DIY electrical work vs when you need a professional
Under Part P of the Building Regulations, certain electrical work in a home is notifiable — it has to be carried out by a registered electrician who can self-certify it, or separately inspected by your council's building control. New circuits, consumer unit replacements, and any new work in a kitchen or bathroom are notifiable. Like-for-like socket or switch swaps usually aren't.
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.
What affects the cost
Cost depends on the scope of the job, how much of the property needs to be accessed, the age and condition of the existing wiring, and whether the consumer unit needs upgrading. A single socket replacement is quick and low-cost; a full rewire in an older property takes longer, partly because of the making-good work afterwards.
Common electrical jobs
Electricians handle everything from minor repairs to full rewires: replacing a consumer unit to meet current wiring regulations, adding or moving sockets and light switches, installing an EV charging point, fixing faults such as tripping breakers or flickering lights, and full or partial rewires in older properties.
Electrical upgrades: EV chargers, solar PV & smart home systems
Beyond repairs, many electricians now fit EV charging points, solar PV inverters and battery storage, and smart home systems — app-controlled lighting, heating and security. These jobs usually need a separate circuit and, for EV chargers, a dedicated consumer unit way — worth checking your existing setup can support the extra load before booking.
Rewiring a listed or period property
Listed building consent can be needed for chasing cable runs into original plaster or masonry, even though the electrical work itself is assessed the same way as any other property under Part P. Conduit and surface-mounted cabling are sometimes used instead of chasing into walls specifically to avoid this — worth discussing with an electrician who's worked on listed properties before.
Shared supplies in flats and converted buildings
In a converted property, it's worth checking whether your flat has its own independent consumer unit and meter, or shares a supply with other flats via a landlord's distribution board. Shared supplies can complicate straightforward jobs and sometimes need freeholder permission before any work starts — check this before booking rather than on the day.
Three steps to hiring the right electrician
First, confirm they're registered with NICEIC or NAPIT and ask to see their registration number. Second, get a written quote that itemises labour and materials separately, not just a total. Third, ask what certificate you'll receive when the work's done — for notifiable work, you're entitled to a Building Regulations compliance certificate.