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.

Get my instant quote

Electricians who do consumer unit replacements

RS Electrical UK

Southfields, London

Electrician, NICEIC5.027 reviews

VATO Electrical

West Hill, London

Electrician, NAPIT5.049 reviews

TEK Electrical Ltd

Chiswick Homefields, London

Electrician, NAPIT5.011 reviews

Qelectric Ltd

Furzedown, London

Electrician, NICEIC5.034 reviews

AVA ELECTRICAL CONTRACTORS LTD

Richmond upon Thames, London

Electrician, NICEIC5.074 reviews

AH Electrical

East Acton, Acton

Electrician, NAPIT5.07 reviews

EDL ELECTRICAL

Chiswick Gunnersbury, London

Electrician, NICEIC5.0139 reviews

Kinetic Projects Ltd

Chiswick Gunnersbury, Chiswick

Electrician, NICEIC4.9116 reviews

System Electrics (Contracts) Ltd

Richmond upon Thames, London

Electrician, NICEIC5.01 review

AC Electrical Services 09 Ltd

Lambeth, London

Electrician, NICEIC4.973 reviews

London Electrician Services

North Acton, London

Electrician, NICEIC5.0147 reviews

A.M.P ELECTRICAL

Gipsy Hill, London

Electrician, NICEIC5.025 reviews

X Electricians Ltd

Dollis Hill, LONDON

Electrician, NAPIT5.030 reviews

Richard Uri Electrical Services Ltd.

Sydenham, London

Electrician, NICEIC5.055 reviews

Wilba Electrical Services Ltd

Rushey Green, Catford

Electrician, NAPIT4.413 reviews

Fahri Electricians London Ltd

Blackheath, London

Electrician, NAPIT5.083 reviews

TPhase Ltd

Blackheath, Lewisham

Electrician, NICEIC

JD Electrical (London) Limited

Forest Gate North, London

Electrician, NAPIT

M.E.L Electrical Ltd

Chapel End, Walthamstow

Electrician, NAPIT5.061 reviews

Frank Edmund Electrical Services

Chapel End, London

Electrician, NICEIC5.072 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 plastic or hot electrics. Treat it as an electrical fire risk: turn off the main switch if safe, evacuate if there is smoke, and call an emergency electrician.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. Rewirable fuses, no RCD test button, or a wooden back board are clear upgrade signals.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.