The Cost to Rewire an Entire House

All you need to know about the costs associated with rewiring an entire house including materials, labour and time frames.

Rewire House Cost

What the job entails

Complete rewiring is common job on older properties and the cost of a rewire will depend on a number of factors including location, size of the property, whether the house is occupied, any repair work required to plaster/decorating, and the type/finish of light switches and fittings specified. The bigger the property the more sockets, switches and fittings will be required, plus there will be more circuits and a larger consumer unit (aka fuse box).

It is much quicker and easier to rewire a house that is not occupied, in addition it is pretty unpleasant for the occupants living in a home being rewired - the power will be off for around a week and floorboards will be lifted and plaster cut into - it is better to move out of your house while rewiring work is in progress if at all possible! If you specify the typical white plastic for sockets/switches then this will keep the price down, whereas opting for polished brass will obviously cost a lot more!

You also should also consider that there are other jobs which will need doing at same time, for example, most electricians won’t re-plaster the walls afterwards, nor will they make good any plasterwork repairs or damage to the flooring. So it is not unusual for plasterers and decorator’s along with carpet fitters to be required after a rewiring job! Though some electricians will get in touch with other specialists and supply a complete all-inclusive quote to make good the plasterwork and flooring, though even that will be unlikely to include painting/decorating, this will almost always have to be arranged separately by the homeowner.

Having your home rewired is a messy and uncomfortable experience, even if you cannot move out, there are a number of ways you can make the whole experience go more smoothly. For example, if parking is limited outside your home use your car to "reserve" a space for the electrician’s van as close as possible. If you cannot move out for the duration, consider staying with friends for one of to nights at least, and remove as many of your possessions as you can and put them in storage, leaving any larger items in the centre of the room.

If you need to stay in the property, most electricians will rig safe power for you in the evenings at least, but you will have to put up with lots of floorboards being removed and plenty of dust! Remember that you are paying a premium hourly rate for an electrician to rewire your home, do you really want to be paying him to move your furniture around?

Although the cost will vary depending on a number of factors, there is one factor which you cannot do much about, your location! If you live in London and the surrounding areas, then according to industry research you could pay up to 45% more for a full house rewire than someone living in the north of the UK! Despite the high cost of a complete rewiring job, never be tempted to cut corners by hiring an unqualified tradesman or doing the work yourself. All rewiring work needs a safely certificate in accordance with BS7671 wiring regulations and registered with Part P building control.

To comply with these regulations, you will need to provide evidence that you are a competent person and have carried out the work out correctly. You will need to provide certification to show you are a "competent person" under the criteria of that scheme, being a decent DIY enthusiast does not make you competent when it comes to electrics!

Cost to Rewire an Entire House

The average cost to rewire an entire 3 bedroom semi-detached house is typically around £2500-£3500. The cost varies depending on the location and size of the property, material cost and if any repairs are required to any walls.

A qualified electrician will be required to complete the job and will often charge around £150 per day to rewire a house. However, for larger jobs most electricians work in pairs for safety reasons as well as to get the job done quicker. As such, you can expect to pay around £250 per day in labour. The average time an electrician will take to rewire a property will typically be 3-5 days depending on how many rooms need rewiring, if the wiring is easily accessible, as well as how much replastering work is needed. If you're going to be living in the house then this will take even longer as the electrician will have to make everything safe and working after they leave each day.

Below are some estimated costs of hiring an electrician to rewire an entire house. Please bear in mind that prices and durations can vary considerably depending upon the number of sockets, switches, fittings, etc, as well as the number of electricians that work on the job:

House Description Avg. Cost Duration
Bungalow £1500-£2000 3-4 days
3-Bedroom Semi-Detached House £2500-£3000 3-5 days
4-Bedroom Detached House £3000-£3500 4-5 days


Cost Breakdown

Individual costs for hiring an electrician to rewire a 3-Bedroom Semi-Detached House - Total Cost: £2500

40%

Materials
£1000

55%

Tradesmen
£1375

5%

Waste Removal
£125

FAQ's

If we assume a typical 3-bedroom semi-detached house which is unoccupied, emptied of possessions, and all work is done to current regulations. Then a typical cost will be round £2500.

This price will include 3 double sockets in each bedroom, 8 double sockets in the front room, 14 kitchen power points, 2 double hallway sockets, 2 hardwired smoke alarms, some down-lighters as well as the usual ceiling lighting fittings, bathroom wall light and shaver point, immersion/water heater switch if applicable, outside power point with 2 external security lights, power to garage with sockets and light, and of course a new split loaded consumer unit. At this price all fixtures and fittings will be basic, for example white plastic finish on all switches. This price will also include plastering work plus the removal and disposal of all waste material. But will not include painting, decorating or flooring costs.
Making similar assumptions the average time is between 3 and 5 days for the actual rewiring. Plus, testing would take one additional day as will the plastering. So assuming the house is empty, around 4 days to install the wiring, a further day for testing and one more day for the plastering.

So you are really looking at around 6 days in total (not including the decorating and perhaps new flooring required to finish the job properly). However, If the house is occupied and full of stuff then expect the work to take a lot longer, up to 10 days or more plus testing and plastering – so if at all possible, move out!
Always ensure that you use a qualified electrician by checking that they have Part P certification and ask for their scheme enrolment number and the registered body they belong to. You can then check online or by phone that they have the right credentials and are considered “competent” to carry out any rewiring work in your home.

When work is carried out by a professional electrician, they will deal with the necessary paperwork to comply with all the regulations on your behalf. They will also provide you with a signed Building Regulations Self Certification document together and completed Electrical Installation Certificate for your records (important if you ever sell your home to prove work was done properly and safely).