---
title: How Much Does House Rewiring Cost in Sydney? A Complete Guide
description: How much does house rewiring cost in Sydney? Typical Australian price ranges for full and partial rewires, what drives the cost, what quotes include and exclude, warning signs and how to budget.
url: https://russoelectrical.com.au/house-rewiring-cost-sydney
date_modified: 2026-11-03
author: Russo Electrical
language: en_US
---

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Rewiring a house is one of the most important, and most misunderstood, electrical projects a homeowner can take on. It is not simply changing a few wires. A proper rewire replaces ageing or unsafe cabling, upgrades protection at the switchboard, adds or repositions power points and lighting circuits where needed, tests the entire installation, and leaves the home compliant with current electrical safety requirements.

Key takeaways
## The short version

- **Typical full rewire:** about $8,000 to $23,000 in Australia, with a modelled midpoint of around $15,500.
- **Standard three-bedroom home:** many NSW guides place it at roughly $8,000 to $15,000.
- **Partial rewires:** can start from around $3,000 to $4,000.
- **Large or complex homes:** two-storey, heritage or hard-to-access homes can exceed $25,000.
- **Circuits and access drive the price** more than floor area, because most of the cost is labour.
- **Get at least three itemised quotes** and check what is excluded, especially patching and painting.

In this guide

1. [What is house rewiring?](#what-is-rewiring)
2. [Why rewiring matters](#why-it-matters)
3. [How much does rewiring cost?](#cost)
4. [What drives the cost](#cost-drivers)
5. [What a quote includes and excludes](#inclusions)
6. [Signs your home may need rewiring](#signs)
7. [Full versus partial rewire](#full-vs-partial)
8. [How long a rewire takes](#timeline)
9. [How to budget and get quotes](#budget)
10. [FAQ](#faq)

## What is house rewiring?

House rewiring is the process of replacing some or all of the electrical wiring in a home. In a full rewire, a licensed electrician removes or isolates obsolete cabling and installs new circuits from the switchboard to power points, lighting points, switches and, often, fixed appliances.

A full rewire usually includes:

- New cabling for lighting and power circuits
- A new or upgraded switchboard where required (see our [switchboard upgrade service](https://russoelectrical.com.au/services/switchboard-upgrade/))
- Safety switches, also known as residual current devices (RCDs)
- Circuit breakers
- New power points, switches and light fittings where specified
- Earthing and bonding upgrades
- Testing of every circuit
- Compliance documentation

In NSW, electricians must lodge a Certificate of Compliance for Electrical Work (CCEW) with Building Commission NSW and, where applicable, the electricity network. That certificate is important: it is evidence that the electrical work has been completed, tested and documented to the applicable safety requirements.

### Rewiring versus an electrical upgrade

Rewiring is different from an electrical upgrade. An upgrade might involve adding a circuit, replacing a switchboard, installing safety switches or adding power points. A rewire is broader: it addresses the condition and capacity of the wiring system itself.

## Why rewiring matters

Electrical wiring does not last forever. Insulation can become brittle, connections can loosen, and older systems were not designed for the demands of a modern household.

Decades ago, a typical home needed power for lights, a fridge, a television, a washing machine and a few small appliances. Today, Sydney homes commonly run air conditioning, [induction cooktops](https://russoelectrical.com.au/services/induction-cooktop-installation/), dishwashers, dryers, computers, home-office equipment, [EV chargers](https://russoelectrical.com.au/services/ev-installation/), solar inverters, pool pumps and numerous electronic devices. Older wiring and switchboards may not safely support that load. Our guide [Does my home have enough electrical capacity?](https://russoelectrical.com.au/does-my-home-have-enough-electrical-capacity/) explains this in more detail.

The risks of outdated wiring include electric shock, overheating, arcing, electrical fires, damaged appliances and repeated circuit failures. Deteriorating insulation or outdated components can increase the risk of shock or fire even when problems are not immediately visible.

A rewire is not only a convenience upgrade. In many cases, it is a safety investment.

