Understanding the labour vs materials split
Materials — consumer units, cabling, sockets, fittings — are usually a smaller share of an electrical quote than labour, particularly for jobs involving lifting floors or chasing walls. If a quote seems unusually cheap, check whether it's using a lower-spec consumer unit or cabling than a competing quote, not just a lower labour rate.
Outdoor and garden electrics
Outdoor sockets, garden lighting, and supplies to sheds or outbuildings need weatherproof (IP-rated) fittings and their own RCD protection — standard indoor sockets and cabling aren't rated for outdoor use. This is notifiable work under Part P if it involves a new circuit.
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.
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.
New build and extension electrical work
Wiring an extension or new build from scratch is different from rewiring an existing room — it's planned around final wall positions and fittings before plastering, so timing with your builder matters. First-fix electrical work (cabling inside walls) has to happen before plastering; second-fix (sockets, switches, fittings) after.
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.
How electrician quotes work
Describe the job, including property type, access, and whether the work is notifiable if you know. Electricians use this to give an initial estimate, then confirm the final price after seeing the job in person — particularly for anything involving old wiring, where the scope can change once cables are exposed.