Home rewiring in Sydney typically costs between $3,000 and $12,000 for a standard residential property, with most homeowners paying around $5,000 to $8,000 for a three-bedroom house. Larger homes, older wiring systems, or difficult access can push costs higher. This guide covers every major cost factor, a full price breakdown by home size, and practical tips to help you budget confidently for your rewiring project.
Understand What Home Rewiring Actually Involves
Rewiring a home means replacing all or most of the electrical wiring throughout your property. This includes cables inside walls and ceilings, power points, light switches, and the switchboard or consumer unit.
In Sydney, many homes built before 1990 still contain older wiring types like cloth-covered cables or aluminium wiring. These degrade over time and can create serious fire and safety risks. A full rewire brings your home up to current Australian Standards (AS/NZS 3000).
A partial rewire targets specific circuits or areas, such as a kitchen upgrade or adding new circuits for a renovation. Partial rewires cost less but may not address all underlying issues in an older home.
Rewiring also typically includes upgrading the switchboard to a modern unit with safety switches (RCDs) and circuit breakers, which is a requirement under NSW electrical regulations for any significant electrical work.
Compare Home Rewiring Costs by House Size in Sydney
The size of your home is the single biggest factor in your total rewiring cost. Below is a realistic price guide based on typical Sydney homes. These figures include labour and standard materials but exclude switchboard upgrades or major structural work.
| Home Size | Estimated Cost Range | Typical Timeline |
|---|---|---|
| 1-2 bedroom unit or apartment | $3,000 to $5,500 | 1 to 2 days |
| 3 bedroom house | $5,000 to $8,000 | 2 to 3 days |
| 4 bedroom house | $7,500 to $10,500 | 3 to 5 days |
| 5+ bedroom or large home | $10,000 to $15,000+ | 5 to 7 days |
| Partial rewire (single circuit or room) | $800 to $2,500 | Half day to 1 day |
These are realistic Sydney market rates for 2025. Prices can vary between electricians, so always get at least two or three written quotes before committing.
Identify the Key Factors That Affect Your Rewiring Cost
Several variables will push your quote above or below the average range. Understanding these upfront helps you avoid surprise costs during the job.
- Age of the property: Homes built before 1980 often have outdated wiring that is harder and more time-consuming to replace safely.
- Wall and ceiling construction: Brick veneer and double-brick homes common across Sydney’s older suburbs like Strathfield, Burwood, and Parramatta require more effort to run new cables than timber-framed homes.
- Access difficulty: Limited roof space, concrete slabs, or renovated ceilings make cable routing significantly harder and slower.
- Switchboard upgrade: Most rewires require a new switchboard. Expect an additional $800 to $2,000 for this depending on the size and current condition of your board.
- Number of power points and lights: More outlets and fixtures mean more cable runs and installation time.
- Asbestos presence: Older Sydney homes may have asbestos-containing materials. Disturbance during rewiring requires licensed asbestos removal, which adds cost and planning.
- Smart home or specialty circuits: Adding EV charger circuits, solar connections, or home automation wiring increases complexity and cost.
The AJ Services Group team always conducts a thorough site inspection before quoting so there are no hidden surprises on the final invoice.
Review a Detailed Cost Breakdown for a Typical Sydney Rewire
To give you a clearer picture, here is how costs typically break down for a standard three-bedroom Sydney house rewire. This assumes a timber-framed home with reasonable roof and wall access.
| Cost Component | Estimated Cost | Notes |
|---|---|---|
| Labour (electricians) | $3,500 to $5,500 | Based on $80 to $120 per hour per electrician |
| Electrical cable and materials | $600 to $1,200 | TPS flat cable, conduit, connectors |
| Power points and switches | $300 to $700 | Depends on quantity and brand (e.g. Clipsal, HPM) |
| Switchboard upgrade | $800 to $2,000 | New Schneider or Hager board with RCDs |
| Safety inspection and certificate | $150 to $300 | Certificate of Compliance required in NSW |
| Patching walls and ceilings | $200 to $800 | Often quoted separately by a plasterer |
Wall and ceiling patching is frequently overlooked in initial quotes. Ask your electrician upfront whether their quote includes making good after the cables are run, or whether you need to arrange a plasterer separately.
Know the NSW Regulations That Apply to Home Rewiring in Sydney
Electrical work in NSW is strictly regulated. All rewiring must be performed by a licensed electrical contractor holding a valid NSW Fair Trading licence. DIY electrical work beyond very minor tasks is illegal and dangerous.
