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.
What needs fixing?
Tell us what's wrong. We'll tell you the price, then find a local electrician to do the job.
Electricians who do consumer unit replacements
Purcell Electrical Ltd
Shirley South, Croydon
Electrician, NICEIC5.01 review
Heritage Electrical London Ltd
South Croydon, Croydon
Electrician, NICEIC5.025 reviews
Millers Electrical & Building Services Ltd
West Wickham, West Wickham, Kent
Electrician, NICEIC
Checked Electric Ltd
South Croydon, Croydon
Electrician, NICEIC5.042 reviews
PA Henery Ltd
South Croydon, Croydon
Electrician, NAPIT4.977 reviews
SGK Electrical
Bromley
Electrician, NAPIT5.0102 reviews
All Services 360 Electrical Ltd
South Croydon, Croydon
Electrician, NICEIC5.024 reviews
Mek Electrical Services Ltd
South Croydon, SOUTH CROYDON
Electrician, NAPIT4.9122 reviews
48Four Contract Services Ltd
Waddon, Croydon
Electrician, NICEIC4.58 reviews
Ohm & Safe Electrical Ltd
Croydon
Electrician, NAPIT5.081 reviews
Adams Electrical London
Bromley
Electrician, NICEIC5.014 reviews
Patron Electrical Ltd
Croydon, London
Electrician, NAPIT5.012 reviews
Hugill and Brown Electrical Services Ltd
Sanderstead, Croydon
Electrician, NICEIC5.01 review
Electric Link
Sanderstead, South Croydon
Electrician, NICEIC5.03 reviews
Efficient Home Energy Limited
Bromley Town, Bromley
Electrician, NICEIC4.8790 reviews
Wandle Electrical Services
Wallington North, Wallington
Electrician, NAPIT4.9194 reviews
Equilux Ltd
Cricket Green, Mitcham
Electrician, NICEIC
MCG Electrical
Bromley
Electrician, NAPIT
KPH Electrical Limited
Bromley
Electrician, NICEIC
Brightspace Electrical Ltd
Bromley
Electrician, NICEIC5.01 review
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 Box
Your 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 Sparking
Your 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 Upgrading
Your fuse box is showing signs that it is outdated and no longer providing adequate protection.
House Not Up To Electrical Regulations
Your home's electrics do not meet current electrical regulations and standards.
Where we cover
Popular
- Consumer unit replacement in London 279
- Consumer unit replacement in Birmingham 22
- Consumer unit replacement in Bristol 19
- Consumer unit replacement in Sheffield 15
- Consumer unit replacement in Eastleigh 14
- Consumer unit replacement in Leeds 13
- Consumer unit replacement in Southampton 12
- Consumer unit replacement in Manchester 11
London
- Consumer unit replacement in Bromley 26
- Consumer unit replacement in Croydon 22
- Consumer unit replacement in Enfield 18
- Consumer unit replacement in Barnet 14
- Consumer unit replacement in Brent 13
- Consumer unit replacement in Ealing 13
- Consumer unit replacement in Sutton 13
- Consumer unit replacement in Wandsworth 13
- Consumer unit replacement in Havering 12
- Consumer unit replacement in Lewisham 12
- Consumer unit replacement in Waltham Forest 12
- Consumer unit replacement in Bexley 9
- Consumer unit replacement in Haringey 9
- Consumer unit replacement in Hounslow 9
- Consumer unit replacement in Kingston upon Thames 9
- Consumer unit replacement in Islington 7
- Consumer unit replacement in Lambeth 7
- Consumer unit replacement in Redbridge 7
- Consumer unit replacement in Richmond upon Thames 7
- Consumer unit replacement in Merton 6
- Consumer unit replacement in Newham 5
- Consumer unit replacement in Camden 4
- Consumer unit replacement in Greenwich 4
- Consumer unit replacement in Hackney 4
- Consumer unit replacement in Hammersmith and Fulham 4
- Consumer unit replacement in Hillingdon 4
- Consumer unit replacement in Kensington and Chelsea 4
- Consumer unit replacement in Southwark 3
- Consumer unit replacement in Tower Hamlets 3
- Consumer unit replacement in Westminster 3
- All of London 279