Do I need an electrical certificate to sell my house?
There's no legal requirement to provide one, but conveyancing solicitors routinely ask whether any electrical work done during your ownership was certified, and a missing certificate for notifiable work (a rewire, a consumer unit change, a kitchen or bathroom circuit) can hold up or complicate a sale. Keep any Electrical Installation or Building Regulations certificates with your house paperwork.
NICEIC & NAPIT registration explained
NICEIC and NAPIT are the two largest government-authorised Competent Person Schemes for electrical work in the UK. Joining requires a recognised qualification (City & Guilds 2382, the 18th Edition Wiring Regulations, plus a Level 3 NVQ and City & Guilds 2391 for inspection and testing), and ongoing assessment. A registered electrician can self-certify notifiable work without a separate council inspection.
First fix and second fix, explained
On a rewire or new build, "first fix" is running cables through walls and floors before they're closed up; "second fix" is fitting sockets, switches and light fittings once decorating is done. Getting the timing right with other trades on site avoids cables being covered before they're tested.
Lighting design and circuit planning
Adding recessed downlights, under-cabinet lighting or dimmer circuits usually means new cabling even if you're keeping the existing consumer unit, since older lighting circuits weren't sized for LED transformers or multiple dimmer switches. Plan lighting changes before, not after, a room's redecorated.
Electrics in kitchens — circuits for appliances
A kitchen refit usually means new dedicated circuits for higher-draw appliances (oven, hob, dishwasher) rather than sharing a single ring main, plus RCD protection for anywhere near a sink. If you're changing the kitchen layout, plan socket and circuit positions before the units go in — moving them afterwards means lifting worktops or units again.
Garage and workshop power
Running power to a detached garage or workshop means an armoured cable, usually buried, and its own consumer unit or sub-board with RCD protection at the supply end. If you're planning to run power tools or an EV charger from it, size the supply for that from the start — upgrading later usually means digging the cable run up again.
Smart meters and electrical work
If you're having a consumer unit replaced or a major rewire, it's worth telling your energy supplier in advance — work on the supply side sometimes needs the meter isolated by the network operator, not just your electrician, and this can take longer to arrange than the electrical work itself.
How often should wiring be tested?
The IET recommends an electrical inspection every 10 years for an owner-occupied home, 5 years for a rented property, and on change of occupancy for some property types. A periodic inspection is different from routine maintenance — it's a formal check against current wiring regulations, not just a visual look.