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Replacing a consumer unit: what to discuss before booking

Planning · EA1 Services · 21 September 2026

A consumer unit upgrade involves more than choosing a new box for the wall. A useful quote starts with the existing installation, the work proposed and how the property will be used.

Start with the installation you already have

Tell the electrician why you are considering replacement. You may have an inspection report, be renovating, or be adding equipment such as a home charger. Share any existing paperwork and explain changes made to the property. The appearance of the fuse board alone cannot establish the condition of all the wiring.

Electrical Safety First's guidance on consumer unit replacement discusses assessing the existing installation before replacement. Ask John what inspection and testing is appropriate in your case, and whether anything needs attention before the planned upgrade.

Think about future electrical work

If a kitchen refurbishment, garden room or other addition is already planned, mention it at the start. It is easier to discuss the overall requirements while the scope is being developed than after a quote has been agreed. A list of future ideas is useful, but keep confirmed work separate from possibilities.

Bring appliance information or drawings where you have them. John can explain which details matter for the electrical design. Avoid choosing equipment solely because it resembles something in another home; the installation needs to suit your property.

Ask what is included in the quote

A clear scope should explain the proposed equipment, labour, testing and relevant documentation. Ask how any problems discovered during the work will be handled, and whether repairs to finishes are included or need arranging separately. If you are comparing quotes, compare those details as well as the final number.

There is no useful single price for every consumer unit replacement. Access, the existing installation and the work needed all affect the job. John will discuss the proposed work and cost before it goes ahead.

Prepare for the day

Discuss how long power may be unavailable and how this affects anyone working from home or relying on electrical equipment. Agree access to the board and relevant rooms, parking arrangements and who can make decisions if an unexpected issue arises. Keep the installation accessible without removing any covers yourself.

At handover, ask for an explanation of the new equipment and the documents associated with the work. Keep these alongside previous reports. For consumer unit replacement in Southend, Westcliff-on-Sea or the surrounding Essex towns, send John the address, any report and a brief description of your plans.

Further reading: Electrical Safety First: replacing a consumer unit

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