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
GMS Electrical Ltd
Bromley, Beckenham
Electrician, NICEIC
Collins Electrical
Bromley, Beckenham
Electrician, NICEIC4.911 reviews
BSS Electrical Ltd
Shirley South, Croydon
Electrician, NICEIC5.07 reviews
Millers Electrical & Building Services Ltd
West Wickham, West Wickham, Kent
Electrician, NICEIC
Eulead Ltd
South Croydon, Croydon
Electrician, NAPIT5.01 review
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
Highwood Electrical Ltd
Bromley, West Wickham
Electrician, NICEIC5.04 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
Electric Link
Sanderstead, South Croydon
Electrician, NICEIC5.03 reviews
Wandle Electrical Services
Wallington North, Wallington
Electrician, NAPIT4.9194 reviews
BHI-Electrical
Carshalton Central, Carshalton
Electrician, NAPIT
KPH Electrical Limited
Bromley
Electrician, NICEIC
Down To Earth Electrical & Building Contractors Ltd
Sutton North, Sutton
Electrician, NICEIC4.01 review
Hills Are Live Limited
Coulsdon Town, Coulsdon
Electrician, NICEIC
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