Electrical Fault Finding London
Some electrical faults are obvious. Many aren’t, an intermittent trip that happens once a week and not on any pattern you can spot, a socket that works fine most of the time, a light that flickers only when another appliance switches on. These are the jobs where proper, methodical fault finding matters more than experience alone, and First Strike Electrical Ltd has been tracing electrical faults across London properties since 1999, as an NICEIC approved contractor working to current wiring regulations.
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07931 388 466Available 24 hours a day, 7 days a week.
- NICEIC Approved
- Trading Since 1999
- Proper Test Equipment
How We Approach Fault Finding
We start with what you can tell us: when it happens, what else is on at the time, whether it’s linked to a specific room, appliance, or time of day. From there, we use proper test equipment, insulation resistance testing, continuity testing, and a systematic process of isolating sections of the installation, rather than swapping parts and hoping one of them was the problem. This matters because a fault that seems to disappear after a quick fix sometimes comes straight back once conditions that triggered it recur, particularly with intermittent faults linked to temperature, vibration, or specific load combinations.
Common Fault Finding Jobs
- Consumer units that trip without an obvious cause
- Sockets or circuits that have stopped working with no visible reason
- Intermittent faults that come and go unpredictably
- Flickering lights not explained by a simple bulb issue
- Faults that appeared after building work, DIY, or an appliance failure elsewhere on the same circuit
Why This Sometimes Takes Longer Than You’d Expect
An obvious fault, a scorched socket, exposed wiring, can be diagnosed quickly. An intermittent fault that only shows up occasionally can genuinely take longer to trace, since it sometimes needs monitoring over time or recreating specific conditions to catch it in the act. We’ll always give you an honest estimate of what’s involved before starting, and update you if what looked like a quick job turns out to need more investigation.
When Fault Finding Points to a Bigger Job
Occasionally, what starts as a fault-finding call reveals an issue that’s really about the age or condition of the wider installation rather than one isolated fault, an old consumer unit, degraded cable in several places, or evidence the property is overdue an EICR. When that’s the case, we’ll say so plainly rather than repeatedly repairing individual symptoms of a bigger underlying issue.
Why Choose First Strike Electrical
NICEIC approved, so our diagnostic methods are grounded in properly assessed technical competence, not guesswork. Trading in London since 1999, we’ve traced faults in properties with wiring from every era, which genuinely helps when narrowing down likely causes based on a property’s age and history. We explain what we find in plain terms, not a list of readings that mean nothing without context.
Frequently Asked Questions
My consumer unit trips occasionally with no obvious pattern, can you find out why?
Yes, this is exactly the kind of fault proper diagnostic testing is designed to trace, even where the cause isn’t obvious from a visual inspection alone.
How long does fault finding usually take?
It depends entirely on the fault. Straightforward, visible faults can be diagnosed quickly. Intermittent faults can take longer, and we’ll be upfront about that rather than promising a quick fix we can’t guarantee.
Will you definitely find the cause?
In the substantial majority of cases, yes. Very occasionally a fault is genuinely intermittent enough that it needs monitoring over a longer period to catch reliably, and we’ll tell you if that’s the situation.
Is fault finding itself notifiable work under Part P?
No, diagnosis isn’t notifiable. If the fault finding leads to a repair involving new circuit work, that element may be, and we’ll advise you at that point.
What if the fault turns out to be a symptom of a bigger underlying issue?
We’ll tell you plainly if that’s what we find, rather than repeatedly treating individual symptoms of a wider problem such as an ageing installation overdue an EICR.
Related Electrical Services
We work across central, west, north west and south west London — see every area we cover.
Get Help Diagnosing an Electrical Fault
Describe what you’re experiencing when you call, and we’ll advise whether it needs an urgent visit or a scheduled diagnostic appointment.
NICEIC approved, trading since 1999.
First Strike Electrical Ltd