Electrical repairs and fault finding in London
A circuit that keeps tripping, a socket that has gone dead, lights that flicker or a fan that has stopped: most electrical faults in a home come down to one failing part or connection, and finding it is the skilled bit. Our electricians trace the fault properly, explain what they found, and agree the price with you before the repair. Because we are plumbers as well, we are used to the jobs where water and electrics meet, from electric showers to a leak that has reached the wiring.
- Registered electricians
- Fully insured, DBS-checked engineers
- Emergency callout available 24/7
- Price agreed before work starts
- Workmanship guaranteed
Monday – Sunday, 7:00 AM – 10:00 PM · Out-of-hours emergency? Call 020 3576 5825
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What this includes
- Circuits that keep tripping the consumer unit
- Dead, loose or damaged sockets and switches
- Flickering or failed lighting
- Extractor fans in bathrooms and kitchens
- Electric shower and appliance circuits
- Electrical checks after a leak
Worth knowing first
A little of this might mean you do not need to call us at all — we would still rather you knew it.
When the power keeps tripping
A trip switch or RCD that keeps going off is doing its job: it has detected a fault. Resist the urge to keep resetting it. Unplug everything on that circuit, reset it once, then plug things back in one at a time. If one appliance trips it every time, the fault is in that appliance. If it trips with nothing plugged in, the fault is in the fixed wiring and needs an electrician.
After a leak
If water has reached a light fitting, a socket or the consumer unit, turn the power off at the consumer unit, keep it off, and do not use anything in that area until the wiring has dried out and been checked. Because we do both trades, we can deal with the leak and the electrical check on the same job.
Signs worth taking seriously
A burning smell, scorch marks around a socket, sockets or switches that feel warm, buzzing from the consumer unit, or lights that dim whenever something else switches on. If it is safe to do so, switch off at the consumer unit and call us.
Extractor fans and condensation
A bathroom or kitchen fan that stops the moment the light goes off, or barely moves any air, is one of the most common causes of condensation and black mould in London flats. Replacing it with a fan that has a run-on timer or a humidity sensor is a small electrical job that makes a real difference.
What affects the price
Electrical work is priced once the engineer has found the cause, and you get the price before the repair starts. These are the things that make the biggest difference.
How long the fault takes to trace
A dead socket with a loose connection is found in minutes. An intermittent trip that only happens when two appliances run together, or a fault somewhere along a long circuit, takes methodical testing to pin down.
Getting to the wiring
Cables under suspended floorboards or in a loft are easy to reach. Wiring buried in plaster, behind tiles or fitted units, or in a flat where the circuit runs through a shared ceiling void, takes longer to get at and make good.
The age of the installation
A modern installation with clearly labelled circuits is straightforward to work on. Older wiring, a mix of alterations by previous owners, or a fuse board without modern protection can mean more testing, and sometimes a recommendation to upgrade before adding anything new.
Parts and fittings
A standard socket, switch or fan is a small cost. Specific fittings you have chosen, a humidity-sensing fan with new ducting through an outside wall, or a replacement for an obsolete part all change the price.
The price is agreed before any work starts. We take card and cash.
Common questions
Do you do electrical work as well as plumbing?
Yes. Ninja Plumbers carries out electrical work alongside plumbing, heating and drainage. That is useful on jobs that need both, such as an electric shower, a new bathroom, or water that has reached the wiring.
My electrics keep tripping. Is it dangerous?
The trip is a safety device doing its job, so the circuit is protected. The fault behind it still needs finding. If it trips with nothing plugged in, or you notice a burning smell or scorch marks, leave that circuit off and call us.
Can you replace or fit an extractor fan?
Yes. We replace and fit extractor fans in bathrooms and kitchens, including fans with a timer or humidity sensor that keep running after you leave the room, which is what actually clears the moisture.
Can you do the electrics for a new bathroom or kitchen?
Yes. We can handle the plumbing and the electrical side of a bathroom or kitchen together, so you are not coordinating separate trades and waiting on one to finish before the other starts.
How is the price worked out?
For a fault, the engineer finds the cause first and then gives you a price for the repair before starting. For planned work such as new sockets or a fan, we can often give you an idea from a description and photos, then confirm the price on site before any work begins.
Can you look at the electrics after water has come through a ceiling?
Yes, and it is worth doing before the power goes back on in that area. We can find and stop the leak, then check the affected circuits once the fittings and cables have dried out, rather than you booking two separate trades.
What should I do if a socket is scorched or smells of burning?
Stop using it, switch that circuit off at the consumer unit if you can do so safely, and do not plug anything else into it. A scorched socket usually means a loose or overheating connection, which needs repairing before the circuit is used again.
More electrical work we take on
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Emergency Electrician
Power loss, trips that will not reset, burning smells and water in the electrics. We take calls around the clock.
More on Emergency Electrician -
EICR Certificates
Electrical Installation Condition Reports for landlords, homeowners and buyers, with any remedial work priced separately.
More on EICR Certificates -
Fuse Box Replacement
Old fuse boxes swapped for modern consumer units with RCD protection, tested, certified and notified for you.
More on Fuse Box Replacement -
Rewiring
Full and partial rewires for houses and flats, planned around you and the other trades, then tested and certified.
More on Rewiring -
EV Charger Installation
Home charge points surveyed, fitted, notified and certified, with any supply upgrades priced up front.
More on EV Charger Installation
Need electrical repairs in London?
Describe the problem and give us your area, and we’ll tell you the price before anyone starts work.