Fault Finding Electrician

Home Fault Finding Electrician
TrustMark government endorsed scheme
Guild of Master Craftsmen member
NICEIC approved contractor
NICEIC domestic installer
TrustMark government endorsed scheme
Guild of Master Craftsmen member
NICEIC approved contractor
NICEIC domestic installer

Fault Finding Electrician in London

Fuses tripping, no power, or an RCD that keeps going off? NICEIC Approved electricians, rated 5.0 from 150+ Google reviews. Same-day appointments available.

Clear fault-finding prices

£90Outside the Congestion Charge zone
Visit and up to one hour of fault finding
£120Inside the Congestion Charge zone (central London)
Visit and up to one hour of fault finding
  • Call-out charge – the price above covers the visit and up to one hour on site.
  • After the first hour: £80 per hour, or a fixed price agreed with you before work continues.
  • Evenings, weekends and bank holidays: price confirmed on the phone before we come out.
  • Parts, if needed, are quoted before fitting.

How it works

  • We find the fault in over 85% of visits within the first hour. Some faults are intermittent or hidden inside walls, floors or ceilings, so this cannot be guaranteed every time.
  • Small repairs are often completed within the same hour.
  • If further work is needed, we explain what we found and agree the price with you before any extra work starts.

Proper testing, not guesswork

We use professional Megger test equipment to trace the fault, so we fix the cause rather than just resetting the trip switch.

Measuring earth leakage with a Megger clamp meter
Earth leakage clamp test – tracing where the leakage is coming from
Clamp meter testing leakage at an RCD fuse board
Testing leakage at the fuse board to find which circuit trips the RCD
Checking earth bonding with a Megger multifunction tester
Checking earthing and bonding with a multifunction tester

What we help with

  • Power loss and circuits or RCDs that keep tripping
  • Faulty sockets, lighting and appliance supplies
  • Intermittent electrical faults
  • Domestic and commercial fault finding

Real faults we have found

Burning smells, scorch marks or a circuit that keeps tripping are warning signs. These are faults our electricians found on recent call-outs in London.

Burnt live cable behind a socket in a London home
Burnt live cable behind a socket – melted insulation and corroded copper
Close-up of scorched socket terminals and wiring
Scorched socket terminals found when we opened up the faceplate
Burnt double socket in a London home
Burnt socket – scorched by an overheating connection
Overheated cable at an LED driver terminal
LED driver – blackened, overheated cable at the terminal
Junction boxes and cables under a kitchen sink
Junction boxes under a kitchen sink, next to water and damp

What our customers say

★★★★★
“Arrived at the time specified and repaired the fault at lightning speed without compromising quality.”Huma A. – Google review
★★★★★
“Instant help.. totally reliable. Came and sorted electrical fault straight away.”Neil R. – Google review
★★★★★
“Found the fault very quickly and would use again.”Leonie N. – Google review
★★★★★
“Tricky problems with power, faulty lights… always very responsive, knowledgeable and very helpful.”Mathew D. – Google review

Help us find the fault faster

When you call, tell us what tripped, when it happens and what was switched on at the time. A photo of your fuse board (consumer unit) sent on WhatsApp also helps us prepare before we arrive.

Fault-finding terms

  • The fixed visit price (£90 outside, £120 inside the Congestion Charge zone) covers attendance and up to one hour on site, including fault finding and small repairs completed in that time.
  • Time after the first hour is charged at £80 per hour, or at a fixed price agreed with you in advance. No further work starts without your agreement.
  • Parts and materials are quoted and agreed before fitting.
  • Evening, weekend and bank holiday visits are charged at the rate confirmed on the phone before we attend.
  • Payment is due on completion of the visit.
  • All prices are all-inclusive, with nothing added on the day.

If there is immediate danger

Do not touch exposed wiring or equipment that is hot, smoking or wet. If there is fire or immediate danger, leave the property and call the emergency services first.

Call now: 07754 549090

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Serving Kensington, Chelsea, Knightsbridge, Westminster and surrounding London areas. Send your postcode and a brief description to get started.

Need urgent help? Call 07754 549090

What our customers say

Read recent feedback from customers who chose A2Z Electric for electrical work across London.