Free 60-Second Checker
Is My House Wiring Too Old?
Answer a few quick questions about when your home was built, what's on the switchboard and what you've noticed — and get a straight answer on whether your wiring deserves a professional look.
Age alone isn't the problem — age plus neglect is
Plenty of older Sydney homes have perfectly serviceable wiring, because someone rewired them along the way. The risk sits in homes running original rubber-insulated VIR cable, boards with ceramic fuses and no safety switches, and consumer mains sized for the loads of 1960 carrying the loads of today.
If your board is the weak point, our guide to the risks of delaying a switchboard upgrade covers what's at stake, and the switchboard upgrade quiz gives you a board-specific answer in a minute.
Frequently asked questions
How long does house wiring last?
Modern PVC-insulated wiring commonly lasts 40+ years in good conditions. Older types age much worse: rubber-insulated VIR cable (common before the 1950s–60s) perishes and cracks, and early plastic insulation from the 1960s–70s can also become brittle. Heat in roof spaces accelerates all of it, which is why age plus symptoms — not age alone — is what matters.
How do I know if my home has old VIR (rubber) wiring?
Age is the first clue — homes built before the 1950s–60s that have never been fully rewired are the prime candidates. Visual clues include cotton-braided cable in the roof space, ceramic fuse holders on the switchboard, and wiring run on ceramic cleats or in old metal conduit. Don't handle suspect cable yourself; a licensed electrician can confirm it during an inspection.
Does an old home always need a full rewire?
No. An inspection with insulation resistance testing shows which circuits are still sound. Some older homes only need the worst circuits replaced plus a switchboard upgrade with safety switches on every circuit; others are better fully rewired, especially during a renovation when walls are already open.
What are the warning signs of failing wiring?
Frequent blown fuses or tripping breakers, flickering or dimming lights, discoloured or warm power points, burning smells, buzzing at the switchboard, and tingles from taps or appliances. Tingles and burning smells are urgent — stop using the affected circuit and call a licensed electrician.
Is this checker a substitute for an electrical inspection?
No — it's a guide to help you judge whether an inspection is worth booking. Only a licensed electrician testing the actual circuits can tell you the condition of your wiring. Sydney Power Group can inspect the wiring, switchboard and consumer mains in one visit.