Does a full rewire mean ripping open every wall?

Not necessarily — a lot of it depends on the house's construction and how the original cabling was run. Some rewires are more invasive than others. We'll tell you honestly what's involved before you commit to anything.

How old does a house need to be before rewiring is likely?

There's no hard cutoff, but homes from before the 1980s are the ones we see needing it most often — that's roughly when wiring standards and materials changed for the better. A newer home with these symptoms still needs a look, though; age is a clue, not a diagnosis.

Is a full rewire always the answer if I've got one of these signs?

No. Sometimes it's one faulty circuit, not the whole house. That's exactly why a proper inspection matters more than assuming the worst — or assuming it's nothing.

5 Signs You Need an Electrical Rewire

Nobody rewires a house for fun. It's disruptive, it's not cheap, and it's easy to put off — right up until one of these signs turns from "probably fine" into "actually not fine." Here's what I'd actually be looking for, not the vague "have it checked periodically" advice you'll find everywhere else.

1. Lights That Flicker for No Obvious Reason

One flickering globe is usually just a globe. Flickering across multiple rooms, especially when something else switches on — the kettle, the aircon — is a different story. That's a sign the circuit's struggling with the load, or a connection somewhere isn't solid. Neither gets better on its own.

2. Power Points or Switches That Feel Warm

A power point should be room temperature, full stop. Warm to the touch — even just noticeably warmer than the wall around it — means current isn't flowing the way it should, usually from a loose or degraded connection. This one I'd actually call about, not just note and monitor.

3. A Burning Smell With No Obvious Source

If you've ruled out the toaster and it's still there, stop guessing. A burning smell from a wall, switch, or the switchboard itself is wiring insulation breaking down, and that's a genuine fire risk, not a "keep an eye on it" situation.

4. Breakers That Trip More Than They Used To

Circuit breakers exist to trip — that's them doing their job. What's worth noticing is a change: a circuit that never used to trip suddenly tripping weekly. That's usually deteriorating wiring or insulation, not a new appliance being greedy.

5. Discoloured or Sooty Power Points and Switches

Yellowing, browning, or actual soot marks around a switch or point are signs of past arcing or overheating — meaning it's already happened, possibly more than once, and the plastic housing is telling on it. This one doesn't wait for a convenient time to get worse.

What to Actually Do About It

None of these five things automatically means "rewire the whole house." Some are a single-circuit fix. Some genuinely aren't urgent. The only way to know which is which is to have someone actually look at the switchboard and the affected circuits, not guess from a blog post — including this one.

If you want to understand switchboard-specific signs in more depth, our Switchboard Upgrades page covers what that job actually involves, or you can request a free, no-obligation quote and we'll tell you straight whether it's a big job or a small one.