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.
Wiring a loft conversion
A loft conversion typically needs new lighting and socket circuits, often a new consumer unit way if the existing one is already at capacity, and mains-wired interlinked smoke alarms are usually required by building control as part of the sign-off, not just recommended.
Electrical adaptations for accessibility
Lowering socket heights, adding lighting controls that don't need fine dexterity, and wiring in advance for a stairlift or hoist are common accessibility adaptations. Planning the electrical work alongside any wider accessibility renovation avoids re-opening walls or floors that were only just closed up.
How long does electrical work take?
A socket or switch swap is usually under an hour. A consumer unit replacement is typically a full day, often with the power off for several hours. A full rewire in an occupied property commonly takes 5 to 10 days depending on size and access, plus time afterwards for plastering and redecorating that isn't part of the electrical work itself.
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.
Red flags in a cheap electrical quote
A quote significantly below the others is worth asking about before accepting — check it includes a proper consumer unit (not a budget one that doesn't meet current standards), covers making good afterwards, and includes the certificate you're entitled to for notifiable work. Cash-only, no fixed address, and no registration number are all worth asking about directly.
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.
When does a consumer unit need replacing?
Older fuse boxes with rewireable fuses or plastic (rather than metal) casings don't meet current wiring regulations and are a common reason a rewire quote comes in higher than expected. A modern consumer unit uses RCBOs, which cut power to a single faulty circuit rather than the whole property.