Refresh a room's lights, switches and sockets safely, phase by phase, knowing when rules apply and when to call an electrician.
EL-01Plan the job and check what you're allowed to doList every light, switch and socket in the room you're updating. Follow "Which electrical jobs can I do myself? Part P explained" to check whether any part of the job is notifiable before you buy anything. Buy all faceplates, fittings and bulbs up front so the room isn't left half-done for days. If you also want extra sockets, a new circuit or downlights adding, that's first-fix work for a qualified electrician — book them in before you start.
RULES1 each · Masking tape and marker pen (for labelling circuits) 1 each · Notebook for circuit list KNOW THE RULES
Part P of the Building Regulations covers electrical work in England. Like-for-like replacement of switches, sockets and pendants is not notifiable, but new circuits or consumer unit work are — check your exact job against the Part P guide.
EL-02Get set up safely before touching anythingFollow "Electrical safety basics before you start" to gather the right tools and understand the room's circuit layout. Switch off the relevant circuit at the consumer unit, then follow "Proving a circuit dead with a voltage tester" on every switch, socket and ceiling rose before loosening a single screw. Use a cable and pipe detector before drilling into any wall or ceiling, and still assume something's there even if the detector reads clear. Label switched-off circuits with tape so nobody flips them back on while you're working.
RULES1 each · Cable and pipe detector 1 each · Two-pole voltage tester 1 each · Insulated screwdriver set KNOW THE RULES
Always isolate the circuit at the consumer unit and prove it dead with a tester before removing any faceplate or fitting, even if you're confident which circuit it's on.
EL-03Replace the switchesWork through each switch in the room one at a time, following "Replace a light switch like-for-like". Keep the old switch to hand until the new one's wired and tested, in case you need to double-check wire positions. If you find no earth wire at an old switch, or wiring that's brittle or scorched, stop and call an electrician — this turns up often in houses with older lighting circuits.
3 each · Light switch plates (matching style) 1 pack · Terminal connector blocks EL-04Replace the socketsMove on to the sockets, following "Replace a socket faceplate like-for-like" for each one in turn. Once the circuit's back on, test each socket with a plug-in socket tester before moving to the next. If a socket box feels loose in the wall, or the box itself is damaged, sort that out before fitting the new plate, not after.
4 each · Socket faceplates (double, white) 1 each · Plug-in socket tester EL-05Replace the ceiling light fittingWith switches and sockets done, fit the new pendant following "Replace a ceiling pendant light fitting". Doing this last means dust and debris from earlier work won't land on a finished fitting. If the ceiling rose has no earth terminal, or the cable looks like aluminium rather than copper, stop and call an electrician rather than guessing.
RULES1 each · Ceiling pendant light fitting 1 each · Light bulb (matching fitting) 1 each · Terminal connector block KNOW THE RULES
Missing earths or unusual cable types at an existing ceiling rose are a sign of older or non-standard wiring. This isn't something to work around yourself — get an electrician to check it.
EL-06Test everything and finish offTurn the circuit back on at the consumer unit and test every switch and socket in the room. Check the pendant works properly, including on a dimmer if one's fitted. Patch any small marks left on the wall or ceiling from the fitting changes, and tidy away old faceplates, fittings and offcuts.
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