Adding sockets to older system?

[streetlighter]

Any chance of some pictures ?

 

[ban-all-sheds]

You should always get more than one quote anyway, and if possible get personal recommendaions for electricians.

Also, make sure they are registered - don't just take their word for it, check here: http://www.competentperson.co.uk/

Good idea to put all wiring in conduit for ease of future changes.

Think hard about where to have sockets - it's difficult to have too many, and also about what circuits to have. The items on the list below won't all apply to you, but they are worth thinking about:

• Upstairs sockets
• Downstairs sockets
• Kitchen sockets
• Radial for appliances
• Cooker circuit
• Non-RCD circuit for F/F
• Non-RCD circuit for CH boiler
• Dedicated circuit for hifi
• Dedicated circuit for IT equipment
• Upstairs lights
• Downstairs lights
• Immersion heater
• Loft lights
• Shower
• Bathroom circuit
• Alarm
• Supply for outside lights
• Supply for garden electrics
• Supply for shed/garage

Plus any peculiarities brought about by your house layout & construction - e.g. in mine because of solid floors and where the circuits run, I have a radial just for a socket in the hall, the doorbell and the porch lights.

Plus a few spares on RCD & non-RCD sides for expansion beyond that for future unforeseen needs.

Consider also specifying a CU with separate sections, not a split-load, to increase the granularity of RCD protection, or the extensive use of RCBOs on a per-circuit basis.

If you live somewhere where supplies are dodgy in the winter, have the lights, the boiler supply, and a socket in each room wired to a separate CU, or a separate section in a large one, that can be supplied by an emergency generator - lights, heating, TV and a kettle/microwave make life a lot more bearable.