How Much Does a House Rewire Cost?

The average cost to rewire a house will depend on the type of property and its condition, as dated properties with old wiring may need to have their house completely rewired to improve electrical safety and improve energy efficiency.

This will involve the help of a qualified electrician who will rip out the old wiring and rewire your entire house which may result in the floor being lifted or walls being damaged to access the wiring and rewiring the property in a safe and secure manner.

How much you pay to rewire a house will depend on the type of home you live in, as some homes have more wiring than others. For instance, smaller properties such as a one-bedroom flat may only cost around £2000 to £2500, while rewiring a house with two-bedrooms may range from £2000 to £3500.

The price of a house rewire for larger properties may be slightly more expensive, with three-bedroom semi-detached homes costing around £3000 to £4500, while the rewiring cost for a four-bedroom detached property could be priced at £3500 to £5,500.

What are the Additional Costs of Rewiring a House?

There are various other expenses you need to add on to your house rewire cost, including:

New Consumer Unit Cost

If you have a faulty consumer unit, then you may need to have it replaced by a qualified electrician.

The cost to replace a consumer unit will depend on the number of circuits you have, as six circuit systems tend to cost around £300 to £400 to replace, while a consumer unit with twelve circuits is normally priced at £500 to £600 for supply and installation.

It also depends on the type of consumer unit you choose. Here is a breakdown of the different types of consumer unit and the supply costs.

Split-load Consumer Unit Cost

A split load consumer unit is categorised by the position of its miniature circuit breakers (MCBs), which are normally located next to the residual current device (RCD). Split load consumer units tend to cost around £60 to £130.

Fully-loaded Consumer Unit Cost

A fully-loaded consumer unit features a full set of MCBs along with two residual current devices which enable up to 15 useable ways. This type of consumer unit tends to cost around £60 to £120.

Garage Consumer Unit Cost

A garage consumer unit is a smaller product which is normally used in garages, sheds or extensions that require an additional consumer unit to the main consumer unit in your property. They are normally priced at £30 to £60.

Dual-Split Load Consumer Unit Cost

This type of consumer unit has two sets of circuits which are powered by two separate residual current devices, as one might be used to power upstairs, while the other covers all electrical installations downstairs. Dual-split consumer units tend to cost around £40 to £130.

Domestic Switch Fuse Cost

A domestic switch fuse is another small consumer unit which normally only has one circuit and usually acts as a secondary main switch when connected to the sub-mains. The price for this type of consumer unit ranges from £30 to £80.

New Plug Socket Cost

Another common job when rewiring a house is replacing plug sockets which are outdated or faulty. To help you understand the cost of plug socket replacement, here is a breakdown of the prices for different plug sockets.

Switched Socket Cost

A switched socket is one of the most common plug sockets which normally features one or two 3-way sockets with a switch to power up each socket. A switched socket is usually priced at around £1 to £120.

USB Socket Cost

A USB socket is a modern plug socket which features normal plug sockets along with USB outlets. This type of plug socket tends to be price at £8 to £120.

Smart Socket Cost

A smart plug socket is similar to a normal plug socket, although it can be controlled from smart devices including a smartphone or home hub. The cost of a smart plug socket ranges from £20 to £190.

Wire Relocation Cost

When rewiring a house, you may need to have a light switch, or a plug socket moved to accommodate the new wiring. A professional electrician usually charges around £100 to £150 to relocate a light switch or plug socket.

New Light Switch Cost

If you need any light switches installed and connecting to the new wiring, this can be done during the rewiring. The average price of a new light switch is around £30 to £60.

How Much Do Electricians Charge to Rewire a House?

The cost to rewire a house will also depend on the labour costs. This is because the job must be completed by a qualified electrician to ensure that the work is compliant, safe and meets building regulations.

Electricians usually charge between £125 to £150 per day, so the final labour cost will depend on the size of the house. For example, the cost of rewiring a one-bedroom flat should be around around £500 to £600, while they will charge around £625 to £750 for a two-bedroom terraced.

To rewire a three-bedroom semi-detached home, an electrician will offer you a quote at around £750 to £1050, while a four-bedroom detached home could range from £875 to £1350 or more.

Rewiring a house cost may also include other tradesmen costs including the price to hire a carpet fitter to relay your carpet if the floor has been lifted up to rip out the old wiring, which will cost around £100 per day.

If any walls have been damaged when removing and installing wiring, then you may need to hire a plasterer who will charge around £75 to £125 to patch a wall, while it will cost up to £150 to re-plaster a wall.

You will also have to pay a painter and decorator to paint or wallpaper your walls which will cost around £150 to £200 per day.

How Long Does It Take to Rewire a House?

Rewiring can be quite an extensive job which can take up a lot of time, although the duration will again depend on the size and type of your home and the condition of your wiring.

If the wiring is in a significantly bad condition, then more safety measures must be put in place in order to protect the electrician from harming themselves when removing the wiring.

The time frame to rewire a one-bedroom flat is around 4 days, while a two-bedroom terraced house could take up to 5 days to complete.

Larger homes such as a three-bedroom semi-detached property usually take around 6 to 7 days to rewire, while a four-bedroom detached could range from 7 to 9 days.


Q: How disruptive is rewiring a house?

A: House rewiring is quite an extensive job which may take 5 to 10 days to complete, depending on the size of your home. It may also involve lifting up floorboards or carpet, removing wallpaper and ripping out light fixtures to remove old wiring.

During the rewire, an electrician will also ensure that the electric mains are switched off to prevent any shock incidents, so you may not be able to access electricity, including lighting and internet.

The majority of homeowners do move out of the property during a rewiring, as it allows the job to be finished quickly.

However, if this is not possible, you will need to ask your electrician if it is possible to set up a space in one room where you can keep everything you need and not be disrupted.

This may take longer as it means the electrician will not spend as much time in the property, so the rewiring could take a few days or weeks longer than expected.

Q: How can you tell if a house needs rewiring?

A: There are various signs that your house may need rewiring, for example, if your circuit breakers trip regularly or you experience any light shocks from light switches and plug outlets. Other signs include flickering or dimming lights, as well as noticeably damaged wiring and cables.

Q: How often does a house need rewiring?

A: House wiring usually lasts around 20 years if there are no complications with circuit breakers, sockets, light switches and any other electrical installations.

In some cases, you may not need new wiring for up to 40 years, although eventually, the cable’s insulation will begin to wear down, which will start to affect all electrical devices in your home.

This will enable you to use more electricity, causing your energy bills to increase, while also making your home unsafe, so a house rewiring will be legally required at this point.

Q: Can you rewire a house yourself?

A: It is possible to rewire your house on a DIY basis if you are on a budget, however, you must have all the electrical work checked by a qualified electrician who is listed under the competent persons scheme.

This will enable the work to be approved under Part P building regulations to be deemed safe and compliant.

If you have no previous experience working with wiring or electrical installations, then you should avoid doing the job yourself, as this can be very dangerous and can also be pricey in the long run – should anything go wrong.

Q: What does a house rewire involve?

A: There are two stages involved in house rewiring, including the first fix stage which is where the old wiring is removed and replaced with new wiring that is safe and complaint.

The second fix stage involves connecting everything up to the mains and making it live.

Once everything is installed, a qualified electrician will then conduct checks on all electrical installations to ensure that they are safe.

Once everything is deemed compliant, then they will issue an electrical safety certificate to the homeowner to confirm that the work is safe.


Author: Heather B

I am a seasoned copywriter from Liverpool - who after graduating with a BA (Hons) degree in English Media and Cultural Studies - went on to specialise in the creation of business and lifestyle copy for a wide range of industries across the UK and USA.