Key Takeaways
- A full rewire of a typical 3-bedroom Sydney home is published at $9,200–$23,000, with $13,800 as the typical figure, according to whatsthedamage.com.au’s Sydney rewiring guide (prices verified October 2026). Larger and heritage homes can go higher.
- Labour, not cable, drives the bill. Most of the cost is skilled days spent running cable, terminating every point, testing and certifying. That’s why access, wall type and the age of the house matter more than square metres.
- Quotes often leave out plastering, painting and asbestos handling. Two quotes with the same headline number can cover very different scopes.
- A partial rewire is cheaper but only makes sense when the remaining wiring is sound. Once an electrician finds perished rubber or old cloth-insulated cable on one circuit, it is usually on the rest too.
- Every compliant rewire in NSW ends with a Certificate of Compliance for Electrical Work (CCEW), which the electrician has to give you after the work. Don’t pay the final invoice until you have it.
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Sydney has a lot of old wiring. Federation cottages in the Inner West, interwar bungalows across the North Shore, double-brick houses in the south-west and 1960s fibro homes everywhere in between were all wired to the standards of their day. Many still run on rubber- or cloth-insulated cable, ceramic fuses and switchboards that predate safety switches. When the lights flicker, a breaker trips every time the kettle and the heater run together, or an insurer or electrician flags the switchboard, the same question comes up: how much does a full rewire actually cost?
The honest answer is a wide range, and the reasons for that range matter more than any single number. A two-bedroom apartment with accessible ceiling space and a three-storey terrace with solid masonry walls are completely different jobs, even if they have the same number of power points.
This guide works through published 2026 Sydney price ranges, what actually moves a quote up or down, which costs are usually left out, how full and partial rewires compare, and how to judge whether a quote is fair. Every dollar figure here comes from a named public source. Where there isn’t one, this guide reasons through the job instead of putting a guessed figure on it.
What a Full Rewire Costs in Sydney in 2026
The most detailed current Sydney-specific figures come from whatsthedamage.com.au, an independent Australian cost guide whose Sydney rewiring page was last verified in October 2026. Its ranges are below. National figures are included for context, and they show why a Sydney quote often looks higher than what you see in a generic Australian search.
| Job | Published range | Typical | Source |
|---|---|---|---|
| Full rewire, 3-bedroom Sydney home | $9,200 – $23,000 | $13,800 | whatsthedamage.com.au (Sydney, Oct 2026) |
| Partial rewire, per room (Sydney) | $1,150 – $3,450 | $2,075 | whatsthedamage.com.au (Sydney, Oct 2026) |
| Switchboard upgrade (Sydney) | $1,025 – $3,225 | $2,075 | whatsthedamage.com.au (Sydney, Oct 2026) |
| New power point, per point (Sydney) | $170 – $345 | $230 | whatsthedamage.com.au (Sydney, Oct 2026) |
| Electrician day rate (Sydney) | $805 – $1,200 | $975 | whatsthedamage.com.au (Sydney, Oct 2026) |
| Full rewire, national (all home sizes) | $2,000 – $12,000 | $7,000 median | Airtasker cost guide (Australia-wide) |
Why the Sydney figures sit above the national ones
The national Airtasker range includes regional jobs, small homes and simpler builds, so its median is pulled down by work that doesn’t look much like a Sydney rewire. Sydney adds higher trade labour costs, a large stock of older masonry and heritage homes, and tighter access. Think of narrow terraces with no side access, strata buildings with rules about working hours, and inner-city parking that turns every material run into a small logistics exercise.
Why the day rate matters more than the per-point price
The same guide estimates 5–8 working days for a full rewire of an average Sydney home. At its typical day rate of $975, that’s $4,875–$7,800 in labour for one electrician, before materials, the switchboard and any second worker. Many full rewires use two electricians, or an electrician and an apprentice, to get the house back on power sooner. That arithmetic explains most of the gap between a cheap and an expensive quote. The question to ask is how many person-days the electrician has allowed and why. Comparing per-point prices tells you much less.
What Actually Moves a Sydney Rewiring Quote
Wall construction and access
This is the biggest single factor. Timber-framed walls with plasterboard or fibro lining let an electrician “fish” new cable down through the cavity from the roof space or up from the subfloor, with only small holes to patch. Double-brick and solid masonry walls, which are common in older Sydney homes, have no cavity. New cable has to be chased into the brick or run in surface-mounted conduit, and both take longer. Chasing also leaves rendering and painting behind it. A low, tight roof space or a slab-on-ground floor with no subfloor access has a similar effect, because it removes the easy routes.
Age and heritage
Federation and Victorian terraces are some of the most complex rewires in Sydney. Ornate ceilings, original plaster, timber joinery that can’t simply be cut, and the extra care these homes need all add time. Heritage-listed properties, or homes in a heritage conservation area, may also limit where new switches, conduits or external cabling can go. That should be confirmed before quoting, not discovered halfway through.
