How Much Does It Cost to Rewire a House in Scotland? (2026)

It's easy to get lost in the numbers when there is so much conflicting information out there about house rewires in Scotland. The result can be putting the decision off because you don't know where to look or who to turn to.

The guide range we published in March was £3,500 to £6,000 for a standard three-bedroom house. Your current quote may be different. Whether the house is empty, how we get the cables through it and what you want fitted all make a difference.

So, there's a starting reference. The useful bit is understanding what applies to your house.

So, £3,500 to £6,000

That was the guide for a standard three-bed when this article was first published on 16 March 2026. Get a current written quote before committing to the work. The original range didn't specify VAT, so don't assume it is VAT-inclusive. Check the total and what's included.

Take an empty house with a loft that has proper headroom and timber floors upstairs. There are usable routes to pull cable through without fighting the building at every turn. Not too complex a job.

Now add new downlight positions in every ceiling, outdoor sockets front and back, a garage supply and provision for an EV charger, solar and battery storage. Same bedrooms. A different amount of work.

NICEIC identifies property size, the condition of the existing wiring, access, occupancy and the extent of the work as important cost factors. That's why the quote needs to describe the installation, not just say "three-bed rewire".

Want a price for your own house? Request a rewire quote. Tell us your postcode, property type and whether anyone is living there. We'll discuss the work and arrange a survey where needed.

Have a look at your consumer unit

From the outside only. Don't remove covers or pull out fuse carriers.

An old rewireable fuse box is a reason to have the installation checked. It doesn't tell you the age or condition of every cable behind the walls. A house can have wiring from different periods, and you can't work out what needs replacing just from the board's appearance.

When we rewire, the circuit layout and cable sizes are designed for the property and what the circuits will supply. Not every house needs the same arrangement. The consumer unit and protective devices need to suit that design too, rather than being chosen from a generic shopping list.

Then second fix: your sockets and switches and whatever fittings you've picked. Then testing, including insulation resistance, continuity, polarity, loop impedance and the protective devices. Certify it. Hand it over.

Our rewiring service page gives around five to ten working days for a full rewire. That's a guide to the electrical work, not a promise that the plasterer and decorator will also be finished. Agree the programme for your house before booking time off or arranging to move out.

Empty house vs lived-in house

This can make a big difference to the job. It's worth having the conversation before anything starts.

Take an empty ex-rental where the carpets have already been lifted. No furniture to shift. No need to work around someone cooking dinner or taking a call in the room where the floor needs to come up. There's space to get on with the work.

Now put a family into the same house. Every room needs protecting. Furniture needs moving. The family still needs access to the kitchen and bathroom, and the power arrangements need planning around the work. You can't assume every circuit can safely be put back into use each evening.

Then there's the wardrobe the owner doesn't want moved. Fair enough. But if it's sitting in front of the route we need, there's another conversation to have. Move it, protect it, find another route. None of that is the same as walking into an empty room.

Look, if you've just bought a place and you're not in yet, get the rewire planned before you bring everything through the front door. It can avoid paying for work around furniture and finished rooms. There isn't a fixed saving for every house, though, and accommodation or storage can cost money too.

NICEIC's rewiring guide also explains the extra planning, disruption and access problems involved in occupied rewires.

You might not even need one

Here's the thing though.

An old fuse box or flickering lights can make you think the whole place needs ripped out. That isn't a diagnosis. Testing may show that the wiring is suitable to keep and the work needed is a consumer unit upgrade and some local repairs. That's not a full rewire.

Ask about an EICR first if the condition is uncertain. It checks the installation rather than guessing from how old the accessories look. Before booking, agree what the inspection will cost and how long it'll take for your property.

Electrical Safety First recommends having an owner-occupied home's electrics inspected and tested every ten years. Follow any recommendation to have yours checked sooner, and get faults looked at when they appear. The ten-year interval is general UK guidance.

If a socket is hot, a switch has brown stains around it or you can smell burning plastic, stop using the affected equipment and get an electrician to investigate promptly. The same goes for shocks or repeated tripping. Where there's an immediate safety concern, don't wait for a routine inspection appointment.

Even a serious fault can be confined to one part of the installation. The electrician needs to find out what's wrong before telling you how much wiring needs replacing.

Access

Picture a detached house in Dollar with a clear loft void and accessible floorboards upstairs. There's room to work and somewhere to run the cables. In a ground-floor flat in Stirling Old Town, you might be dealing with solid floors, stone walls and no useful voids at all. Getting a cable through that flat is a different job.

We may need to cut channels into masonry or lift more flooring to reach the rooms we're wiring. Sometimes surface trunking is worth discussing because hiding the cable would mean opening up too much of the room. With stud walls or accessible voids, we have other routes to consider.

Tell us which floors you're keeping, where the fitted furniture is and whether you've just decorated. We can then talk through what needs opening up before you agree to the work and the price.

Shared areas in a tenement need discussing too, if the work will affect them. And let us know about listed status or restrictions on altering the building before we settle on cable routes.

