Consumer unit replacement

Replacing the consumer unit, still widely called the fuse box, with a board carrying RCD or RCBO protection for each circuit. Electricians carry out Consumer unit replacement nationally, with 522 businesses offering the work. The businesses are concentrated in London, with 279, followed by Birmingham with 22, Bristol with 19, Sheffield with 15 and Eastleigh with 14. Ratings run from 2.8 to 5.0, while the median rating is 5.0 across 415 rated businesses. Published prices have national medians of £180 to £700 for 2 variants across 12 UK towns, researched August 2026. Consumer unit replacement cost guide

Why people have it done

A modern board carries the additions an older fuse box had no way to take.

522

Electricians listed

443

Claimed profiles

Areas covered

£350–£800

Typical UK price

What needs fixing?

Tell us what's wrong. We'll tell you the price, then find a local electrician to do the job.

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Electricians who do consumer unit replacements

Eastway Electrical Contractors Ltd

Lea Bridge, London

Electrician, NICEIC5.032 reviews

Aaron Cripps

Telegraph Hill, London

Electrician, NICEIC

MT Sites Ltd

Notting Dale, London

Electrician, NICEIC5.021 reviews

CENTRAL ELECTRICIANS LTD

Brondesbury Park, London

Electrician, NICEIC5.03 reviews

Ardent Security Ltd

Queens Park, London

Electrician, NICEIC

JP Electrical Wiring LTD

Lavender, London

Electrician, NICEIC5.068 reviews

Volt Electrical Solutions Ltd

Stratford Olympic Park, Stratford

Electrician, NICEIC5.0181 reviews

Thomerson Electrical

Falconbrook, London

Electrician, NAPIT5.014 reviews

Everything Electrical Ltd

East Finchley, London

Electrician, NICEIC4.6100 reviews

F & A Electrical

Woodside, London

Electrician, NICEIC4.926 reviews

JNH Electrical Services

Falconbrook, London

Electrician, NICEIC5.010 reviews

Tesla Electrics Ltd

Lea Bridge, London

Electrician, NICEIC4.621 reviews

Norm Electrical Engineering

Tottenham Hale, London

Electrician, NAPIT5.075 reviews

East Finchley Electrical Contractors Ltd

East Finchley, London

Electrician, NICEIC4.243 reviews

JF Electrical / Mechanical Services Ltd

Noel Park, Wood Green London

Electrician, NICEIC5.023 reviews

TNS Electrical Solutions Ltd

Hammersmith and Fulham, London

Electrician, NICEIC4.9434 reviews

Smart Electrical Solutions

Munster, London

Electrician, NICEIC4.311 reviews

SparkPro Electrical Ltd

Grove, Hammersmith

Electrician, NAPIT5.092 reviews

Keenan Electrical Services

Brent, London

Electrician, NAPIT5.09 reviews

Ze-Electrics Service Ltd

Clapham Park, London

Electrician, NICEIC5.083 reviews

Worth knowing

The work is also called fuse box replacement, fuse board replacement, consumer unit upgrade and fuse box upgrade.
Businesses also offer rewires, EICR, fault finding, EV chargers, lighting, partial rewire, socket installation, emergency callouts and 29 other services, with the supplied counts for each service.
The five supplied local price ranges are £85 to £720 in Birmingham, £145 to £560 in Croydon, £155 to £800 in Bristol, £150 to £800 in Ealing and £85 to £1,050 in Leeds.
The work resolves problems including Burning Smell From The Fuse Box, Fuse Box Sparking, Old Fuse Box, Failed EICR, Signs Your Fuse Box Needs Upgrading, House Not Up To Electrical Regulations and Fuse Box In The Bathroom.
The businesses have 14427 reviews in total, and the most-reviewed business has 725 reviews.
There are 257 businesses with NICEIC, 131 with NAPIT, 52 with Part P and 2 with REFCOM.

Common problems

Burning Smell From The Fuse BoxYour consumer unit or fuse box smells of burning: this needs immediate action.Fuse Box SparkingYour fuse box (consumer unit) is sparking: flashes, arcing, or crackling from the board in the hall cupboard or under the stairs. In UK homes that is an extreme electrical emergency: the unit carries the full mains load, and arcing inside it can start a fire. Do not open the cover or touch sparking parts. If the main switch is safely reachable and the unit is not on fire, turn it off. If there is smoke, flames, or any doubt, evacuate and call 999. Then book an emergency electrician. The Distribution Network Operator (DNO) may need to pull the main fuse before work can start.Old Fuse Box: Do I Need To Upgrade?Your fuse box is old and you are wondering whether it needs replacing with a modern consumer unit.Failed EICR: What Happens Next?Your Electrical Installation Condition Report has come back with unsatisfactory results.Signs Your Fuse Box Needs UpgradingYour fuse box is showing signs that it is outdated and no longer providing adequate protection.House Not Up To Electrical RegulationsYour home's electrics do not meet current electrical regulations and standards.

Questions people ask

Which businesses carry out Consumer unit replacement?

All 522 businesses are electricians. Of these, 309 are registered as installers and 153 are registered as inspectors.

Where are these businesses concentrated?

London has 279 businesses, while the supplied London borough counts are 26 in Bromley, 22 in Croydon, 18 in Enfield, 14 in Barnet and 13 in Brent.

How long have the businesses been trading?

There are 139 active companies at Companies House, incorporated between 1984 and 2025, with a median year of 2018. The businesses have a median rating of 5.0 across 415 rated businesses.

What online presence do these businesses have?

520 of 522 businesses have their own website, and 3 of 522 manage their own Tradehand profile.