Point count and scope creep
A rewire replaces what exists, but most owners use it as a chance to add what’s missing: more power points in kitchens and bedrooms, USB outlets, data cabling, outdoor power, and dedicated circuits for an induction cooktop, a ducted air conditioner or a future EV charger. Each extra point adds to the price, using the per-point range above as a rough guide, and each new high-load circuit can push the switchboard and main supply requirements up too.
The switchboard
An old board with ceramic fuses, or one with no room for the RCD-protected circuits that modern wiring rules call for, will be replaced as part of a full rewire. Some quotes include it and others list it separately. Check which one you’re looking at before comparing totals. If you’re planning solar or a battery, size the new board for that load now. Our Sydney solar vs traditional electricity cost breakdown explains why the switchboard often becomes part of that conversation anyway.
Full Rewire vs Partial Rewire: How the Two Compare
Not every old house needs a full rewire. Some need one or two circuits replaced, a new switchboard and a safety inspection. The table below sets out the trade-offs.
| Factor | Full rewire | Partial rewire |
|---|---|---|
| Published Sydney cost | $9,200 – $23,000 (3-bed, typical $13,800) | $1,150 – $3,450 per room (typical $2,075) |
| Typical duration | About 5–8 working days | Often 1–2 days |
| What gets replaced | All cabling, switches, outlets, light points and usually the switchboard | Specific circuits or problem areas only |
| Best when | Original rubber, cloth or degraded cabling runs through the house, or a major renovation is already opening walls | Wiring is mostly modern PVC cable with one damaged or overloaded section |
| Main risk | Upfront cost and disruption | Paying twice if old cable is later found elsewhere |
| Disruption | Power cut in sections, walls opened, often furniture moved | Localised, usually one or two rooms |
When partial stops making sense
The deciding question is what the rest of the cable looks like. If an electrician opens a light fitting in one room and finds brittle rubber insulation, the same cable almost certainly runs through the rest of the house, because it was installed at the same time. Paying to rewire two rooms now and four more in a few years usually costs more than doing the whole house once. That’s especially true when you add a second round of plastering and painting.
Signs your Sydney home may need a full rewire
- Ceramic fuses or a switchboard with no safety switches (RCDs).
- Cable with cloth, braided or crumbling rubber insulation visible at fittings or in the roof space.
- Light switches or power point covers that are warm, discoloured or buzzing.
- Repeated breaker trips or blown fuses under normal household loads.
- Two-pin power points, or no earth on older circuits.
- The house hasn’t been rewired since it was built and is several decades old.
The Costs That Usually Aren’t in the Headline Quote
The gap between the quoted price and the final cost usually comes from items the electrician doesn’t do. Check each of these before you sign.
Plastering, patching and painting
The Sydney guide quoted above explicitly excludes plaster patching and making good from its rewiring figures. Some electricians do basic patching and leave painting to you. Others leave walls with neat but open holes. In a masonry home with chased walls, rendering and repainting can become a separate trade job of its own, so get that quote alongside the electrical one. If the rewire is part of a bigger renovation, it’s usually cheaper to time it so a single round of finishing covers everything. Our guide to small bathroom remodel costs in Sydney covers how trade sequencing affects the total on wet-area jobs.
Asbestos
The NSW Government’s asbestos guidance warns that homes built or renovated before 1990 are likely to contain asbestos. Older switchboard backing panels and some wall and eave linings are common examples. A sound, undisturbed board isn’t dangerous, but removing it during a switchboard upgrade must be done safely, and some jobs need a licensed removalist. That’s a separate cost. Ask your electrician whether they’ve allowed for it or whether it’s an exclusion.
Network and metering work
If the rewire includes upgrading the main supply, for example to support an EV charger, ducted air or an induction cooktop, work on the service line or meter may involve your distributor or a Level 2 accredited service provider, and it may be billed separately. A standard rewire inside an existing supply often won’t need this, but ask.
Smoke alarms, data and extras
Replacing or hardwiring smoke alarms, running data cabling, adding outdoor lighting or relocating the switchboard are all common add-ons that should be listed as line items. Leaving them as “allowances” makes the final bill hard to predict.
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Compliance: What a Legitimate Sydney Rewire Includes
In NSW, electrical installation work must be done by a licensed electrician. The electrician must also provide a Certificate of Compliance for Electrical Work (CCEW), required under the Gas and Electricity (Consumer Safety) Act 2017 and its 2018 Regulation. According to NSW Government guidance, the CCEW has to be submitted within seven days of completing the safety and compliance testing, and you, the customer, always get a copy. Where switchboard work is involved, a copy also goes to the distributor and the regulator.
