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:

  • Circuit breaker or RCD tripping repeatedly
  • Flickering or dimming lights (especially when appliances are in use)
  • Burning smell from sockets, switches, or the consumer unit
  • Sockets or switches that feel warm or show scorch marks
  • Power cuts to part of the property with no obvious cause
  • Buzzing or crackling sounds from electrical outlets
  • Sparks when plugging in appliances
  • Electrical shocks from switches, sockets, or appliances

Don’t wait — if you smell burning plastic or notice scorch marks, switch off the supply at the consumer unit and call us immediately.

signs you may have an electrical fault

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.

electrical testing hero portrait

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:

  • Initial consultation — We discuss the symptoms over the phone to build a picture of the likely fault type and advise on any immediate safety steps.
  • On-site assessment — One of our qualified electricians visits your property and carries out a visual inspection of the consumer unit, sockets, switches, and accessible wiring.
  • Diagnostic testing — Using specialist tools, we carry out circuit testing, insulation resistance testing, and continuity checks to pinpoint the fault.
  • Clear findings — We explain what we’ve found in plain English before any repair work begins, so you’re never left in the dark.
  • Expert repair — Once agreed, we carry out the repair to a high standard, using quality materials throughout.
  • Verification — We test the repaired circuit and surrounding systems to confirm the fault has been fully resolved.
  • Documentation — Where required, we provide appropriate certification and documentation for your records.

Why Choose Gabe Electrical for Fault Finding in Cardiff?

  • NICEIC Approved Contractor — All our work meets the rigorous standards of the National Inspection Council for Electrical Installation Contracting.
  • Over 25 years’ combined experience — Founder James Walsh completed his City and Guilds apprenticeship in 1999, giving Gabe Electrical deep roots in the trade.
  • Local knowledge — We’re based in Cardiff and know the property types and common wiring issues across the city, from Canton terraces to Cyncoed family homes.
  • Transparent pricing — We provide clear quotes after initial assessment, with no hidden charges.
  • Prompt availability — We understand electrical faults can’t always wait. We work to attend as quickly as possible and typically start work within days of quote acceptance.
  • 5-star reputation — Consistently rated 4.9/5 by Cardiff homeowners and landlords on Google and Checkatrade.

Electrical Fault Finding Across Cardiff & South Wales

Gabe Electrical provides fault finding and electrical repair services throughout Cardiff and its surrounding areas, including:

  • Cardiff City Centre
  • Canton, Pontcanna and Roath
  • Cyncoed and Lisvane
  • Penarth
  • Dinas Powys
  • Barry and the Vale of Glamorgan
  • Llandaff and Whitchurch
  • Caerphilly and Rhondda Cynon Taf

Not sure if we cover your area? Get in touch — if we can get to you, we will.

cardiff residential street

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.

Let Gabe take care of Your Electrical fault finding In Cardiff