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from £85 · most jobs £120 to £350

Sockets, Switches and Extra Circuits in London

Enquiries before 4pm, Monday to Friday, get a same-day response, with same-day attendance where the job and diary allow. Later enquiries are answered the next working day.

Most London homes were built for a fraction of the plug-in load we put on them now. The result is visible in almost every room: extension leads daisy-chained behind the television, adaptors stacked in kitchen sockets, and a single tired double socket serving a home office. Extension leads are fine as a stopgap; as permanent infrastructure they are a fire risk and a nuisance.

Adding sockets is usually simpler and cheaper than people expect. Many new points can be spurred or extended from the existing ring final circuit in 2.5mm twin and earth. Where the load justifies it (a garage, a loft office, a kitchen full of appliances), the right answer is a new dedicated circuit from the consumer unit.

We add and move sockets, replace switches and accessories, install USB and outdoor sockets, and run new circuits across Greater London. Every alteration is tested before it goes live, because a badly made joint hidden in a wall is worse than the extension lead it replaced.

What's included

  • New and relocated sockets

    Extra doubles where you actually need them, sockets moved for furniture or kitchen layouts, and floor or worktop points. We check the existing circuit's condition and loading before adding to it, not after.

  • New dedicated circuits

    Radial or ring circuits run from the consumer unit for high-demand areas: kitchen appliances, home offices, garages, lofts and garden buildings, in correctly sized cable with RCBO protection.

  • Accessory upgrades

    Cracked or scorched sockets and switches replaced, slimline or screwless finishes fitted, USB-C sockets added where phones and laptops live, and two-way switching changed to suit how you use the rooms.

  • Outdoor sockets

    Weatherproof IP66 sockets for garden tools, pressure washers and hot tubs, RCD protected as BS 7671 requires, with the cable route done properly rather than through a window frame.

  • Neat routing and making good

    Cables fished through voids where possible, chases cut cleanly and filled where not, and safe zones respected so the next person to hang a picture does not find your cable the hard way.

  • Testing and certification

    Every alteration is tested (continuity, polarity, loop impedance, RCD operation) and you get a Minor Works Certificate, or an Electrical Installation Certificate for new circuits.

How the job runs

  1. 1

    Tell us what you need

    A list of rooms and roughly what you want in each, with photos of your consumer unit, lets us quote most socket work without a visit. Bigger jobs get a survey.

  2. 2

    Circuit check and quote

    We confirm the existing circuits can take the additions (age, condition, loading and RCD protection), then give you a fixed written price including making good.

  3. 3

    Installation

    Most socket and switch jobs are done in half a day to a day. Power to the affected circuit is off while we work; the rest of the house stays on.

  4. 4

    Testing

    New and altered points are tested to BS 7671 before the circuit is re-energised, including RCD tests where protection is provided.

  5. 5

    Handover and paperwork

    We walk you round the new points, label anything new at the board, make good and clean up, and send your certificate.

What it costs

Work starts from £85 for a single straightforward job such as replacing a damaged socket or adding a spur in an accessible position. Most jobs, a few new double sockets, an outdoor socket, or a new circuit to a specific room, come in between £120 and £350.

The price follows three things: how many points you want (each extra point on the same visit is cheaper than the first), how the cable gets there (surface-accessible runs are quick, chasing solid walls and lifting floors takes time), and whether a new circuit is needed, including whether the board has a spare way. If your board is full or lacks RCD protection, we price the options before you commit to anything.

Sockets / switches / new circuit: your questions

How much does it cost to add a double socket?

From around £85 to £150 per socket depending on cable route and wall construction, with additional sockets on the same visit costing less each. Back to back with an existing socket is the cheap end; a solid wall far from the circuit is the expensive end.

Can you add sockets without chasing walls?

Often, yes. Cables can frequently be fished through stud walls, ceiling and floor voids, or run behind skirting. Solid Victorian brickwork sometimes leaves no choice but a chase, which we cut cleanly and fill. You know the route before we start.

When do I need a new circuit instead of extending the ring?

When the load is high or concentrated: kitchens with multiple large appliances, home offices with heaters, garages, lofts and outbuildings. A ring final has finite capacity, and BS 7671 limits how it can be extended. We check loading before adding anything, and recommend a dedicated radial when that is the honest answer.

Is adding a socket notifiable under Part P?

Adding points to an existing circuit is generally not notifiable in England (outside special locations such as bathrooms), but it still must comply with BS 7671 and be tested. New circuits are notifiable, and we handle the notification and certification.

My sockets are warm or crackle. Should I worry?

Yes, take that seriously. Warmth, crackling or scorch marks mean a loose or arcing termination, which degrades further with every use. Stop using the socket and have it looked at; the repair is quick and cheap caught early.

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Enquiries before 4pm, Monday to Friday, get a same-day response, with same-day attendance where the job and diary allow. Later enquiries are answered the next working day.

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