New and altered domestic circuits must also meet the Australian wiring rules (AS/NZS 3000). In practice, a rewired house should come back with RCD (safety switch) protection on its final subcircuits. If a quote doesn’t mention safety switches, testing or the CCEW, treat that as a warning sign rather than a saving.
| Check | What a good quote shows | Red flag |
|---|---|---|
| Licence | Contractor licence number on the quote, checkable on the NSW Government licence register | No licence number, or “cash, no paperwork” |
| Certification | CCEW and testing listed as included | No mention of certification |
| Safety switches | RCD protection specified on the new board | Reusing an old board “to save money” |
| Scope | Point count, circuits and switchboard itemised | A single lump sum with no breakdown |
| Exclusions | Plastering, painting and asbestos clearly stated | Exclusions only discovered on the final invoice |
Which Option Is Right for You?
Work through these questions before you talk to an electrician. The answers will point you towards a full rewire, a partial rewire, or an inspection first.
- Has the house ever been rewired? If not, and it’s decades old, plan for a full rewire and treat anything less as a bonus.
- What’s in the switchboard? Ceramic fuses or no RCDs usually mean the board is being replaced either way, which pushes the decision towards doing the wiring at the same time.
- Are walls being opened anyway? If a kitchen, bathroom or extension renovation is already planned, rewiring during that work avoids paying for finishing twice.
- Is the problem localised? One overloaded kitchen circuit in an otherwise modern installation is a partial-rewire job.
- What will the house need in five years? Solar, a battery, an EV charger or a move off gas all add load. Sizing the rewire and board for that now is far cheaper than retrofitting.
- Can you live elsewhere for part of the job? Moving out, even for a few days, usually lets the electrician work faster and can shorten the job.
How to Get Started
1. Get an inspection, not just a phone quote
No reputable electrician can accurately price a full rewire without seeing the roof space, subfloor, wall construction and switchboard. Expect a site visit. Some electricians charge for a detailed inspection and report, which is often worth paying for on an older home.
2. Collect at least three written, itemised quotes
Ask each electrician to quote the same scope: the number of points, circuits, switchboard specification, RCD protection, testing and the CCEW. Ask them to list their exclusions. Then compare person-days and inclusions as well as the totals.
3. Decide on your extras before work starts
Adding a power point once walls are closed costs far more than adding it on day one. Walk through each room and mark where you want outlets, switches, lights, data and future high-load circuits.
4. Line up the finishing trades
Book plastering and painting to follow the electrician, and confirm who is responsible for making good each hole.
5. Get the paperwork before the final payment
Before you make the last payment, make sure you have the CCEW, test results and a labelled switchboard. Keep them with the house records. Insurers, buyers and future electricians will all ask for them.
Frequently Asked Questions
How much does it cost to rewire a 3-bedroom house in Sydney?
The most current Sydney-specific published figure is $9,200–$23,000, with $13,800 as typical, from whatsthedamage.com.au’s Sydney rewiring guide (verified October 2026). Masonry walls, heritage features, poor roof or subfloor access, and extra points or circuits push a quote towards the top of that range or beyond it.
How long does a full rewire take?
The same guide estimates about 5–8 working days for an average Sydney home, longer for heritage homes or difficult cable runs. A partial rewire is often 1–2 days.
Can I stay in the house while it’s rewired?
Often, yes. Power is usually cut in sections rather than all at once, but walls may be open and some rooms out of use for days. Families with young children or people working from home sometimes move out for the noisiest part of the job.
Is a partial rewire cheaper in the long run?
Only if the rest of the wiring is genuinely sound. If the house still has its original rubber- or cloth-insulated cable, a partial rewire usually defers the cost rather than saving it, and you pay for disruption and finishing twice.
Do I get a certificate after a rewire in NSW?
Yes. Your electrician must provide a Certificate of Compliance for Electrical Work (CCEW). NSW Government guidance says it must be submitted within seven days of completing the safety and compliance testing, and the customer always receives a copy.
Does home insurance or a building inspection care about old wiring?
It can. Pre-purchase building and electrical inspections routinely flag old switchboards and deteriorated cabling, and some insurers ask about wiring age. A CCEW and labelled modern switchboard are the simplest evidence that the work has been done properly.
The Bottom Line on Rewiring Costs in Sydney
A full rewire is one of the least visible renovations you can pay for, and one of the most important. The published Sydney ranges give you a realistic starting budget. Your own quote will depend mostly on how easily cable can get through your walls and how much you add while the walls are open.
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For homeowners, the practical steps are simple: get the house inspected, compare itemised quotes on the same scope, budget separately for plastering and possible asbestos handling, and don’t finish paying without a CCEW in hand.
Old wiring rarely fails at a convenient time. Pricing a rewire before it becomes urgent lets you choose your electrician, your timing and your scope. You won’t be rushed into whoever can come out tomorrow, and that’s usually where the real savings are.
About RankBurn: RankBurn publishes cost and comparison guides for Australian homeowners and business owners. Prices in this article come from the public sources named in the text, current at the time of writing. Treat them as a budgeting guide and confirm them with written quotes from licensed electricians.