Electrician service

Fault Finding & Diagnostics

We find the actual fault - not the easiest thing to replace.

Fully insured 18th Edition qualified Certified work
Fault Finding & Diagnostics by Leon Electricians in London
Serving all London boroughs
Overview

About this service

Intermittent electrical faults are the most frustrating problem in any property. Leon Electricians Ltd uses proper insulation resistance testing, loop impedance testing and circuit isolation to track down the real cause - whether it's a damaged cable buried in a wall, a failing appliance, or a moisture-damaged junction box.

What we do

RCD & MCB tripping

Identify which circuit, then which leg of the circuit, is causing the trip.

Intermittent power loss

Locate failing connections that only fail under load or temperature change.

Hot accessories & cables

Find loose terminations, overloaded circuits or undersized cabling.

Pre-purchase electrical checks

Test before you buy a property so you know exactly what you're inheriting.

When to call us

  • An electrician has already 'fixed' the same fault and it returned
  • Your trip switch goes off at random times, especially overnight
  • You smell warm plastic but can't find the source
  • Lights dim when an appliance turns on
Get in touch

Request Fault Finding & Diagnostics

Tell us about your job and we'll arrange a qualified Leon electrician. For urgent help, call our 24/7 line on +44 20 3038 6072.

For urgent help call +44 20 3038 6072 - 24/7 emergency line.

FAQs

Common questions

We charge a fixed first hour, then by the half hour. Most domestic faults are located within 1–2 hours. We'll always check in before continuing if more time is needed.
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