Consumer unit replacement

Is replacement the right work?

Replacement may be considered when an assessment identifies that the existing board is unsuitable for the proposed installation or work. A recurring trip alone does not establish that a new unit is needed. If the problem is an active fault, start with consumer-unit fault assessment.

The electrician checks the existing circuits and relevant installation arrangements before agreeing the replacement scope. A new board does not remedy every defect elsewhere in the property.

Agree the work and shutdown

The proposal should identify the board specification, circuit work, access, testing and any known remedials. Tell us about occupied rooms, tenants, alarm systems and equipment that must not lose power unexpectedly. Agree who can authorise the shutdown and when the property will be accessible.

Do not remove covers or attempt to prepare the wiring yourself. Replacement and isolation are tasks for the electrician. The scope may need revisiting if inspection reveals defects that were not visible beforehand.

Testing and handover

Testing and the applicable installation documentation should form part of the agreed replacement work. At handover, ask for circuit identification, the relevant certificate, any applicable notification arrangements and an explanation of unresolved issues or restrictions. Requirements depend on the work and jurisdiction, rather than a blanket promise for every UK property.

An installation certificate records installation work. It is not the same as a separately commissioned condition report for an existing installation. Electrical Safety First provides guidance on replacing consumer units.

Book a planned assessment

Use the consumer-unit replacement cost guide to compare scope, not just a headline amount. Our call-out is £50 plus VAT (£60 total). Remaining work is quoted before starting. Send your property and access details to discuss a suitable appointment.