—Wiring and circuits
Adding a new socket
A new socket is a small job that is easy to get wrong. The questions are which circuit feeds it, and where the cable runs.
Adding a socket means connecting it to an existing circuit or running a new one. An existing circuit may have capacity for another socket, or it may already be heavily loaded — kitchen and home-office circuits often are. The appliances you plan to use matter: a socket for a phone charger is different from one for a heater or coffee machine.
Wiring guides explain how circuits are put together and changed, so a quotation or a recommendation is easier to follow.
The cable route is the other question. In block walls cables can be chased in; in concrete or finished walls surface trunking may be preferable; in villas, routes through false ceilings are common. Positions should suit furniture and use, with sockets placed where they avoid trailing leads and adaptors.
01In short
The points that matter most
Capacity matters
The circuit must carry the new load safely.
Route decides disruption
Chasing, trunking or ceilings each have trade-offs.
Position for use
Place sockets where appliances actually go.
02Detail
How it is planned
Circuit assessment
Existing load and protection on the circuit.
Cable route
Through walls, ceilings or trunking.
Testing
The extended circuit is tested before use.
03Checklist
Before asking
Mark the spot
Where you want the socket.
List what will plug in
Especially high-power items.
Photograph nearby sockets
Helps identify the circuit.
04Questions
Questions people ask
- Can a socket be added from an existing one?
- Sometimes, if the circuit has capacity and the arrangement suits it.
- What height should sockets be?
- It depends on use and furniture; agree heights before installation.
- Is surface trunking unsightly?
- Neat trunking can be discreet and avoids wall damage.
- Can sockets be added outdoors in the same way?
- Outdoor sockets need weatherproof fittings and suitable protection; see the outdoor sockets guide.
05Related
Related guides
- Moving a socket or switchMore on the circuits behind the same problem.
- Replacing extension leads with fixed socketsMore on the circuits behind the same problem.
- Surface or concealed wiringA related choice for the same kind of work.
- MCB or RCBOA related choice for the same kind of work.
This guide sits under electrical wiring. All topics are on the guides page.
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