Fusebox Repairs London – Certified, Affordable & Same Day

Frequent tripping, burning smells, buzzing or humming sounds, scorch marks, sockets that have gone dead, flickering lights, or a board that feels warm to the touch all indicate a fault that needs to be diagnosed. None of these should be ignored or left to see if they sort themselves out.

The tripping is the safety system doing its job, but the underlying fault causing it is the real danger. Damaged cables, failing appliances, or a degraded RCD left unaddressed can lead to electrical fire or shock. Get it diagnosed promptly rather than simply resetting and hoping.

No. The incoming mains supply to your consumer unit remains live at all times, even with the main switch off. Working inside a fusebox without correct training, isolation equipment, and certified components is illegal under Part P of the Building Regulations and genuinely dangerous. This is not a DIY job.

An RCD (Residual Current Device) protects a group of circuits against earth leakage faults. An RCBO (Residual Current Breaker with Overcurrent) provides the same earth leakage protection combined with overload and short circuit protection for a single circuit. RCBOs give more precise fault isolation and are standard on fully-protected modern consumer units.

Washing machines, dishwashers, and other appliances with motor drives or electronic controls can produce pulsating DC leakage current. This type of leakage requires a Type A RCD to detect correctly. If your board has an older Type AC RCD, the appliance may be triggering it inappropriately. We test the appliance and the RCD to identify the actual cause.

A single MCB or RCD repair typically takes under an hour from arrival to certification. A more complex fault requiring insulation resistance testing across multiple circuits may take two to three hours. A full consumer unit replacement with testing and certification generally takes three to five hours, depending on property size and circuit count.

We stock a wide range of MCBs, RCDs, and RCBOs on the van, covering the most common brands and ratings found in London properties. The vast majority of consumer unit repairs in London are completed on the same visit without needing to order parts. For less common components, we’ll advise you on the fastest sourcing option.

A Minor Works Certificate is issued for like-for-like component replacements, such as a single MCB, RCD, or RCBO. A full Electrical Installation Certificate (EIC) is required for any full consumer unit or fusebox replacement. Both are legally valid under BS 7671 and accepted by insurers, solicitors, and mortgage lenders.

Yes. Insurers could use an uninvestigated or unrepaired consumer unit fault to challenge a claim following an electrical fire or incident. Using a NICEIC-approved electrician and keeping your electrical certificates on file demonstrates that the installation was maintained correctly. It’s worth checking your policy wording.

Yes. Landlords in England must maintain a valid EICR under the Electrical Safety Standards (Private Rented Sector) Regulations 2020. HMO fusebox faults are particularly serious because one faulty board can affect every tenant in the building. We repair consumer units in rental properties and HMOs, issue correct certification, and can carry out or renew an EICR at the same visit if needed.