Consumer Unit Replacement Cost UK

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Consumer Unit Replacement Cost UK (2026 Guide)

Replacing a consumer unit (fuse box) is one of the most common electrical upgrades in UK homes. But how much does it actually cost?

This guide breaks down typical prices, what affects the cost, and what to expect when hiring an electrician.

Average Cost of Consumer Unit Replacement

In the UK, the typical cost is:

  • £500 – £900 → Small property (6–8 circuits)
  • £650 – £1000 → Average home (8–12 circuits)
  • £900 – £1,400+ → Larger homes or complex installs

These prices usually include:

  • New consumer unit
  • Labour
  • Testing and certification (EIC)

Need a consumer unit replacement quote?

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What Affects the Price?

1. Number of Circuits

More circuits = more time and materials

2. Type of Consumer Unit

RCD units

  • Cheaper
  • Shared protection

RCBO units

  • More expensive
  • Better safety and reliability

3. Installation Complexity

Costs increase if:

  • Wiring needs upgrading
  • Earthing/bonding needs improvement
  • The unit needs relocating

4. Location

Labour costs vary across the UK, with London and the South typically higher.

What’s Included in the Price?

A proper installation should include:

  • Removal of old fuse box
  • Installation of new consumer unit
  • Full testing of circuits
  • Electrical Installation Certificate (EIC)

This certification is essential for compliance and safety.

How Long Does It Take?

Most consumer unit replacements take:

  • 4–6 hours for a straightforward job
  • Up to a full day for larger properties

Should You Upgrade to RCBO?

Many electricians now recommend RCBO consumer units because:

  • Faults only affect one circuit
  • Reduced nuisance tripping
  • Better safety overall

Although more expensive, they can be worth the investment.

Get Quotes Before You Decide

Prices can vary significantly between electricians, so it’s worth getting multiple quotes.

Compare local electricians
Ask what type of unit is included
Check certification is provided

Final Thoughts

A new consumer unit is a worthwhile investment in safety and compliance. While costs vary, most UK homeowners can expect to pay between £500 and £900 for a standard replacement.

Always use a qualified electrician and ensure all work is properly tested and certified.

This guide is for general information only and does not replace professional advice.

Need a consumer unit replacement quote?

Compare quotes from qualified electricians →

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