And who's fixing the walls afterwards?

On our rewiring service page, we describe filling the cable chases to a bonding-coat finish. The final plaster skim and decorating usually come afterwards, so there can still be work to arrange once we're finished.

Get that finish written into the quote. If it only says "making good", ask how far that goes: filling the channels, skimming the walls or painting the room. You need to know where the electrician's work ends and what you're paying someone else to do.

Sort out who lifts and puts back the flooring, who removes the waste and who books a separate plasterer if one is needed. Include those costs when you're comparing quotes.

Board swap or full rewire

If the existing circuits are suitable to keep, replacing an old consumer unit and carrying out any necessary repairs may be enough. Ask for a price based on what the electrician finds in your installation. We've gone into more detail in our fuse box guide for EV chargers.

There may also be a case for replacing only some circuits or wiring in particular rooms. For a partial rewire, the electrician needs to establish what can safely stay and whether it will suit the alterations you're planning.

A photograph of the fuse box won't settle any of this. Even with a new board, you could still have deteriorated insulation, poor connections or unsuitable wiring further along a circuit. Assessing the supply, earthing, bonding and existing circuits is part of working out what needs doing.

Sticking a new board on top of unresolved wiring faults is putting a fresh coat of paint over the problem. Looks better from the outside. Doesn't fix what's underneath.

Sort the extras while the house is open

If you intend on having more work carried out later, like EV charging or solar installation, consider the provision now. Think whilst the floors are up and the routes are accessible. We're already there.

Running suitable cable or leaving a useful duct at that stage can avoid another visit to open finished rooms. It isn't automatically the same cable for every charger or garage, though. The equipment, length of the run and installation conditions determine what's needed. Sometimes keeping a route available is better than guessing at equipment you haven't chosen.

A supply to the garage for a bench grinder and whatever else. Outdoor sockets on the patio so you stop threading an extension lead through the kitchen window for the pressure washer. Provision for a battery inverter. Cat6 drops while the routes are accessible, because trying to retrofit network cabling through a finished house can be a proper pain.

And interlinked alarms. Scotland requires interlinked smoke and heat alarms, but suitable sealed, tamper-proof lithium-battery interlinked alarms can meet the existing-home standard. They don't all have to be hardwired. Ordinary standalone alarms with replaceable batteries aren't the same thing.

A rewire is still a sensible time to discuss mains-powered alarms. Building work can bring additional requirements, so agree the system for the actual project rather than assuming any battery alarm is wrong or every rewire needs the same alarm circuit.

We do EV chargers, solar PV and battery storage as well as rewiring, so tell us what's on the list. It makes little sense to fit a new board with no room for planned additions and only discuss the garage or driveway once the floors are back down.

Paperwork in Scotland

A full rewire should come with an Electrical Installation Certificate, including the inspection and test records. It records the new installation and the standard it was designed and tested to. Keep it filed with the house paperwork. It's not the same as an EICR on an existing installation, and missing records can cause awkward questions when you sell.

Building warrants are where Scotland gets specific. England and Wales' Part P electrical notification system doesn't apply here. Scotland uses its own building standards and warrant system.

The warrant question depends on the building and the work. Scottish Government guidance describes a general house exemption where there is no storey above 4.5 metres, subject to exceptions. Structural work and work affecting a separating wall can change the answer. It isn't simply a count of the bedrooms or storeys.

Flats aren't covered by that general house exemption, but other exemptions for qualifying replacement work may apply. Check the actual scope with the council's building standards team before starting. Work that doesn't need a warrant must still meet the applicable standards.

Where a warrant is required, obtain it before work starts and agree the completion route. A Scottish Approved Certifier of Construction can certify relevant work through the approved scheme. That is separate approval, not something every NICEIC-registered electrician automatically holds. The installation certificate and the building-warrant paperwork aren't interchangeable.

For work planned this autumn: the IET and BSI published Amendment 4 to BS 7671 on 15 April 2026, with the previous version withdrawn on 15 October 2026 after the transition period. Ask which edition the work is being designed to. A standards update by itself doesn't establish that your house needs rewiring.

What to budget

For a house in the Stirling, Falkirk, Bridge of Allan or Perth sort of area, use the earlier guide as a reference, then get a current price for your property. Agree the sockets, lights, consumer-unit work and any extras. Check VAT, plastering and decorating before deciding what the finished job will cost.

Ask about an EICR if you don't know whether the installation needs replacing. If a full rewire is already established as necessary, discuss the survey and quote rather than assuming another report is always needed first. Either way, make the decision from the installation's condition, not from a late-night panic scroll through Mumsnet.

And if you're going to do it, do it once. Plan for the things you already know you want. Sort the routes while the floors are up. Get the smoke alarms checked. Don't finish every room and only then ask about an EV charger or battery storage.

If backup power is on your mind, we wrote a separate piece on home battery backup in Scotland that covers what can keep the lights on during a power cut.

---