Consumer Unit Upgrades in Manchester: Why Your Old Fuse Board Could Be Failing Your EICR

If your rental property has an old fuse board, it could be the reason your EICR keeps failing. Consumer units — the modern term for fuse boards — are one of the most common causes of unsatisfactory electrical inspection reports across Manchester.

In this guide, we explain why old consumer units fail EICRs, when you need to upgrade, what it costs in Manchester, and how Manchester Compliance Ltd can help you get compliant quickly.

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Why Do Old Consumer Units Fail EICRs?

An EICR assesses whether your electrical installation is safe for continued use. Consumer units are often flagged for the following reasons:

• Lack of RCD protection — Older boards often have no RCD (Residual Current Device) protection, which is now required on virtually all circuits
• Physical deterioration — Scorch marks, loose connections, overheating, or visible damage
• Outdated components — Rewireable fuses instead of modern MCBs (Miniature Circuit Breakers)
• No earth leakage protection — Old fuse boxes cannot protect against electric shock
• Overloaded circuits — Boards not designed for modern electrical demands

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The Fire Safety Regulations: Why Metal Consumer Units Are Now Required

Since January 2016, all new consumer unit installations in domestic properties must be housed in a non-combustible (metal) enclosure. This regulation was introduced after London Fire Brigade recorded a sharp increase in consumer unit fires:

• 253 fires involving consumer units in London in 2013/14
• Up from just 71 fires in 2011/12
• Approximately 5 house fires per week in London caused by fuse boards
• Testing showed plastic units could ignite in as little as 11-16 seconds

The primary cause? Loose connections creating resistance heating, often from poor installation work decades earlier. Metal enclosures are far better at containing any fire that starts within the unit.

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Signs Your Consumer Unit Needs Replacing

Watch out for these warning signs that indicate your fuse board may need upgrading:

Physical Warning Signs

• Scorch marks or burn marks on or around the unit
• Burning smells or unusual odours
• Visible damage: cracks, dents, missing covers, melting
• Buzzing, crackling, hissing or popping sounds

Operational Warning Signs

• Frequent tripping or regular power cuts
• New appliances constantly tripping the board
• Sockets that don’t work or are unreliable
• Board overloaded with no room for additional circuits

Age and Technology Indicators

• Uses rewireable fuses instead of MCBs
• No RCD or RCBO protection
• Over 20-25 years old
• Wooden backboard, cast iron, or ceramic switches (pre-1960s)
• Hasn’t been inspected in over 10 years

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Types of Modern Consumer Units

When upgrading, you’ll typically choose from these options:

RCBO Board (Full Protection)

Individual RCBO on every circuit. Best protection — each circuit is independently protected. A fault on one circuit won’t affect others. More expensive but prices have dropped significantly. Recommended for rental properties.

Dual RCD (Split Load) Board

Circuits split into two banks, each controlled by a separate RCD. Lower cost option. Disadvantage: a fault on one circuit trips everything on that RCD bank.

High Integrity Board

Combination of dual RCD and RCBO circuits. Good balance of cost and protection. Popular for properties with 12+ circuits.

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Consumer Unit Upgrade Costs in Manchester

Here’s what you can expect to pay for a consumer unit upgrade in Manchester and the North West:

• Studio/1-bed flat (4-6 circuits): £350 — £550
• 2-3 bed home (8-10 circuits): £485 — £800
• 4+ bed/large home (12-14 circuits): £800 — £1,200+

Manchester pricing is generally 20-30% lower than London and the South East. A straightforward swap typically costs between £450 — £850 including the metal board, installation, testing, and certification.

What’s Included?

• New metal consumer unit with MCBs or RCBOs
• Full installation by qualified electrician
• Testing and inspection
• Electrical Installation Certificate
• Part P Building Regulations compliance certificate

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How Long Does a Consumer Unit Replacement Take?

• Simple swap (small flat): 2-3 hours
• Standard installation: 4-6 hours
• Large property/complex installation: 6-8 hours or full day

Most domestic consumer unit upgrades are completed in a single visit with minimal disruption. Power will be off during the changeover, typically for 2-4 hours.

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Do Landlords Have to Upgrade Consumer Units?

Here’s the key point many landlords misunderstand:

You only need to upgrade when:

• Your EICR identifies C1 (danger present) codes
• Your EICR identifies C2 (potentially dangerous) codes
• Further Investigation (FI) is required and reveals issues

If your existing consumer unit passes the EICR with only C3 (improvement recommended) observations, you are not legally required to upgrade — though it may be advisable for safety and to avoid issues at the next inspection.

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Part P Building Regulations

Consumer unit replacement is notifiable work under Part P Building Regulations in England and Wales. This means:

• Work must be carried out by a Part P registered electrician
• You’ll receive an Electrical Installation Certificate
• You’ll receive a Building Regulations Compliance Certificate
• Non-compliance can result in fines up to £5,000 and requirement to remove or redo the work

Always use a registered electrician from an approved scheme such as NICEIC, NAPIT, or ELECSA.

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Consumer Unit Upgrades from Manchester Compliance Ltd

At Manchester Compliance Ltd, we carry out consumer unit upgrades across Greater Manchester for landlords, homeowners, and commercial property owners. As NICEIC Approved Contractors, all our work is fully certified and compliant.

We serve Manchester, Salford, Stockport, Trafford, Bolton, Bury, Oldham, Rochdale, Tameside, Wigan, and surrounding areas.

Published February 2026 by Manchester Compliance Ltd — NICEIC Approved Contractor serving Greater Manchester, Cheshire, and the North West.