Fuse Box & Consumer Unit Upgrades for London Properties

The terms are often used for the same part of the installation. Fuse box usually describes an older board, while consumer unit is the common name for the unit that distributes the supply and contains the protective devices for the property’s circuits.

Age alone does not confirm that replacement is needed. The condition of the unit, signs of heat or damage, the circuit arrangement, protective devices and the wider installation all need to be reviewed before the work is agreed.

Not necessarily. Tripping may come from a fault on an appliance, circuit or accessory rather than the board itself. The cause should be identified through electrical fault finding before a consumer unit replacement is treated as the answer.

A new unit cannot repair damaged or unsuitable wiring elsewhere in the property. If the connected circuits are in poor condition, separate repairs or an electrical rewiring assessment may be needed before the final scope is confirmed.

An EICR is not automatically required for every enquiry, but it can provide useful information where the condition of the wider fixed installation is uncertain. The electrician still needs to assess the existing unit and connected circuits before replacement work is agreed.

Yes. The supply needs to be isolated while the existing unit is removed and the replacement is installed. Computers and sensitive equipment should be shut down safely, and any alarms or essential equipment should be discussed before the appointment.

The time depends on the number of circuits, the condition of the installation, access, labelling and any separate faults found during testing. The expected programme can be discussed after the existing unit has been assessed.

We review the existing board, connected circuits, available labels, earthing and bonding arrangements, access and any known electrical issues. Planned additions should also be raised before the new layout is agreed.

The fault is explained before work outside the agreed consumer unit scope is added. A local problem may need a separate repair, while several affected circuits may require a wider investigation.

Moving the unit is a different scope from replacing it in the same position. The proposed location, cable routes, access and the work needed to reconnect the circuits must be assessed before it can be quoted.

Yes. Tell us about proposed circuits or fixed equipment, including an EV charger or air-conditioning supply, before the consumer unit arrangement is finalised. This helps the assessment reflect the electrical work you are actually planning.

The work may be arranged in an occupied property, but access and the power interruption need to be planned. Tell occupants in advance and identify any equipment or areas that cannot be left without power unexpectedly.

There is no single price based only on the property size. The quotation depends on the existing unit, circuit count, condition of the installation, access, planned additions and any separate repair work identified during assessment.

Provide the postcode, property type and clear photographs of the fuse box or consumer unit, labels and surrounding area. Mention the number of units, known faults, previous reports, access restrictions and any electrical additions you are planning.