## How much does house rewiring cost in Australia?

Rewiring costs vary substantially because no two homes, or electrical installations, are identical. However, current published Australian estimates provide a useful planning range.

| Project type | Typical cost range | What it usually covers |
| --- | --- | --- |
| Partial rewire, small area | $3,000 to $4,000+ | Selected circuits or one section of the home |
| Two-bedroom home | $4,000 to $8,000 | Fewer circuits and generally simpler access |
| Standard three-bedroom home | $6,500 to $15,000 | Full rewire, often including switchboard work. $8,000 to $15,000 is a common NSW range |
| Four-bedroom home | $8,000 to $14,000+ | More rooms, circuits, fittings and labour |
| Large or complex home | $18,000 to $34,000 | Two storeys, heritage features, poor access, extensive restoration |
| Broad national range | $3,500 to $25,000 | Depends on size, scope, access and switchboard requirements |

One Australian cost guide places a typical house rewire between $8,000 and $23,000, with a midpoint of about $15,500. NSW-specific guidance commonly quotes $8,000 to $15,000 for an average three-bedroom home, with small partial rewires starting around $3,000 and larger or older homes reaching $15,000 or more.

**Quick budgeting figure:** many Sydney homeowners can reasonably plan around $10,000 to $15,000 for a standard single-storey three-bedroom home, then adjust upward for a larger home, a switchboard replacement, difficult access or extensive repairs. These ranges are a guide only. Your price depends on an inspection of your home.
A national average is only a starting point. A small, accessible home with a modern switchboard may cost far less than a larger home with concealed wiring, heritage finishes, or a switchboard that must be completely replaced.

## What drives the cost of a house rewire?

The biggest mistake homeowners make is assuming rewiring is priced mainly by floor area. Floor area matters, but it is only one part of the calculation. Electricians price a rewire based on the number of circuits, fittings, access conditions, switchboard requirements and the amount of restoration needed. The number of outlets and circuits often matters more than square metres, because most of the cost is labour to access walls, ceilings and subfloors, not the cable itself.

### Home size and number of rooms

A larger home usually needs more circuits, power points, lighting points and cable runs. A four-bedroom home will usually cost more than a two-bedroom home, even if both have similar layouts. But size alone does not tell the whole story: a compact home with many rooms, high ceilings, a detached garage, outdoor lighting and a pool circuit can cost more than a larger but simpler home.

### Number of circuits

Each circuit needs cable, protection at the switchboard, labour to route the cable, testing and documentation. Common circuits include:

- Lighting and general-purpose power circuits
- Kitchen appliance, oven and cooktop circuits
- Air-conditioning and hot-water circuits
- Garage, shed and outdoor power and lighting
- Pool pump or equipment circuits
- EV charger and solar or battery-related circuits

The more circuits required, the higher the cost.

### Switchboard condition

The switchboard is the control centre of the home’s electrical system. If it is old, overcrowded, unsafe or lacks modern safety switches, it may need replacing or a major upgrade during a rewire. A switchboard upgrade can include a new enclosure, new circuit breakers, safety switches, surge protection, correct labelling, extra circuit capacity and earthing improvements.

Older homes with rewireable ceramic fuses, limited safety protection or no space for new circuits often need this work. A switchboard without safety switch (RCD) protection is one sign a property may need rewiring or a significant upgrade. See real examples in our [switchboard load centre upgrade in Gladesville](https://russoelectrical.com.au/case-studies/switchboard-load-centre-upgrade-in-gladesville/) and [switchboard upgrade in Abbotsford](https://russoelectrical.com.au/case-studies/switchboard-upgrade-in-abbotsford/).

### Accessibility

Access is one of the biggest cost variables. A single-storey home with a roof space and accessible subfloor is usually easier and cheaper to rewire than a double-brick home on a concrete slab. Where cables must run through walls without roof or underfloor access, the electrician may need to cut channels, lift floorboards, remove sections of plaster or use alternative routing methods. That adds labour time, materials and restoration costs.

### Age and construction of the home

Older Sydney homes can present extra challenges:

- Brittle or deteriorated insulation, including old rubber-insulated or fabric-covered cable
- Lead-sheathed or other outdated cable types
- Limited earthing and old fuse boards
- Asbestos-containing materials, including some older switchboard panels
- Heritage-listed features
- Solid brick or concrete construction
- Restricted roof or underfloor access

### Restoration and make-good work

Many electrical quotes include the electrical work but exclude patching, plastering, painting and cosmetic restoration. This is a major source of confusion. If an electrician needs to open a ceiling, chase a wall or remove plasterboard, the quote may cover the safe installation and testing, but not the repairs and repainting afterwards. Before accepting a quote, ask exactly what make good means:

- Patching holes and sanding?
- Painting and matching existing finishes?
- Replacing plasterboard?
- Cleaning up dust and debris?

