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Can I replace a fuse board myself – Advice from Electriman, North London Electricians

Published 4 July 2026

Can I Replace My Fuse Board Myself?

The short answer is no, not legally — and here is why that matters for your home and your insurance.

What the Law Says

In England and Wales, consumer unit replacement falls under Part P of the Building Regulations (2005, amended 2013). This classifies it as notifiable electrical work, meaning it must either be carried out by a competent registered electrician (such as one registered with NICEIC, NAPIT, or ELECSA) or notified to your local authority building control before work begins.

Scotland operates under the Building (Scotland) Regulations and has similar requirements for notifiable work.

Why You Should Not DIY This

Live main supply: The tails from the meter to the consumer unit remain live even when you switch off the main switch — only the Distribution Network Operator (DNO) can disconnect the meter

Risk of fire: Incorrect wiring of an MCB or RCD can cause arcing, overheating, and house fires

Insurance risk: Your home insurance may be invalidated if an unregistered person carries out notifiable work

Resale problems: When you sell your home, solicitors will request an Electrical Installation Certificate (EIC) — without one, your sale can be delayed or fall through

No Part P certificate: Without certification, the work is technically illegal and you may face enforcement action

What You Can Check Safel

Need a qualified electrician in North London?

Electriman covers Mill Hill, Barnet, Finchley, Edgware, Enfield, Watford and surrounding areas. All work is Part P certified and fully insured.

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Want to go deeper? Read the full technical breakdown on ElectriQs →

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