Old and faulty wiring can be a major risk in a property, so if you have any wiring issues in your home you’ll need to organise rewiring. We’ve put together this guide to show you the average cost to rewire a house in the UK.
Whether you’ve bought a new property or you’re looking to upgrade the wiring in your existing house, this guide shows you costs to help you plan your budget
We spoke to the online estimators at My Build Estimate – a professional estimating company monitored by the Royal Institute of Chartered Surveyors (RICS). They’ve provided us with their estimated average prices for costs to rewire a house in the UK.
|Size of property||Range - Low||Range - High||Average cost|
How much does it cost to rewire a house?
The cost of rewiring your home will depend on a number of factors, with size being one of the most important. Small flats will cost a lot less than large houses.
On average, the cost to rewire a 1-bed flat is around £3,000. For a 2-bed flat the cost is about £3,500, and for a 3-bed flat that cost goes up to nearer £4,500.
Cost to rewire a 3 bedroom house
The average cost to rewire a 3-bedroom house is in the region of £5,750. Depending on the size and layout of the property, it should take 6-10 days to carry out the rewiring work.
How much does it cost to rewire a 4-bedroom house?
If you’re looking to remove and replace wiring, the average cost to rewire a 4-bed house is somewhere between £6,000 and £9,000. On average, it takes 1-2 weeks to complete all the work – though the bigger the house, the longer it will take.
What’s included in the cost of rewiring a house?
The rewiring process usually takes place in two stages. Firstly, the old wiring is removed and replaced with new wiring. Secondly, the new switches, sockets and other fittings are installed and the system connected to the power and made live.
In general, the price you’re quoted to rewire your house will include:
- Removal of old fittings and wiring
- New wiring throughout the property
- Standard white finish electrical accessories (e.g. socket outlets and switches)
- Installation of a new metal consumer unit
- Minor plastering work to fill small holes
- Circuit testing and final installation certification to prove all work meets current regulations (don’t hire any tradespeople who can’t offer certified electrical work)
The price your quote for the rewiring generally won’t include any major plastering work, decorating or carpet fitting needed – you’ll need to get separate quotes for those jobs.
When hiring a tradesperson, we always recommend asking for a clear description of what is included in the prices they are quoting. That way there are no costly surprises later on.
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Factors affecting the cost to rewire a house
As with most home improvement projects, there are a number of factors that affect the overall price you’ll pay to rewire your house. The main ones are:
- Size and layout of the property
- Quality of fixtures and fittings
- Number of socket outlets
- Complexity of the existing wiring system
- Whether the home is occupied (electricians work a lot faster in empty properties)
- Where you live
|Size of property||Average report cost|
|1-2 bed house||£175|
|3-4 bed house||£225|
|5+ bed house||£375|
Electrical Installation Condition Report (EICR) costs
Building regulations in the UK state that your electrical installation should be tested every ten years, if you own your home. If you are a landlord, or live in a rented property, this check should be done every five years.
The Electrical Installation Condition Report (EICR) will highlight any issues with your home’s electrical installation, including faulty connections, poor wiring or short circuit protection.
The report must be carried out by a qualified electrician and will include the following:
- Inspection of the consumer unit or fuse board
- Inspection of a sample of switches, sockets and other fixtures
- Checking the polarity of the installation
- Testing any protective devices to ensure they are safe and working properly
The average cost for an EICR can range from £150 for a 1-bed flat, up to £375 for a 5-bed house.
|Additional job||Range||Average cost|
|Replace a light fitting||£40-£60||£50|
|Install security light with motion sensor||£100-£150||£125|
|Install CCTV system||£750-£2,000||£1,375|
Additional costs to rewire a house
If you’re hiring an electrician to rewire your house, there may be additional jobs that you might want or need them to do. Replacing a light fitting will cost you around £50. You might want to add a security light with a motion sensor, which will cost about £125.
If you’re planning to upgrade your home security even further, the cost of installing a CCTV system is in the region of £1,375. For more information on security systems, check out our guide to CCTV installation costs.
|Labourer||Rate range (per day)||Average cost (per day)|
One of the main factors that contributes to the total cost of rewiring a house is the labour. It’s most likely that you’ll need different tradespeople to complete the work.
The average day rate of an electrician is £300 per day. If you have carpet that needs taking up, replacing or refitting then you’ll need a carpet fitter for a cost of around £180 per day. And, if you need a general labourer, their standard rate is around £100 per day.
Other costs to consider
Rewiring a house can be a very fiddly and messy job. Ideally you’ll need to remove as much furniture from your home as possible, including taking up any carpets (as the rewiring job will usually need floorboards to be lifted). This means you may need to hire furniture removal and/or storage companies.
A full rewire project may also mean that your property is without power for extended periods of time. If this is the case, you may need to move out temporarily – so you may incur accommodation costs during that time.
Does my house need rewiring?
It’s often very difficult to spot electrical issues yourself. The best way to find out if your house needs rewiring is to hire a qualified electrician to carry out an EICR.
That said, there are a number of signs that could indicate there are problems with your home’s electrical system. These include:
- Your consumer unit trips out regularly
- You hear a crackling or buzzing noise around any of your electrical sockets or equipment
- Fuses or bulbs that keep blowing regularly
- Any electrical wires covered in black rubber, lead or fabric
- Signs of discolouration or burning on or around any of your electrical fittings
- Flickering lights
Also, you may need to upgrade your electrical system if you have an out-of-date fuse box. You can check this by looking at the date on the consumer unit – there’s usually a printed label on the inside of the consumer unit door.
Useful house rewiring checklist
- Identify any specific issues with current electrical, if relevant.
- Organise an EICR to establish the condition of your wiring, and always ask for official certification.
- Always hire a qualified electrician with the appropriate accreditations to ensure all their work will meet current regulations – such as being registered as a competent
- person with organisations like NICEIC or ELECSA.
- Shop around a number of qualified electricians for fair and competitive prices.
- Make sure any electrician you hire shows you their public liability insurance and a warranty policy, in case you need cover should any of their work go wrong.
- Always ask for certification after any electrical work has been completed – electricians in England and Wales are legally obliged to comply with Part P of the Building Regulations.
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