Fault Finding &
Diagnostics in South Wales
Expert electrical fault finding and diagnostic services using advanced testing equipment. We trace the root cause of electrical problems quickly and accurately across South Wales.
Electrical Fault Finding & Diagnostic Services
Electrical faults can be frustrating and difficult to pinpoint. Intermittent tripping, flickering lights, unexplained power loss, and unusual buzzing sounds all indicate underlying issues that need professional diagnosis before they become dangerous.
At Megalec Electrical Solutions, our electricians use advanced diagnostic equipment including insulation resistance testers, thermal imaging cameras, and circuit analysers to trace faults accurately. This means we find the actual cause – not just treat the symptoms.
We provide fault finding services for homes and businesses across Cardiff, Newport, Swansea, Bridgend, Caerphilly and all surrounding areas. Our systematic approach saves you time and money by identifying the exact problem on the first visit.
Our Fault Finding Advantages
Accurate diagnosis, efficient resolution
Advanced Test Equipment
We use professional‑grade diagnostic tools including insulation testers, loop impedance testers, and thermal imaging to pinpoint faults precisely.
Fast Fault Location
Our systematic diagnostic approach means we locate faults quickly, reducing the time and cost of investigation.
Root Cause Analysis
We don’t just fix symptoms. We identify why the fault occurred and address the underlying cause to prevent recurrence.
Save on Repair Costs
Accurate diagnosis means targeted repairs. No unnecessary work or guesswork – you only pay for what actually needs fixing.
Detailed Fault Reports
We provide clear reports explaining what we found, what caused it, and what we recommend – in plain English, not jargon.
Certified Electricians
All fault finding is carried out by NAPIT approved electricians with extensive experience in electrical diagnostics.
Our Diagnostic Process
Systematic approach to finding electrical faults
Describe the Issue
Tell us what’s happening – when it occurs, how often, and any patterns you’ve noticed. This helps us plan our investigation.
Visual Inspection
We inspect the affected area, consumer unit, and accessible wiring for obvious signs of damage, overheating, or deterioration.
Electrical Testing
Using professional test equipment, we systematically test circuits, insulation resistance, earth continuity, and loop impedance.
Report & Repair
We explain our findings clearly and carry out the repair immediately where possible, or provide a detailed quote for larger work.
Describe the Issue
Tell us what’s happening – when it occurs, how often, and any patterns you’ve noticed. This helps us plan our investigation.
Visual Inspection
We inspect the affected area, consumer unit, and accessible wiring for obvious signs of damage, overheating, or deterioration.
Electrical Testing
Using professional test equipment, we systematically test circuits, insulation resistance, earth continuity, and loop impedance.
Report & Repair
We explain our findings clearly and carry out the repair immediately where possible, or provide a detailed quote for larger work.
Why Choose Megalec for Fault Finding?
Electrical fault finding requires experience, knowledge, and the right equipment. Many electricians resort to guesswork, which wastes your time and money. Megalec’s diagnostic‑first approach means we find the actual problem and fix it properly the first time.
Service Areas Across South Wales
Available throughout Cardiff, Newport, Swansea, Bridgend & surrounding areas
Frequently Asked Questions
Fault finding typically costs £100‑£200 for the diagnostic visit, depending on complexity. If we can fix the fault during the same visit, the diagnostic fee is often included in the repair cost.
Simple faults can be located within 30‑60 minutes. More complex intermittent faults may take 1‑3 hours of systematic testing. We’ll keep you informed throughout the process.
Yes, intermittent faults are our speciality. We use data logging equipment and systematic testing to identify faults that only occur under specific conditions, such as when certain appliances are running.
Common causes include aged wiring, loose connections, moisture ingress, rodent damage, overloaded circuits, faulty appliances, and deteriorated insulation. We identify the specific cause in your property.
Yes, we provide a clear report explaining what we found, the cause of the fault, and our recommended solution. This is provided in plain English so you understand exactly what’s needed.
Absolutely. We provide fault finding services for offices, shops, restaurants, warehouses, and other commercial premises. We can work outside business hours to minimise disruption.
Got an Electrical Fault in South Wales?
Don’t let electrical faults go undiagnosed. Contact Megalec for expert fault finding and diagnostics across South Wales.