Allow your filler of patching plaster to fully cure as stated by the manufacturers guidelines and then sand it back so that it is smooth and level with any surrounding surfaces.

changing fuses on European to UK travel adaptors - DIYnot changing fuses on European to UK travel adaptors - DIYnot

Once this is done, a minor works certificate is then issued to prove the installation has been carried out correctly.

However depending on the age of the property and how it’s wired, this may not be the case for the lighting circuit, however your Part P registered electrician will know this for sure and be able to advise on what to do if it isn’t. This will prevent the cable from chafing on the metal and wearing through the insulating outer sleeve. This is a necessary step as once the cable is filled over it’s a nightmare to have to dig it all out if it’s damaged. A short chase is then cut in the wall outside the bathroom, normally above the door where an FCU is then installed.

Wilko 1 Amp Fused Shaver Adaptor | Wilko - Wilko Site Wilko 1 Amp Fused Shaver Adaptor | Wilko - Wilko Site

If either of the above are ignored, if any issues occur and you cannot produce a certificate for the works then there is a good chance that your home insurance will be invalid, so it certainly isn’t worth the risk. As in the image above, shaver sockets are available as they’re own separate unit in their own right or are also available as part of a multi-functional unit normally featuring a light and an illuminated mirror. Where you can only install in zone 2 ensure that the you place your shaver socket as far away from any water sources as possible to reduce any chance of splashing. There are many types of adaptors on the market and knowing what is suitable for what purpose is important to get a safe and reliable result.

If it's a permanent arrangement have you thought about changing the european plugs for 3 pin 13A plugs? If you are chasing cables then you can run the supply feed cable down the chase from above and then the shaver supply back up the chase and out to the shaver socket.