Obviously any power, whether sockets or lights, when used outside has a much higher risk of serious electric shock due to contact with “true earth” outside.
Any new socket MUST be fitted with RCD protection to ensure compliance with the wiring regulations. This is of especial importance when used with outdoor sockets. This is why you should always used a qualified and registered electrician to complete this work on your behalf.
Although separate to a socket installation, we can self certify installation of new circuits to feed outdoor sockets, as well as other items requiring garden or external power. This comes complete with all appropriate certification, Part P notifications & full 6 year warranty!