A new consumer unit and a full rewire are different jobs. The consumer unit distributes and protects the circuits; the fixed cables, sockets, switches and connection points form the wider installation. Replacing the board can improve protection, but it does not make damaged or unsuitable wiring new.
When a consumer-unit upgrade may be discussed
An electrician may recommend a board change when the existing equipment is outdated, lacks appropriate protection or no longer suits planned alterations. The installation should be inspected and tested first. Any defects, earthing issues or remedial work should be identified rather than hidden behind a new enclosure.
When rewiring may be the larger answer
A rewire can be considered where cabling is deteriorated, alterations have left unsafe or confusing circuits, or the home needs substantially more points and capacity. It is disruptive because routes may need lifting or chasing and rooms normally need making good afterwards.
Compare the written scope
Ask what inspection and testing is included, which circuits and accessories are being changed, how disruption and making good are handled, and what certification or building-control notification will be supplied. Do not compare a board-only price with a rewiring price as if they cover the same result.
Send photographs of the existing board, the property age, known faults and your planned additions. Explore LP10 domestic electrical services or request an electrical quote.
A practical way to choose the scope
Begin with evidence rather than choosing the cheaper label. Ask for an inspection of the installation, then separate three possible outcomes: a board change with no wider alteration, a board change plus named remedial work, or renewal of some or all circuits. The decision should follow the condition and suitability of the wiring, earthing, protective devices and the additions you want. A new kitchen, shower, charger or garden room can change the required scope even when the existing lights appear to work.
Hidden work to allow for
Floor coverings, fitted furniture, tiled walls and decorated ceilings can conceal cable routes and junctions. Access may involve lifting boards, opening small areas or working through lofts and cupboards. Agree who moves furniture, protects finishes, labels circuits and makes walls or floors good. Older accessories, borrowed neutrals, undocumented alterations and insufficient bonding may only become clear during testing. If asbestos-containing materials could be disturbed, stop and obtain appropriate advice rather than including casual removal in an electrical price.
Questions to put to each electrician in writing
- What inspection and testing supports your proposed option?
- Which circuits, accessories, earthing or bonding are included and excluded?
- What happens if testing exposes additional faults after work starts?
- How will occupied rooms, floors and decorations be protected and made good?
- What certification and, where applicable, notification will be provided?
- Will power be unavailable, and for how long at each stage?
A plasterer or decorator may be needed after chasing; a carpenter may be needed where boards or fitted units require careful removal; and major new loads can require coordination with a plumber, heating engineer or charger installer. Keep those tasks distinct in the written scopes so responsibility is clear.
Use the LP10 electrical-services hub to describe the work, then request a written quote with board photographs, known faults and planned additions.