Quick answer
The cost to rewire a house on the Northern Beaches comes down to how much of the home needs doing and how easy the wiring is to reach. A partial rewire of a few problem circuits is the most affordable scenario. A full rewire of a larger or two-storey home, a place with hard-to-access wiring, or a job that also needs the switchboard replaced all sit higher. Connery Electrical gives you a free on-site assessment and a fixed-price quote before any work starts.
Rewiring is one of those jobs people put off, right up until the lights start flickering or a power point gets warm. The wiring behind your walls does the most important work in the house and gets none of the attention. The question we hear most is simple: what does it cost to rewire? The honest answer is that it depends on a handful of specific factors, all of which we'll walk through below. You'll always get a fixed-price quote upfront after a free on-site assessment, so there are no surprises.
The honest version: No two homes are wired the same. A partial rewire of a few circuits is the cheapest scenario. Older homes that need a full rewire, have wiring that's hard to reach, or need the switchboard done at the same time naturally cost more. The only way to know for sure is a free on-site assessment.
What You're Actually Paying For
A rewire has three cost buckets: the new cabling, points, and switches, the labour to run them safely and remove the old wiring, and the making-good afterwards where walls or ceilings were opened up. A good quote is itemised so you can see each part, not a single lump sum.
1. The cabling and fittings
New cabling, power points, light switches, and any new safety switches all factor in. The more points and circuits your home has, or the more you want added while the walls are open, the more material and labour involved. Adding extra power points during a rewire is the cheapest it will ever be, so it's worth thinking about now.
2. The labour to do it safely
Running new cable through roof spaces, wall cavities, and under floors is careful, hands-on work that has to follow AS/NZS 3000. A single-storey home with an accessible roof space is the quickest. Two-storey homes, places on a slab, or homes with limited access take longer because the cable runs are harder to reach.
3. Making good afterwards
Where we open up a wall or ceiling to run cable or fit a new point, there's some patching to do afterwards. A good electrician keeps this to a minimum by planning the runs carefully, but some making-good is normal on any rewire and it's fair for a quote to account for it.
Signs Your Home Might Need Rewiring
Before you worry about cost, it helps to know whether you actually need the work. These are the warning signs we see most often across Northern Beaches homes:
- Flickering or dimming lights when appliances switch on, a sign of tired or overloaded wiring.
- Power points that are warm, discoloured, or spark when you plug something in.
- Fuses or breakers that trip often, pointing to wiring that can't handle the load.
- A burning smell near points, switches, or the board, which is a genuine fire risk.
- Old rubber or fabric-coated wiring, or a board still running ceramic fuses.
- Not enough power points, so the home runs on double adaptors and extension leads.
If any of these sound familiar, it's worth getting an assessment. Flickering lights in particular have a few possible causes, which we break down in our guide on why your lights keep flickering.
Partial vs Full Rewire
Not every home needs the lot. A big part of keeping the cost sensible is doing only what's actually required. Rewires on the Northern Beaches generally fall into the categories below, and which one your home fits is the biggest driver of cost.
| Rewire type | Cost tier | Who it suits |
|---|---|---|
| Single circuit or repair | Most affordable | One problem area, the rest of the wiring is sound |
| Partial rewire | Standard | A few aged circuits or a renovated section of the home |
| Full rewire, single-storey | Standard plus | Older homes on original wiring, accessible roof space |
| Full rewire, two-storey or large home | Higher | More circuits and harder cable access |
| Rewire plus switchboard upgrade | Higher | Old wiring and an old board, best done together |
The honest reality: a quote that seems suspiciously cheap usually means corners are being cut. Watch for no Certificate of Compliance, no mention of safety switches, or no proper look through the roof and under the floor before quoting. Connery Electrical quotes itemised so you can see exactly what's included.
Seven Things That Push Your Quote Up (or Down)
Every home is different, which is why the range is so wide. These are the factors that move your quote, in rough order of impact.
- How much of the home is rewired. A partial rewire of a few circuits is far cheaper than doing the whole house. This is the single biggest variable.
- Single or two-storey. A second floor means harder cable runs and more time, especially where there's no easy roof or floor access.
- Wiring access. An open, walkable roof space and a sub-floor you can get under keep the job clean. Concrete slabs, low roofs, and finished ceilings make it slower.
- Number of points and circuits. More power points, lights, and circuits mean more cable, more fittings, and more labour.
- Whether the switchboard is done too. If the board is also old, bundling a switchboard upgrade with the rewire is the smart way to do it and saves a second visit.
- Occupied or empty. A rewire staged room by room around a living family takes longer than a clear run through an empty home.
- Making-good. Homes with delicate plaster, heritage features, or finished walls need more careful patching afterwards.
What a Fair Rewiring Quote Should Include
A proper rewiring quote is itemised, not a single lump sum. When you're comparing quotes on the Northern Beaches, look for these items broken out:
- New cabling, power points, switches, and light fittings as agreed
- Safety switches (RCDs) on the circuits that need them
- An assessment of the switchboard and whether it needs work too
- Labour to run the new wiring and remove the old
- Making-good where walls or ceilings were opened
- Testing, and a Certificate of Compliance (legally required in NSW)
- Warranty on the work
Red flag: If a quote skips the Certificate of Compliance or doesn't mention safety switches, walk away. Both are essential for safe, legal wiring, and both are things a licensed NSW electrician includes as standard.
Ways to Keep the Cost Reasonable
Safe wiring is non-negotiable, so cutting corners on cable or skipping the Certificate of Compliance is never the right move. But there are sensible ways to keep costs reasonable.
- Do only what's needed. If only part of the home has aged wiring, a partial rewire fixes the problem without paying for the whole house.
- Bundle related work. If the board is old too, or you're renovating anyway, do it all in one visit and save on call-outs and patching.
- Add points now, not later. While the walls are open, extra power points cost a fraction of what they would as a separate job down the track.
- Fix it before it fails. A planned rewire is cheaper and calmer than an emergency call-out after a circuit burns out.
- Get two or three quotes. Not to haggle, but to spot the one that didn't look in the roof or left off the Certificate of Compliance. Those aren't the cheap ones, they're the risky ones.
Why Northern Beaches Homes Often Need Rewiring
A lot of homes across Balgowlah, Manly, Fairlight, Seaforth and surrounding suburbs were built between the 1950s and 1980s, and plenty still run some of their original wiring. Add decades of salt air, roof-space heat, and a load those old circuits were never designed for, things like air con, induction cooktops, and EV chargers, and you get a higher rate of homes that are due for a rewire.
It's not universal. Newer builds and fully renovated homes often have modern wiring with capacity to spare. But if your home is original and you're noticing any of the warning signs above, an assessment is well worth it before you add any big new load.
What the Job Actually Looks Like
From the homeowner's side, a rewire is more straightforward than it sounds. Here's the rough shape of it:
- Free on-site assessment. We check the wiring, the board, and the access, then write up a fixed-price quote.
- Plan the work and agree how it's staged, so power is only off in the area being worked on.
- New cabling run through the roof, floor, and wall cavities, new points and switches fitted, old wiring removed.
- Everything tested, power restored, and a Certificate of Compliance issued.
- Making-good where needed, and a quick walkthrough so you know what's been done.
The Bottom Line
For most Northern Beaches homes, the cost of a rewire comes down to three things: how much of the home needs doing, how easy the wiring is to reach, and whether the switchboard needs attention too. A detailed, itemised quote from a licensed electrician is the only way to know for sure, and any good sparky will do the assessment for free.
Want a no-obligation quote on your home? Connery Electrical rewires homes across the Northern Beaches. See our residential electrical service or call 0421 755 198.
