Adding extra sockets or replacing existing ones is one of the most common electrical improvements in domestic properties. In many homes, the number of outlets installed when the property was built is no longer sufficient for the range of devices and appliances in use today.
An electrician can assess the existing wiring and circuits to determine the most appropriate method of increasing socket provision. The most common approach for adding a single socket to an existing ring main is to run a spur from a nearby socket outlet or junction box.
Where the existing circuit is already near its load capacity, or where the new socket is located far from the ring main, a dedicated circuit run from the consumer unit may be more suitable. An electrician will inspect the existing installation and recommend the correct method for the specific situation.
Under Approved Document P of the Building Regulations for England, new circuits are notifiable. Like-for-like socket replacements are generally not notifiable.
Additions or alterations to existing circuits within the prescribed bath or shower areas defined by Approved Document P can also be notifiable. Outdoor areas are not generally special locations for England's Part P notification rules, although safety requirements still apply.
A qualified electrician will confirm which regulatory requirements apply to the planned work and, where required, arrange for notification or self-certification through a registered competent person scheme. For sockets in rooms containing a bath or shower, the current edition of BS 7671 (the IET Wiring Regulations) sets out the conditions under which socket outlets may be installed in those spaces.
The standard specifies zones within the room based on proximity to the bath or shower, and the requirements for socket installation differ depending on the zone and the type of protection in place. A like-for-like replacement of a socket already in a compliant position is generally treated differently from a new installation.
A qualified electrician should assess the specific room layout and the applicable wiring standard requirements before any socket work is carried out in a bathroom or shower room. For sockets intended for outdoor use, fittings with appropriate protection against water ingress must be used, and the circuit must be protected by a residual current device (RCD).
An external socket served by a new circuit is notifiable under the Building Regulations. An electrician will confirm the correct fittings and circuit arrangement for your outdoor installation.