Fault Diagnosis
Electrical Fault Diagnosis
When an electrical problem keeps happening and no one can find the cause, professional diagnosis gets to the bottom of it. Tell us what's going on and where you're based and we'll help you find it.
Urgent electrical help — tell us what's happening and where you are.
Free, No Obligation
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One simple enquiry for a wide range of electrical work.
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The Service
What Is Electrical Fault Diagnosis?
Electrical fault diagnosis is the systematic process of finding the cause of an electrical problem — a recurring trip, a dead circuit, an intermittent fault — using testing, measurement and inspection rather than guesswork.
It often follows on from basic fault finding: where the symptom is obvious but the cause isn't, diagnosis uses insulation resistance testing, continuity testing and methodical isolation to pinpoint exactly where the fault lies, often hidden in the wiring.
Common Reasons
Common Problems & Reasons People Get in Touch
Not sure if this is the service you need? Here are some of the reasons people contact an electrician about this.
Intermittent fault
A circuit works sometimes and fails others, with no clear pattern.
Tell us about itHidden wiring fault
A fault is suspected in wiring that's concealed in walls or floors.
Tell us about itWhat's Included
What's Typically Involved
- A systematic assessment of the symptoms and history
- Insulation resistance and continuity testing of circuits
- Methodical isolation to pinpoint the fault location
- A clear explanation of the cause and the fix
- A quote for any remedial work needed
Why It Matters
Why Professional Electrical Work Matters
An undiagnosed fault can't be safely fixed. Repeatedly resetting a tripping RCD without finding the cause is dangerous — the protection is telling you something is wrong.
Methodical diagnosis avoids the costly, disruptive alternative of guessing and chasing walls. Finding the exact fault first means any repair is targeted and minimal.
Costs & Pricing
Costs & What Affects Pricing
Pricing for electrical work depends on the job. Here are the factors that typically affect the cost of this service.
- The complexity of the fault
- The time needed to isolate the cause
- The number of circuits involved
- Access to the wiring (concealed vs accessible)
- Whether any remedial work is needed after diagnosis
Diagnosis is the investigation; the repair is quoted once the cause is found. Tell us what's happening and we can help.
How It Works
Getting Electrical Help Is Simple
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Describe the electrical issue or project you have in mind.
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We'll help with your enquiry
We'll review the details and work to connect you with a suitable electrician serving your area.
FAQs
Frequently Asked Questions
Related Services
Related Electrical Services
Electrical Fault Finding
Diagnosing recurring faults, tripping circuits and unusual electrical behaviour.
View ServiceElectrical Repairs
Repairs for faulty sockets, switches, lighting and general electrical issues.
View ServiceRCD & Circuit Breaker Faults
Diagnosis and resetting of RCDs and circuit breakers that won't stay on.
View ServiceElectrical Wiring Repairs
Repairs to damaged, ageing or faulty wiring across your property.
View ServiceGot a Fault No One Can Find? Let's Track It Down.
Tell us what's happening and where you're based. We'll help you find the right fault diagnosis service.