mrs-nordling wrote; "Whatever you do make sure your sparky is NICEIC registered."
WHY? THEY DO NOT HAVE A MONOPOLY ON REGISTERING ELECTRICIANS!
If the work is Part P notifiable then you need a sparky registered with a Part P scheme provider (NICEIC, NAPIT, ELECSA/ESA, BSI, CORGI) or notify your LABC directly and pay the fee. Provided they are COMPETENT and QUALIFIED, they need not be registered with ANYBODY.
I'm with NAPIT and it really p's me off when people think that NICEIC are the "CORGI" (now Gas-Safe register) equivalent for electricians. They are just a with-profit Company like any other,who run a tradesmans register - not a government body or anything. IEE write the "rules" for us (enshrined in BS7671:2008), not NICEIC! NICEIC just have good publicists!