### Certification and compliance

Certification costs are usually a small part of the overall budget, but should never be overlooked. In NSW, your electrician must lodge a CCEW for the work. A reputable electrician will clearly state whether testing, compliance certificates and any network notifications are included in the quote.

Older home?
## Book a wiring and switchboard inspection

Our licensed Sydney electricians check your wiring, switchboard and earthing, then give you a clear, itemised scope and quote.

[Book Quote Now](https://russoelectrical.com.au/request-a-quote/)[(02) 5839 3156](tel:+61258393156)Online Now

## What a rewiring quote includes and excludes

### Typical inclusions

A professional rewiring quote should be detailed enough to compare line by line. A comprehensive quote may include:

- Site inspection and electrical assessment
- Removal or safe isolation of old wiring
- New cabling for lighting and power
- New switchboard or switchboard upgrade
- Safety switches and circuit protection
- Power points, switches and, where included, light fittings
- Earthing and bonding
- Cable routes through roof, walls or subfloor
- Testing of all circuits and the compliance certificate
- Clean-up of the electrical work area
- Warranty on workmanship

Be cautious with quotes that simply say full rewire without listing the number of power points, light points, circuits, switchboard inclusions or exclusions. Two quotes can look similar on paper while covering very different work.

### Common exclusions

Many homeowners are surprised by costs outside the electrical quote. Common exclusions include:

- Plastering, wall and ceiling repairs, and painting
- Floorboard replacement, carpet lifting and reinstatement
- Asbestos removal
- Furniture removal and temporary accommodation
- Landscaping restoration
- Data cabling, security systems and smart-home wiring
- EV charger supply upgrades
- Solar isolator or inverter modifications

None of these exclusions is necessarily unreasonable. The key is transparency: ask the electrician to list what is excluded, so you can budget for the whole project, not just the electrical part.

## Signs your home may need rewiring

Not every electrical problem requires a full rewire. But these warning signs mean the wiring should be inspected promptly by a licensed electrician.

### Frequent tripping or blown fuses

Occasional tripping can happen when a circuit is overloaded or an appliance is faulty. Repeated tripping, especially across several circuits, can point to overloaded wiring, failing connections or an installation that cannot handle modern demand. Our [switchboard support service](https://russoelectrical.com.au/services/switchboard-support/) can find the cause.

### Flickering or dimming lights

Lights that dim when a large appliance starts may indicate an overloaded circuit, loose connection or inadequate supply. Persistent flicker across several rooms is more concerning than a single faulty lamp.

### Hot, discoloured or scorched outlets

Power points, switches or cover plates that feel warm, look discoloured, smell burnt or show scorch marks should be treated as urgent. These can indicate overheating, loose connections or failing components.

### Buzzing, crackling or burning smells

Electrical systems should be quiet. Buzzing or sizzling from outlets, switches, light fittings or the switchboard can indicate arcing or a loose connection. A persistent burning smell is a serious warning sign.

### Shocks or sparks

Even a mild shock when touching an appliance, switch or power point is not normal. Sparks when plugging in or unplugging devices are also a warning sign.

### Old wiring materials and missing earthing

Old rubber-insulated, fabric-covered or lead-sheathed cabling may be due for replacement, because these cable types deteriorate over time. Missing or inadequate earthing can also mean the installation predates modern requirements.

### Relying on extension leads

Using extension leads and power boards as permanent solutions usually means the home does not have enough power points in the right places, and it increases the risk of overloading.

### The age of your home

Age alone does not mean a rewire is needed, but it is a strong reason to arrange an inspection. Industry advice suggests assessing wiring that is more than 25 to 30 years old if it has never been upgraded, and homes over 40 years old in particular.

**Burning smells, smoke, sparks or shocks need urgent attention.** Switch off the affected circuit if it is safe to do so, and call a licensed electrician. Read [what to do in an electrical emergency](https://russoelectrical.com.au/5-things-you-can-do-in-an-electrical-emergency/).