Once a rewire is complete, your electrician must issue a Certificate of Compliance for Electrical Work (CCEW). This document confirms the work meets AS/NZS 3000 Wiring Rules and must be provided to you and lodged with Ausgrid or Endeavour Energy as your local network operator.
Sydney homes connected to the Ausgrid network (covering most of metropolitan Sydney) must also ensure that any work affecting the point of supply meets Ausgrid’s network standards. Your licensed electrician handles this as part of the job.
Safety switches (RCDs) are mandatory on all power and lighting circuits in any rewired home. This is a non-negotiable requirement under current NSW regulations and protects against electric shock.
Find Ways to Reduce Your Home Rewiring Cost Without Cutting Corners
Rewiring is one area where you should never sacrifice quality for price. Faulty wiring causes house fires. That said, there are legitimate ways to manage costs.
- Get multiple quotes. Three quotes from licensed Sydney electricians gives you a realistic market range and negotiating position. Avoid any quote that seems unusually low.
- Combine jobs where possible. If you are also planning a kitchen renovation or bathroom upgrade, scheduling electrical work together reduces call-out fees and travel time.
- Prepare access in advance. Clearing rooms, moving furniture, and providing easy roof access before the electricians arrive reduces billable labour hours.
- Prioritise a phased approach for large homes. If budget is tight, rewire the most critical areas first (bedrooms, kitchen) and plan additional circuits in a second stage.
- Ask about off-peak scheduling. Some electricians offer slightly better rates for jobs booked during quieter periods rather than peak demand weeks.
- Check your home insurance. Some policies include partial cover for rewiring if old wiring caused damage. Check your policy before paying out of pocket for everything.
AJ Services Group offers free no-obligation quotes for Sydney homes and can help you understand which circuits to prioritise if you are working within a tighter budget.
Recognise the Warning Signs That Your Home Needs Rewiring Now
Not every home needs a full rewire immediately, but some signs indicate it is urgent. Ignoring these can lead to electrical fires or electrocution risks.
- Flickering lights or lights that dim when you turn on appliances
- Frequently tripping circuit breakers or blown fuses
- Burning smell near power points or switches
- Discoloured or warm power points and switches
- Sparking when you plug in appliances
- Your home still has a fuse box rather than a modern circuit breaker board
- Two-pin power points instead of three-pin (earthed) outlets throughout the home
- The property was built before 1980 and has never been rewired
If you notice any of these signs in your Sydney home, book an electrical inspection as soon as possible. A licensed electrician can assess whether a full or partial rewire is needed before the situation becomes dangerous.
FAQs on Home Rewiring Cost in Sydney
How long does it take to rewire a house in Sydney?
A typical three-bedroom Sydney home takes two to four days to rewire. Larger homes or properties with difficult access may take five to seven days. Your electrician will give you a more precise timeline after inspecting the property.
Do I need council approval to rewire my home in Sydney?
You do not need council development approval for rewiring work in most cases. However, your licensed electrician must issue a Certificate of Compliance for Electrical Work (CCEW) and the work must meet AS/NZS 3000 standards. All compliance is handled by your electrician, not through council.
Can I stay in my home during a rewire?
In most cases, yes. Electricians typically work section by section, keeping parts of the home functional while they complete each area. However, expect periods with no power in certain rooms. Your electrician will advise you on what to expect day by day.
Is home rewiring covered by insurance in Australia?
Standard home insurance does not typically cover the cost of rewiring as a maintenance upgrade. However, if faulty wiring caused fire or damage, your insurer may contribute to repair costs. Always check your specific policy and speak to your insurer before starting the work.
What is the difference between rewiring and a switchboard upgrade?
Rewiring replaces the cables and outlets throughout your home. A switchboard upgrade replaces just the consumer unit (fuse box) with a modern board fitted with safety switches and circuit breakers. Many older Sydney homes need both done together for full electrical safety compliance.
How do I find a licensed electrician in Sydney for rewiring?
Always check that your electrician holds a current NSW Fair Trading electrical contractor licence. You can verify this on the NSW Fair Trading website. Ask for a written quote and confirm they will provide a CCEW on completion of the work.
Wrap Up and Next Steps
Home rewiring cost in Sydney ranges from $3,000 for a small unit up to $15,000 or more for a large home, with most three-bedroom houses falling between $5,000 and $8,000 including a switchboard upgrade. The most important step is getting a proper inspection and written quote from a licensed electrician so you know exactly what your home needs.
AJ Services Group provides free on-site quotes for home rewiring across Sydney. Our licensed electricians will inspect your property, explain what is needed, and give you a clear, itemised price with no hidden fees. Call us today or use our online form to schedule your inspection.
