Fault Finding & Diagnostics
We find the actual fault - not the easiest thing to replace.

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
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.
Common questions
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