Electrical Fault Finding Cost
In the UK, electrical fault finding is priced on survey. Get an Instant Quote. Last updated October 2026.
Electrical fault finding is priced on survey. The price follows the time to isolate the fault, access, and any repair agreed after the fault is found. Electricians who do electrical fault finding
What affects the price
- How quickly the fault can be reproduced and isolated
- Whether the problem is in an appliance, accessory, protective device, or hidden fixed wiring
- Access to cable routes, junctions, fittings, and the consumer unit
- Whether the visit is during standard hours or an urgent out-of-hours call-out
- Replacement parts and repair work agreed after diagnosis
What’s included
- A description of the symptoms and affected circuits
- Visual inspection and electrical tests appropriate to the fault
- Systematic isolation to identify the faulty appliance, accessory, device, or circuit section
- An explanation of the finding and a separate repair recommendation or quote where needed
Good to know
How long does it take? The time cannot be predicted reliably before diagnosis because intermittent and concealed faults take longer to isolate. Ask whether the quote includes a minimum visit, the first hour, and any time limit before further approval is needed.
Do I need one? Arrange competent fault finding for repeated tripping, unexplained loss of power, burning smells, scorch marks, heat, sparks, or electric shocks. Isolate the affected circuit when there is immediate danger and do not repeatedly reset a protective device that trips again.
Before you book, read how to check an electrician is qualified.
How to pay less
- Record when the fault occurs and which appliances or circuits are in use
- Make the consumer unit and affected fittings accessible before the visit
- Ask how the minimum charge, hourly rate, parts, and repair approval will be handled
- Use standard working hours when the fault is safely isolated and not urgent
