When it comes to electrical safety, your fuse box — now called a consumer unit — is absolutely vital. It is the heart of your home’s electrical system, distributing power to different circuits and protecting you from electrical hazards. As we move through 2025, replacing an outdated fuse box is one of the most important upgrades homeowners and landlords can make to ensure compliance, efficiency, and safety.
At Niceic Electricians, we specialise in fuse box replacements for domestic and commercial properties across London. Our team is fully NICEIC-certified and committed to delivering safe, professional installations that comply with the latest electrical standards.
Why Might You Need to Replace a Fuse Box?
Older fuse boxes often lack the safety mechanisms of modern units, such as Residual Current Devices (RCDs) and Miniature Circuit Breakers (MCBs). These components protect against electric shocks, overcurrents, and even potential fire risks. If your consumer unit still uses rewireable fuses, has no RCD protection, or shows signs of damage, it’s likely time for an upgrade.
In many cases, replacement becomes essential during:
Upgrading ensures your system meets the latest edition of the Wiring Regulations (BS 7671).
What’s Involved in a Fuse Box Replacement?
A typical replacement includes:
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Removing the old unit safely
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Installing a new, modern consumer unit with RCD/RCBO protection
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Upgrading earthing and bonding (if required)
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Full system inspection and testing
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Issuing an Electrical Installation Certificate (EIC) upon completion
At Niceic Electricians, we follow a meticulous process to ensure every element of your electrical system is safe, functional, and future-proof.
Factors That Influence the Scope of Work
The total work involved in replacing a fuse box can vary depending on:
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The size and layout of the property
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The condition of existing wiring
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Whether earthing and bonding need updating
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Access to the consumer unit location
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Any remedial repairs discovered during testing
We always conduct a thorough inspection beforehand to outline what’s required. Our clients are never left in the dark — just safe and fully informed.
Benefits of Upgrading Your Fuse Box
Replacing your fuse box isn’t just about compliance — it’s about peace of mind. Benefits include:
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Enhanced safety: Modern units significantly reduce the risk of shocks or fire
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Regulatory compliance: Especially important for landlords and renovated properties
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Improved system reliability: Prevents nuisance tripping and supports today’s electrical demands
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Boosts property value: A modern, compliant electrical system is attractive to buyers
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Essential for insurance claims: Some insurers may refuse claims if unsafe systems are present
Certified and Trusted Electrical Work
We take pride in offering fully NICEIC-accredited services with all work guaranteed and documented. Every installation includes full testing, certification, and post-installation support. Our electricians are polite, punctual, and experienced — and we’re always happy to answer your questions.
Whether you need a simple replacement or additional upgrades like rewiring or bonding improvements, Niceic Electricians delivers dependable service from start to finish.
What Happens After the Work is Done?
Once the new consumer unit is installed, we carry out:
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Full testing to confirm the system operates as intended
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Issuance of EIC, proving compliance with British Standards
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Notification to local authorities, if required, under Part P of the Building Regulations
We also take the time to explain how your new consumer unit works and provide clear labelling for every circuit.
Ongoing Safety with Niceic Electricians
We don’t just fit and forget. Our team offers follow-up advice and periodic inspection services to keep your property safe and up to date. For landlords, this means staying ahead of your EICR responsibilities. For homeowners, it’s peace of mind that your family is protected.
Contact the Experts
If you suspect your fuse box needs replacing or just want expert advice, we’re here to help. Our qualified electricians provide clear, honest guidance with no jargon or pressure. We’ll assess your current setup and offer tailored solutions to suit your needs.
Call us today on: 02034882928
Email: info@rcdelectrician.co.uk