whole property and bring it up to current standard.
Power Points, Switches, and Cords
This is where most everyday faults show up, and on a walk-through this is what we check next.
✔ Check power points for discolouration, scorch marks, or warmth to the touch
✔ Listen for buzzing, crackling, or a faint humming sound
✔ Replace any plug that no longer sits firmly in the socket
✔ Inspect appliance cords (kettle, toaster, hair tools, extension leads) for fraying, cracks, or chewed sections
✔ Always pull the plug, never the cord, when unplugging
✔ If a powerpoint sparks when you plug something in, stop using it and book an inspection
Do Not Overload Circuits
Daisy-chained power boards and stacked double adaptors are two of the most common causes of overheating we see. Each circuit in your home is rated for a set load, and stacking high-draw appliances on one outlet (heater, kettle, hairdryer) pushes it past easily. If breakers trip often in the same spot, that is the circuit telling you something. It is not a nuisance to override; it is a warning.
Older Wiring, Outdoor Risks, and After-Storm Checks
Homes built before the 1980s, which we work on regularly across the inner suburbs, often run on wiring that was not designed for induction cooktops, ducted air-con, or EV chargers. If yours has not been inspected in years, a quick visit will pick up problems hidden in the walls and roof space before they become expensive jobs.
Outside the house, check that outdoor power points have intact weatherproof covers, garden lighting cables are not sun-perished or damaged, and pool or spa equipment is on a dedicated, RCD-protected circuit. After a Sydney storm, look at your switchboard for tripped breakers, sniff for any burning smell near outlets, and avoid touching anything wet near power until a sparky has cleared it.
Why DIY Is Off the Table in NSW
Almost all fixed electrical work in NSW is licensed-only. That covers replacing a powerpoint, swapping a light fitting, or any wiring change. DIY work voids home insurance, fails on a sale inspection, and in the worst case lives quietly inside the wall until something burns. We have been called in to fix plenty of these, usually after a sale inspection flags them. Any new work should come with a Certificate of Compliance for Electrical Work (CCEW) from a licensed sparky.
Book a Safety Check With Olympic Electrical
If your switchboard is showing its age, your smoke alarms are past their date, or no one has checked the system in a while, Olympic Electrical can run through everything in one visit. Same-day availability, fixed upfront pricing, and a lifetime labour guarantee on every job.
Get in touch with Olympic Electrical for a free quote on a home safety inspection today.
