Old rewireable fuse boards — the type where you have to replace fuse wire when a circuit blows — offer poor protection by modern standards. They lack RCD protection, which means they won't trip quickly enough to prevent a fatal electric shock. Replacing them with a modern 18th Edition consumer unit fitted with RCBO protection gives each circuit individual protection, so a fault on one circuit doesn't knock out the rest of the house.

Most Harrow consumer unit replacements are completed within half a day. I'll switch off the electricity at the meter, swap out the old board, test every circuit, and restore power before I leave. You'll get a full electrical certificate (EIC) through NAPIT, which handles building control notification — so there's nothing you need to file with the council yourself.

Landlords with properties in Harrow often use a consumer unit replacement to resolve C2 defects identified on an EICR — I can carry out both on the same visit if you're booking ahead. For properties that also need an EV charger circuit, we can add that to the same job and save on a separate installation visit.

What's Included

Old rewirable fuse boards replaced with modern units
Full RCD and RCBO protection as standard
Surge protection available — protects your appliances
More circuits if you need them
Part P notification included — fully above board
Usually completed within half a day

Questions About Consumer Unit Upgrades in Harrow

Consumer unit replacement in Harrow starts from £500 for a standard domestic installation. The exact price depends on the number of circuits. I'll give you a fixed price during a free telephone or site survey.
Yes — this is a notifiable electrical installation under Part P of the Building Regulations. As a NAPIT registered electrician, I handle the notification and issue you with a full Electrical Installation Certificate (EIC) automatically. You don't need to contact the council.
Most domestic installations in Harrow take half a day — typically 3–5 hours. The electricity will be off for most of that time. I'll always work as quickly and tidily as possible.
Yes — if you're booking a consumer unit replacement, I can carry out the EICR inspection at the same time. The inspection is effectively part of the commissioning process, so it saves both time and cost.
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