Adding Plug Socket Room Cost: 2026 UK Price Guide

Running out of sockets is one of the most common household frustrations, and adding a dedicated plug socket is a relatively inexpensive electrical job. In 2026, most householders pay £100–£200 per socket for a qualified electrician to add a new double socket to an existing circuit, with the price depending primarily on how far the new socket is from an existing one and how disruptive the cable run needs to be.¹²

This guide covers the full range of scenarios, from a straightforward spur off a nearby socket to a brand-new circuit for a kitchen island or outbuilding.

Why Hire a Qualified Electrician?

Under the Building Regulations Part P (Electrical Safety – Dwellings), certain electrical work in dwellings must be either carried out by, or inspected and certified by, a competent person. Adding a new socket is notifiable if it is in a special location (the space immediately around a bath or shower) or if a new circuit is being added; since 2013 a kitchen is no longer a special location in England.³ The easiest way to comply is to use an electrician registered with a competent persons scheme (such as NICEIC or NAPIT) who can self-certify their work.⁴

DIY socket additions are not illegal in England in non-notifiable locations (e.g., adding a spur in a bedroom), but the work must still be designed, installed, inspected, tested and certificated to BS 7671, the IET Wiring Regulations.³ The current version is BS 7671:2018+A4:2026, the 18th Edition with its fourth amendment.⁵ An untested connection that causes a fire or fault could give your insurer grounds to dispute a claim.

Socket Addition Cost Breakdown

The above include labour and materials. Both spur figures are the published rate for adding a socket to an existing circuit: £100–£180 at BestBuilders, inside Checkatrade’s £100–£200 for a single or a double, average £150.¹² Electrician day rates in 2026:

Most single-socket jobs take 1–2 hours. Multiple sockets on the same visit significantly reduce the per-socket cost because mobilisation is shared.

What Affects the Cost?

Access and cable routing, the biggest variable. A surface-mounted socket on a hollow stud wall where cable can drop from above is a 30-minute job. Chasing into solid brick or concrete, running cable under concrete floors, or threading cable through a loft adds time and labour.

Type of wiring, most post-1960s homes are wired as ring mains. Adding a spur (a branch off the ring) is straightforward. However, there are limits: the usual guidance is no more than one unfused spur from each socket on the ring, feeding a single or double socket. If the ring is already heavily spurred, a new radial circuit from the consumer unit may be necessary.

Consumer unit capacity, if you need a new circuit and the consumer unit has no spare ways, either an MCB must be freed up or a new consumer unit (fuseboard) or sub-board is required. A consumer unit replacement costs £500–£900 for a standard domestic board.

Certification, the electrician issues a BS 7671 electrical installation certificate for a new circuit, or a minor electrical installation works certificate for an addition to an existing one; where the work is notifiable, their scheme also sends you a Building Regulations compliance certificate within 30 days.³ An Electrical Installation Condition Report is a different document, the periodic inspection of an installation already in use, and is not part of adding a socket. Certification adds nominal cost when issued by the installing electrician. If a third party must inspect, expect an additional £100–£200.

Room-by-Room Considerations

Living rooms and bedrooms, standard 13A double sockets. The most straightforward work; often a simple spur. It is not notifiable, but the electrician should still test it and issue a minor works certificate.³

Kitchens, kitchen socket additions are notifiable only if a new circuit is added (kitchens are no longer special locations in England).³ Sockets are conventionally kept at least 300 mm horizontally from a sink, which is settled trade practice rather than anything Part P states. Circuits must be RCD-protected. New circuits must be on their own MCB in the consumer unit. Budget £150–£300 per socket.

Bathrooms, standard 13A sockets are only allowed in a bathroom or shower room if they can be fitted at least 2.5 m from the edge of the bath or shower tray (the boundary of zone 1), which rules them out in most UK bathrooms.⁶ A shaver supply unit to BS EN IEC 61558-2-5 (typically 115/230V dual-voltage, isolated by a transformer) can be fitted closer than that.⁶ Cost: £150–£280 including the specialist socket.

Garages and outbuildings, a dedicated RCD-protected circuit is the usual approach. The cable run from the house adds significant cost; underground armoured cable (SWA) costs about £2.40–£4.60 per metre for the cable alone in the common 2.5 mm² to 6 mm² sizes, plus trenching.⁷

How Many Sockets Do You Actually Need?

There is no legal minimum number of sockets: BS 7671 sets safety requirements, not quantities. The figures below are a common rule of thumb for a comfortable modern home, not a regulation:

Older houses often fall short of these figures. If you are already having electrical work done, adding multiple sockets per visit will be more economical than returning for one at a time.

Getting the Best Price

• Bundle work, agree all additions at the outset. Electricians typically discount multi-socket jobs compared to one at a time.
• Choose surface mounting where practical. A surface-mounted plastic conduit socket is a fraction of the labour cost of a chased-in flush socket.
• Get three quotes, prices vary significantly. Avoid firms that will not provide a fixed-price quote in writing; cost-plus jobs for socket additions frequently overrun.
• Check registration, use NICEIC’s or NAPIT’s online register to verify your electrician is currently registered.