Serving Barry, Cardiff, Penarth, Sully, and the Vale of Glamorgan
Polaris Electrical

Fault Finding & Diagnostics

Electrical faults need a clear, professional response. Fault Finding & Diagnostics is available for homeowners, councils and commercial customers across Barry and surrounding areas.

Fault Finding & Diagnostics, Handled from Start to Finish

Electrical faults aren’t always obvious: Intermittent tripping, flickering lights, dead circuits or burning smells all point to underlying problems that need professional investigation.

Polaris Electrical provides fault finding and diagnostics for domestic and commercial properties across Barry, Cardiff, Penarth, Sully and the Vale of Glamorgan, keeping homes and businesses safe.

With 30 years of combined experience and full NAPIT registration, our electricians use advanced testing equipment and systematic techniques to find the root cause, even when symptoms come and go.

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Fault Finding & Diagnostics, Handled from Start to Finish

Fault finding and repair services

Fault Diagnostics

Methodical testing of insulation resistance, earth continuity, polarity and RCDs to trace overloads, damaged cables, faulty switches and earth faults.

Emergency Call-Outs

Rapid response for power loss, burning smells or sparking outlets, with immediate repairs to remove any danger.

Fully Insured Service

Professional assessment of your installation, ideal when buying a property or if it hasn’t been inspected for years.

Planned Maintenance Contracts

Scheduled inspections and preventative maintenance for businesses and for larger or older homes, catching issues before they cause failures.

Our team at work

Why Choose Us for Fault Finding?

30 Years’ Combined Experience

Our electricians have dealt with a wide range of faults, which means quicker diagnosis and repairs that last.

Straight to Someone Who Knows

When you call, you speak to people who understand electrical work and care about solving the problem properly.

Fully Equipped on Arrival

Our electricians arrive with the right tools and testing equipment to make your property safe on the first visit.

How It Works

01

Arrange a Callout

Contact Polaris Electrical to discuss the electrical issue and arrange a suitable visit. Same-day callouts are available when the problem needs prompt attention.

02

Assess the Issue

The electrician reviews the fault and carries out fault finding and diagnostics to establish what needs attention, whether it is a small repair or part of a larger project.

03

Agree the Next Step

You receive a clear, professional explanation of the situation and the appropriate next step for your property or premises.

Frequently Asked Questions

The service is designed to establish what is affecting your electrical system or installation and clarify what needs attention. The electrician will explain the situation and the appropriate next step for your property or premises.

Need an Electrical Fault Investigated?

Speak to Polaris Electrical about Fault Finding & Diagnostics in Barry, Cardiff, Penarth and nearby areas.

Request a Callout

What Our Customers Say

“Excellent service from start to finish. Great communication, expert electrical work and very competitive price. Will definitely use again!”
— Scott BrittGoogleGoogle
“Highly recommend the Excellent service from Rhys, he advised me on the complete re-wireing of our kitchen, from the spot lights in the ceiling to the hidden under floor wires to power for the work top island! with out him it would of been an absolute nightmare. Thank you Rhys. We will be using you again in the future.”

— Simon Cox

GoogleGoogle2026-05-13
“Really fast service, found the issue and sorted it quickly with an extremely reasonable price!”

— Aimee-beth Jones

GoogleGoogle2026-03-28