## Full rewire versus partial rewire

A full rewire replaces the wiring throughout the home. A partial rewire replaces only selected circuits or areas.

| Factor | Full rewire | Partial rewire |
| --- | --- | --- |
| Best for | Old, damaged or unsafe wiring throughout the home | Damage limited to one area or a few circuits |
| Switchboard | Often replaced or upgraded at the same time | Suitable when the switchboard is adequate |
| Renovations | Extensive renovations | A renovation affecting part of the home |
| Upfront cost | Higher | Lower, and can be staged |
| Long-term result | One consistent, modern, testable installation | Old and new wiring coexist, which can complicate future fault finding |

Partial rewiring costs less initially, but it can become more expensive over time if several stages are needed.

## How long does a house rewire take?

A typical full rewire of a three-bedroom house takes roughly five to seven working days, including installation, fit-off, testing and certification. Depending on size and complexity, a full-home rewire can take anywhere from three to ten days. The work usually happens in stages:

1. **Initial assessment:** the electrician inspects the switchboard, wiring, earthing and circuits, and identifies safety risks and access constraints.
2. **Scope and quote:** a written scope covering the circuit layout, fittings, switchboard work and exclusions.
3. **Isolation and removal:** the supply is safely isolated, and old wiring is removed where accessible or safely decommissioned.
4. **Rough-in:** new cables, mounting boxes and switchboard connections are installed while walls and ceilings are accessible.
5. **Fit-off:** power points, switches, light fittings and cover plates are installed, and circuits are connected and labelled.
6. **Testing:** continuity, insulation resistance, polarity, earth fault-loop impedance, safety switch operation and circuit protection are all checked.
7. **Certification and handover:** the CCEW is lodged, and you receive documentation, warranty details and a walk-through of your new switchboard.

If you are living in the home during the rewire, expect disruption. Power will be off for periods, furniture may need to be moved, and some rooms may be inaccessible. Some homeowners choose to move out temporarily during the main cabling stage.

### Rewiring during a renovation

The most cost-effective time to rewire is often during a renovation. With walls, ceilings or floors already open, cable routes are easier to reach. It can reduce wall and ceiling opening costs, restoration costs and labour time, and avoids disturbing newly finished surfaces later. If you are planning a kitchen, bathroom, extension or major interior renovation, have the electrical system assessed before construction begins.

## How to budget and get accurate quotes

### Build a realistic budget

- **Electrical quote:** for a standard three-bedroom Australian home, a reasonable planning range is often $8,000 to $15,000, though the final figure can be higher.
- **Switchboard upgrade:** confirm whether the quote includes a new switchboard, safety switches, surge protection and extra circuit capacity.
- **Restoration costs:** if plastering, patching, painting and floor repairs are excluded, get separate quotes.
- **Contingency:** allow 10% to 20% for older or complex homes, in case opened walls reveal damaged cables, poor past repairs or asbestos.
- **Temporary living costs:** consider whether you need somewhere else to stay or other cooking arrangements.

### Get at least three itemised quotes

Three quotes let you spot outliers and compare scope. Be wary of a quote far lower than the rest, as it may leave out switchboard work, restoration, testing or certification. Ask each electrician for a written breakdown of:

- Number of circuits, power points and light points
- Switchboard work and safety switches
- Cable type, routing and access method
- Testing and certification
- Exclusions, payment schedule and warranty terms

Confirm exactly what full rewire means: every room, the garage and outdoor circuits, oven, cooktop, hot water and air-conditioning circuits, smoke alarm circuits, and any data or smart-home wiring.

### Check licensing and insurance

Only a licensed electrician can do rewiring work. Ask for their licence details and insurance, and the compliance documentation they will provide. Read [5 things to know before hiring an electrician in Sydney](https://russoelectrical.com.au/5-things-to-know-before-hiring-an-electrician-in-sydney/).

### Ways to reduce the cost, safely

- **Rewire during a renovation,** when walls and ceilings are already open.
- **Keep the existing layout** where possible, adding only the power points you really need.
- **Stage the work** if your electrician confirms it is safe to prioritise the highest-risk circuits first.
- **Plan future needs now,** such as EV charging, air conditioning or solar, to avoid reopening surfaces later. If you are moving off gas, see our [gas-to-electric conversion](https://russoelectrical.com.au/services/gas-to-electric-conversion/) service.
- **Prepare the home** by clearing access to the roof space, subfloor, switchboard and work areas.

