Our Services
Fault Finding and Repairs
About This Service
Fault Finding and Repairs
A H Electrical Ltd delivers fast, accurate fault finding and durable repairs for domestic properties across Oxford. With 15 years' experience and NICEIC plus Aico smoke alarm accredited credentials, the team traces everything from nuisance RCD trips to hidden ring final faults. Work is completed to current regulations, with clear reporting and certification where required. Punctual, respectful and focused on getting your power back safely.

Our Process
How It Works
Initial Inspection & Live Testing
Arrival on time, visual inspection and targeted live tests — RCD/MCB operation, insulation resistance, loop impedance and earth continuity — to identify affected circuits.
Diagnosis & Clear Quotation
We explain the fault (poor neutral joint, overloaded ring, faulty appliance, damaged cable), outline repair options and provide a transparent written quote before any work begins.
Repair, Test & Certificate
Repairs completed using plated joints, correct cable types and industry-standard methods, followed by final testing and certification (repair certificate or EICR where necessary).
Benefits
Why Choose us for Fault Finding and Repairs?
Fast, Accurate Diagnosis
Specialist techniques — circuit tracing, insulation testing and loop impedance checks — pinpoint intermittent and hard-to-find faults so repairs are right first time.
Safe, Compliant Repairs
Work carried out to current wiring regulations with appropriate testing and written certification; we’re NICEIC and Aico smoke alarm accredited for added assurance.
Local, Reliable Electricians
15 years serving Oxford properties — from Victorian terraces and student houses to modern flats — with punctual appointments and respectful workmanship.
Common faults we resolve: persistent RCD/RCBO trips, nuisance trips from EV chargers or showers, flickering lighting, intermittent sockets on ring final circuits, and hidden damage from damp or cable abrasion. Our approach combines non-destructive circuit tracing with targeted live tests (insulation resistance, earth loop Zs, continuity) to locate the problem without unnecessary rewires. We carry the specialist tools to isolate faults in consumer units, junctions and buried runs and can make temporary safe isolations where needed to restore essential circuits.
After repair: testing and paperwork. Every repair is followed by completion tests and a written record — a repair certificate or an Electrical Installation Condition Report (EICR) when the fault affects safety or landlord duties. If smoke alarm replacement or testing is needed we follow aco smoke alarm accredited procedures. We advise on long-term fixes, provide clear recommendations (for example upgrading an ageing consumer unit or segregating an EV charger circuit) and schedule follow-ups where required.
FAQ
Frequently Asked Questions
For most domestic jobs in Oxford we offer same-week appointments and aim to diagnose common RCD/MCB trips on the first visit. Complex or intermittent faults may require additional tracing and agreed return visits, which we plan with you to minimise disruption.
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