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.
Signs your property needs rewiring
Round-pin sockets, fabric or rubber-insulated cabling, a fuse box with a wooden back, or lights that dim when an appliance switches on are all signs the wiring is overdue for replacement. Most UK wiring is rated to last 30 to 40 years before it needs a full rewire.
Electrical safety for landlords
Since 2020, landlords in England must have an EICR carried out every 5 years and provide a copy to tenants. Failing to do so can result in a fine of up to £30,000. If an EICR flags unsatisfactory work, it has to be fixed within 28 days or a shorter period the report specifies.
LED lighting and energy-saving rewires
Swapping halogen downlights for LEDs is usually straightforward, but older dimmer switches often aren't compatible with LED drivers and need replacing alongside the bulbs, or you'll get flickering or a limited dimming range. If you're rewiring a room anyway, it's worth speccing LED-compatible circuits from the start rather than fixing dimmer compatibility later.
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.
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.
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.
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.