Electrical fault finding
Tracing why a circuit trips, a light flickers or a socket is dead, charged by the hour because the time depends on what is found. Electrical fault finding is also known as fault finding, electrical diagnostics, tracing a fault and tripping electrics. All 498 businesses are electricians, with 305 in London, 19 in Bristol, 16 in Leeds, 10 in Birmingham and 10 in Southampton. Electrical fault finding cost guide
Why people have it done
- The cause is traced rather than guessed at, so the repair meets what is actually wrong.
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 electrical fault finding
WATT NOW
Kenley, Whyteleaf
Electrician, NICEIC5.08 reviews
Powertec
Sutton, Carshalton
Electrician, NICEIC
CMD Electrical Services Ltd
Coulsdon Town, Surrey
Electrician, NICEIC4.966 reviews
Prolec Contractors Limited
Coulsdon Town, Coulsdon
Electrician, NICEIC5.07 reviews
Smartsparks London Ltd
Warlingham West, Warlingham
Electrician, NICEIC
Josh Patrick Electrical Services Ltd
Sutton
Electrician, NICEIC5.02 reviews
BRG Electrical
Coulsdon Town, Coulsdon
Electrician, NAPIT5.09 reviews
Electrosmith Ltd
Belmont, Sutton
Electrician, NAPIT5.023 reviews
Wired by JP Ltd
Belmont, Sutton, London
Electrician, NICEIC5.025 reviews
Laidlaw Electrical Ltd
North Cheam, Sutton
Electrician, NICEIC4.832 reviews
Emtech Electrical Services
Warlingham West, Warlingham
Electrician, NICEIC
Blackwells Electrical Services
Cheam, Sutton
Electrician, NICEIC4.33 reviews
Steel Electrical
Nonsuch, Cheam
Electrician, NICEIC
Top Volt
Banstead Village, Banstead
Electrician, NAPIT5.019 reviews
T.J Neale Electrical
Worcester Park North, Worcester Park
Electrician, NAPIT5.011 reviews
2Fuse Ltd
Worcester Park South, Epsom
Electrician, NICEIC
AA Electrical Services
St Paul's Cray, Orpington
Electrician, NICEIC4.8150 reviews
Route Electrical Ltd
St Mary Cray, Orpington
Electrician, NAPIT4.8221 reviews
2C Electrical
Orpington, Bromley
Electrician, NICEIC
Alma Electrical Ltd
St Paul's Cray, Orpington
Electrician, NAPIT5.024 reviews
Worth knowing
- The work resolves problems including No Power In One Room, RCD Keeps Tripping, Lights Flickering In The Whole House, Fuse Box Buzzing Or Humming, Burning Plastic Smell From Electrics, Sparks When Plugging Something In, Electric Shock From Light Switch and Socket Not Working.
- Ratings run from 2.9 to 5.0, with a median rating of 5.0 across 383 rated businesses. The most-reviewed business has 725 reviews, and there are 12589 reviews in total.
- The register figures include 329 businesses registered as installers and 158 registered as inspectors. Scheme figures include 258 with NICEIC, 131 with NAPIT, 49 with Part P and 2 with REFCOM.
- London's leading borough counts are 24 in Enfield, 23 in Croydon, 21 in Barnet, 20 in Bromley and 13 in Havering.
- The businesses also offer consumer units, EICR, rewires, EV chargers, lighting, partial rewire, emergency callouts and socket installation, alongside 29 other services.
- There are 496 businesses with their own website. Companies House records show 143 active companies incorporated between 1991 and 2025, with a median year of 2018.
Common problems
No Power In One Room
One room in your home has completely lost power while the rest of the house works fine.
RCD Keeps Tripping? Common Causes & How to Fix It (2026)
Your RCD keeps tripping and cutting power to multiple circuits. This guide covers every common cause (from faulty appliances and moisture to wiring faults and nuisance tripping) plus exactly what to do about it.
Lights Flickering In The Whole House
Every light in your home is flickering or dimming at the same time: this affects the entire property.
Fuse Box Buzzing Or Humming
Your consumer unit or fuse box is making a buzzing or humming noise that was not there before.
Burning Plastic Smell From Electrics
A chemical, acrid, burning plastic smell is coming from your electrics.
Sparks When Plugging Something In
You see a brief spark or flash when you plug something into a socket.
Where we cover
Popular
- Electrical fault finding in London 305
- Electrical fault finding in Bristol 19
- Electrical fault finding in Leeds 16
- Electrical fault finding in Birmingham 10
- Electrical fault finding in Southampton 10
- Electrical fault finding in Sheffield 9
- Electrical fault finding in Liverpool 8
- Electrical fault finding in Basingstoke 7
London
- Electrical fault finding in Enfield 24
- Electrical fault finding in Croydon 23
- Electrical fault finding in Barnet 21
- Electrical fault finding in Bromley 20
- Electrical fault finding in Havering 13
- Electrical fault finding in Waltham Forest 13
- Electrical fault finding in Ealing 12
- Electrical fault finding in Lambeth 12
- Electrical fault finding in Bexley 11
- Electrical fault finding in Haringey 11
- Electrical fault finding in Redbridge 11
- Electrical fault finding in Sutton 11
- Electrical fault finding in Wandsworth 11
- Electrical fault finding in Brent 10
- Electrical fault finding in Hounslow 10
- Electrical fault finding in Lewisham 10
- Electrical fault finding in Camden 9
- Electrical fault finding in Richmond upon Thames 9
- Electrical fault finding in Merton 7
- Electrical fault finding in Hillingdon 6
- Electrical fault finding in Islington 6
- Electrical fault finding in Kingston upon Thames 6
- Electrical fault finding in Barking and Dagenham 5
- Electrical fault finding in Hackney 5
- Electrical fault finding in Hammersmith and Fulham 5
- Electrical fault finding in Tower Hamlets 5
- Electrical fault finding in Newham 4
- Electrical fault finding in Southwark 4
- Electrical fault finding in Westminster 4
- Electrical fault finding in Harrow 3
- All of London 305