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A lot of Sydney's three-bedroom homes were built decades ago, which means a lot of them are overdue for a rewire. If yours is one of them, the first question we hear is “what's this going to cost me?” and it’s fair enough. So let's get straight to the numbers on the cost to rewire a 3 bedroom house.
Key takeaways
- Rewiring a 3 bedroom house in Sydney costs $6,000 to $9,000, though older or harder-to-access homes can run higher.
- A switchboard upgrade adds roughly $1,200 to $2,500 on top.
- Quotes on the same house can differ by thousands, so always compare what's included in addition to the total.
- The cheapest time to rewire is during a renovation, while the walls are already open.
What's the actual cost to rewire a 3 bedroom house?
For a standard 3 bedroom house in Sydney, a full rewire usually lands between $6,000 and $9,000. That covers new cabling for every circuit, fresh powerpoints and light switches, testing, and a CCEW (Certificate of Compliance for Electrical Work).
This range moves around for a few reasons. A neat 1990s brick-veneer home with easy roof access sits at the lower end. A pre-1960s home in Balmain or Glebe with old VIR (rubber) cable, double-brick walls and tight cavities sits at the upper end because the cable is harder to run and there's more of the old components that need to be removed safely. Add a switchboard upgrade and you're looking at another $1,200 to $2,500.
Why does one quote say $7,000 and another say $20,000?
It's not unusual to get two quotes on the same three-bedroom house that differ by tens of thousands. We've seen homeowners quoted $35,000 for a job that another sparky would do for a third of that. So what's going on?
Usually it comes down to what's being counted. A higher quote might include a full switchboard upgrade, asbestos removal, extra power points in every room, data and TV cabling. A lower quote might be wiring only, with all of that listed as “extra”. Neither is necessarily dodgy, but if you compare the bottom-line numbers without going through the details, you'll compare two completely different jobs.
That's why itemised quotes matter so much.
What your quote for 3 bedroom home rewiring should include
It important to see where your money goes and a fair quote will provide all the details:
- Labour: This is usually 50–70% of the total. A full home rewire is a few days of skilled work, and most of your bill is the hours, not the materials.
- Cable and materials: The wiring itself, plus powerpoints, switches and fittings.
- Switchboard: Required if your old ceramic-fuse board needs upgrading to circuit breakers and RCDs (safety switches).
- Number of points: Every extra power point or lighting outlet you add lifts the price.
- Certification: Testing and the CCEW certificate at the end.
Can a 3 bedroom house be rewired in stages?
This is the best thing you can do to manage the cost to rewire a 3 bedroom house. A partial rewire lets you tackle the most urgent circuits first. It's a practical way to spread the cost without ignoring a safety issue. A reliable sparky will tell you what you need to repair immediately and what can wait.
A Sydney electrician’s tip: if you're already renovating, rewire the house completely then. The walls and ceilings are open already. So access is easy and you avoid paying twice to cut into and patch up the same plaster.
Get a fair quote on your 3 bedroom home in Sydney
Every three-bedder is a little different, so the only way to know your real number is to have someone take a look. We're your local Inner West and Sydney electricians for the job. Send an inquiry to get your quote or call us at 0481 228 836 for more information.