## Common rewiring mistakes to avoid

- **Choosing the lowest quote** without comparing scope. It may leave out the switchboard, restoration, certification or enough circuits.
- **Ignoring the switchboard.** New wiring on an inadequate switchboard may not deliver the safety or capacity you need.
- **Underestimating restoration.** Budget for plastering and painting if they are not included.
- **Adding too few power points.** It is cheaper to add them during a rewire than later.
- **Forgetting future needs** such as EV charging, solar, batteries, air conditioning or a home office.
- **Delaying urgent repairs.** Burning smells, hot outlets, sparks, repeated tripping or shocks should not wait for a renovation.

### Is rewiring covered by insurance?

Insurance cover varies by policy. Home insurance may cover sudden electrical damage from an insured event, but it generally does not pay to upgrade old or deteriorated wiring as routine maintenance. Check your policy and speak with your insurer before relying on it.

## FAQ

How much does it cost to rewire a three-bedroom house?
In Australia, a standard three-bedroom full rewire commonly costs about $8,000 to $15,000. The final price can be higher depending on access, circuits, switchboard condition and restoration needs.

How much does a partial rewire cost?
A partial rewire can start around $3,000 to $4,000, depending on the number of circuits and access conditions.

Does rewiring include a new switchboard?
Not always. Some quotes include it, others list it separately. Always ask for the switchboard scope in writing.

Does rewiring include painting?
Often not. Electrical quotes usually cover making the installation safe and working, but plastering and painting may be excluded.

How long does a full rewire take?
A typical three-bedroom full rewire takes about five to seven working days. Larger or more complex homes can take longer.

Can I stay in my home during a rewire?
Sometimes, yes. Expect noise, dust, limited power and restricted access to some rooms. For extensive work, some homeowners stay elsewhere temporarily.

Is rewiring worth it?
If the wiring is old, unsafe, overloaded or unable to support modern appliances, rewiring can significantly improve safety, reliability and capacity. Warning signs such as repeated tripping, flickering lights, hot outlets, buzzing, burning smells and old cable types should be assessed promptly.

## Final thoughts

House rewiring is a significant investment, but it is also one of the most valuable safety upgrades an older home can receive. In Australia, a realistic planning range for a full rewire is $8,000 to $23,000, with many standard three-bedroom homes around $8,000 to $15,000. Partial rewires may start near $3,000 to $4,000, while complex homes can exceed $25,000.

The final cost depends less on the size of the home and more on the number of circuits, the condition of the switchboard, access to walls and ceilings, the age of the installation and how much restoration is needed. Get detailed written quotes, confirm inclusions and exclusions, budget for restoration and contingencies, and use a licensed electrician who provides proper testing and certification.

Ready to talk?
## House rewiring with Russo Electrical

Licensed Sydney electricians for rewiring, switchboard upgrades and safety inspections, with itemised quotes and full compliance paperwork.

[Book Quote Now](https://russoelectrical.com.au/request-a-quote/)[(02) 5839 3156](tel:+61258393156)Online Now
Keep reading
## More from Russo Electrical

[Switchboard upgradesModern protection and capacity planning.›](https://russoelectrical.com.au/services/switchboard-upgrade/)[Switchboard defects and defect noticesWarning signs and what to do next.›](https://russoelectrical.com.au/switchboard-defects-and-defect-notices-in-sydney/)[Top 5 electrical hazardsAnd how to avoid them at home.›](https://russoelectrical.com.au/top-5-leading-electrical-hazards-and-how-to-avoid-them/)[Meter box and switchboard upgradeA real job in Five Dock.›](https://russoelectrical.com.au/case-studies/meter-box-and-switchboard-upgrade-in-five-dock/)
Independent information
## Sources and official resources

- [NSW Government: Electrical safety requirements and consumer rights](https://www.nsw.gov.au/legal-and-justice/consumer-rights-and-protection/safety/electrical-safety/electrical-safety-requirements-and-consumer-rights)
- [NSW Government: Electrical safety in the home](https://www.nsw.gov.au/housing-and-construction/safety-home/electrical-safety/electrical-safety-home)
- [FairCost: House rewire cost in Australia](https://www.faircost.com.au/cost/electrician-rewire)
- [GoingRate: Rewiring house cost calculator](https://goingrate.com.au/trades/rewiring-house-cost)

Prices change. Ranges are a guide only. Get a written, itemised quote based on an inspection of your home.

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