Electrical Fault Finding in Cardiff — Expert Diagnosis & Fast Repairs
Trusted emergency electrical services across Cardiff.
Is your fuse board tripping repeatedly? Noticed flickering lights, a burning smell, or sockets that have stopped working? These are warning signs you should never ignore — electrical faults can escalate quickly and put your property and family at risk.
Gabe Electrical specialises in electrical fault finding in Cardiff and the surrounding areas. As a NICEIC Approved Contractor with over 25 years of combined experience in the trade, our team uses specialist diagnostic tools so we can provide an expert diagnosis and fast repairs.
Need an electrician today? Call Gabe Electrical or request a callback — we serve Cardiff, Penarth, Dinas Powys and the wider South Wales area.
Electrical fault finding is the systematic process of diagnosing and identifying faults within a property’s electrical system. It covers everything from tripping RCDs and dead sockets to intermittent power loss and circuit overloads. Because a home’s wiring is largely hidden behind walls and under floors, fault finding requires both specialist knowledge and the right diagnostic equipment.
Our electricians carry out a structured investigation — testing circuits, checking wiring integrity, inspecting the consumer unit, and using tools such as continuity testers, insulation resistance testers, and thermal imaging where required. Once the fault is located, we’ll explain what we’ve found and agree on the best repair approach with you before any work begins.
Signs You May Have an Electrical Fault
Many electrical faults give warning signs before they become serious. If you’re experiencing any of the following, it’s time to call a qualified electrician:
Don’t wait — if you smell burning plastic or notice scorch marks, switch off the supply at the consumer unit and call us immediately.

Common Electrical Faults We Diagnose in Cardiff
Tripping RCDs and MCBs
Residual current devices (RCDs) and miniature circuit breakers (MCBs) are safety devices that cut power when a fault is detected. If yours keeps tripping, it usually indicates a wiring fault, a faulty appliance, or an overloaded circuit. Our electricians will isolate the cause and resolve it safely.
Dead Sockets or Lighting Circuits
If a socket or group of lights stops working, it could be down to a loose connection, a blown fuse, a damaged cable, or a fault at the consumer unit. We trace the circuit systematically to find exactly where the problem lies.

Intermittent Power Loss
Faults that come and go are often the trickiest to diagnose — but they’re also among the most dangerous, as they can indicate a loose connection that could arc and cause a fire. Our team has the experience and tools to track down even intermittent faults reliably.
Overloaded Circuits
Older properties in Cardiff — particularly Victorian terraces and Edwardian houses — often have wiring that wasn’t designed to handle modern electrical loads. Overloaded circuits can cause overheating and present a genuine fire risk. We can identify where circuits are under strain and advise on upgrades.
Damaged or Degraded Wiring
Wiring degrades over time, and in older Cardiff properties, you may still have ageing wiring systems that no longer meet current BS 7671 standards. We carry out thorough insulation resistance testing to identify degraded cables and advise on remedial work.
Our Fault Finding Process
When you contact Gabe Electrical about a fault, here’s what you can expect:
Why Choose Gabe Electrical for Fault Finding in Cardiff?
Electrical Fault Finding Across Cardiff & South Wales
Gabe Electrical provides fault finding and electrical repair services throughout Cardiff and its surrounding areas, including:
Not sure if we cover your area? Get in touch — if we can get to you, we will.

Frequently Asked Questions
How much does electrical fault finding cost in Cardiff?
Pricing depends on the complexity of the fault and time required on site. Our electricians charge a transparent hourly rate, and for straightforward faults we can often offer a ‘find and fix’ package. We always agree pricing with you before work begins — no surprises.
How quickly can you attend to an electrical fault?
We aim to respond promptly and, in most cases, can arrange a visit within a short number of days. For urgent safety concerns, please call us directly so we can assess the situation and advise on priority attendance.
Do I need to be at home during the visit?
Yes, a responsible adult should be present when we carry out diagnostic work. This allows us to discuss findings with you directly and get sign-off on any repair work before we proceed.
Will you provide documentation after the repair?
Yes. Where certification is required — for example, if a new circuit or significant repair is carried out — we provide the relevant NICEIC-backed documentation. All our work complies with BS 7671 (the IET Wiring Regulations).
Can you also carry out an Electrical Installation Condition Report (EICR)?
Absolutely. If your fault investigation reveals wider concerns about the condition of your wiring, or if you simply want a full health check on your property’s electrics, we can carry out a full EICR. This is also a legal requirement for landlords in Wales.
