Tripped RCD or breaker
The most common cause. A fault on one circuit trips the RCD protecting a whole group of circuits, so half the house goes off.
No Power? Emergency Power Cut Electrician in Cardiff
Lost power to the whole property or just part of it? We help you work out whether it is a network fault or your own installation, then come out day or night to restore it safely.
- Fast Response
- Upfront Pricing
- Part P Registered
- Fully Insured
Day, night, weekends & bank holidays
Fully insured, qualified electricians
Clear fixed quotes, no surprises
Local to Cardiff & the Vale
24/7emergency
call-outs
call-outs
Power cuts and power loss
Network fault or your installation? We help you tell the difference.
If your neighbours and the street lights are also off, the problem is on the local network and needs reporting to the network operator by calling 105. If it is only your property, or only some of your circuits, the fault is usually inside your installation, and that is where we come in.
We check your meter tails, main switch, consumer unit and circuits to find why the power has gone, whether that is a burnt main connection, a tripped or damaged RCD, a loose neutral or a fault on a single circuit. We restore what is safe straight away and explain anything that needs further work.
Call us if you notice:
- Only your property is off
- Half the house has no power
- Lights work but sockets do not
- Power keeps dropping out
- Lights dim, then cut out
- Burning smell before it went off
Common causes
Common causes of power loss in a property
We test properly to find the real cause, so the problem is fixed rather than patched.
Loose or burnt connections
A loose connection at the main switch, meter tails or a circuit can overheat and fail, cutting the supply. These need urgent attention.
Failed main switch
Main switches and isolators can wear out or burn internally, leaving you with no power even though nothing has tripped.
Faulty circuit wiring
Damaged cables, failed junction boxes or rodent damage can take out a lighting or socket circuit completely.
Prepayment meter issues
If you have a prepayment meter, check your credit and emergency credit first. We can tell you if the meter itself looks faulty.
Network or supply faults
A problem on the incoming supply belongs to the network operator. We can confirm it with testing and tell you who to call.
Before we arrive
Stay safe until we arrive.
What to do right now about power cuts and loss of power, while a qualified electrician is on the way to you.
Check the neighbours
Look at the street lights and next door. If they are off too, call 105 to report a power cut to the network operator.
Look at your consumer unit
Check for a switch in the down position. Try resetting it once with the appliances on that circuit unplugged.
Check your meter
If you have a prepayment meter, check your credit and any emergency credit before calling.
Switch off heaters and cookers
Turn off cookers, heaters and irons so nothing comes back on unattended when the power returns.
Burning smell or noise?
If there is a burning smell, crackling or heat from the meter or fuse box, keep clear and call us straight away.
Call us if it is just you
If your neighbours have power and resetting does not help, call us and we will find the fault.
Warning signs
Is the meter or fuse box hot, scorched or crackling?
A burnt main connection can cut your power and create a fire risk at the same time. Do not touch it, keep everyone away and call us straight away.
Call 029 2209 0164How it works
How we get your power back on
- 1
You call
We help you rule out a network fault and agree a price before setting off.
- 2
We trace it
We test from the meter tails through the main switch and consumer unit to every circuit.
- 3
We restore power
Safe circuits go back on straight away while the fault is repaired or isolated.
- 4
We certify
Repairs are tested and certified, and we explain anything that needs further work.
Lost power and the neighbours have not?
Call now and a Cardiff electrician will help you get it back.
Why Cardiff Emergency Electricians
Professional standards, local service.
We are a Cardiff team, not a national call centre. The person you speak to knows the city, the housing stock and how to get to you quickly.
Certified & experiencedPart P registered electricians who work to BS 7671 on every job.
Genuinely 24/7Nights, weekends and bank holidays, with no answering machine.
Homes & businessesSolutions tailored to houses, flats, HMOs, shops and offices.
Safety firstTested, certified work you can show your insurer or letting agent.
Efficient & reliableOn time, tidy, and the fault fixed properly the first time.
Other emergency call-outs
More emergency electrical services
Whatever the problem, one call gets a qualified Cardiff electrician on the way, day or night.
Tripping fuse box & RCD faults
Trip switch keeps flicking off or will not reset? We find the faulty circuit or appliance and get your power back on safely.
Find out moreBurning smells & scorch marks
A hot, fishy or burning smell, or scorched fittings, can mean something is overheating. We trace it and make it safe.
Find out moreSparking sockets & switches
Sparks, crackling or a socket that is hot to touch? We replace damaged fittings and check the circuit behind them.
Find out moreFlickering or failed lighting
Lights flickering, buzzing or a whole circuit out? We find loose connections and failed fittings before they become something worse.
Find out moreWater in your electrics
Leaks into lights, sockets or the fuse box are dangerous. We isolate the affected circuits, test them and make them safe.
Find out moreElectric shocks & exposed wiring
A shock from a fitting or appliance, or bare wires after DIY or damage, needs urgent attention. We make it safe and fix it properly.
Find out moreBusiness power loss
Shops, offices, restaurants and landlords: we restore power, emergency lighting and critical circuits fast to keep you trading.
Find out moreNot sure what the problem is?
Call and describe what is happening. We will tell you what to do right now and get an electrician on the way.
029 2209 0164Areas we cover
Power cut call-outs across Cardiff, Penarth & the Vale
From the city centre and Cardiff Bay out to Radyr, Creigiau and St Mellons, our electricians are based locally so help is never far away. Pick your area for local information. We also cover Penarth, Barry and the rest of the Vale of Glamorgan.
Check your area- Adamsdown CF24
- Birchgrove CF14
- Caerau CF5
- Canton CF11
- Cardiff Bay CF10
- Cardiff City Centre CF10
- Cathays CF24
- Creigiau CF15
- Cyncoed CF23
- Danescourt CF5
- Ely CF5
- Fairwater CF5
- Gabalfa CF14
- Grangetown CF11
- Heath CF14
- Lisvane CF14
- Llandaff CF5
- Llandaff North CF14
- Llanedeyrn CF23
- Llanishen CF14
- Llanrumney CF3
- Pentwyn CF23
- Pentyrch CF15
- Penylan CF23
- Pontcanna CF11
- Pontprennau CF23
- Radyr & Morganstown CF15
- Rhiwbina CF14
- Riverside CF11
- Roath CF24
- Rumney CF3
- Splott CF24
- St Fagans CF5
- St Mellons CF3
- Thornhill CF14
- Tongwynlais CF15
- Tremorfa CF24
- Trowbridge CF3
- Whitchurch CF14
FAQ
Your questions, answered
Common questions about power cuts and loss of power. Still unsure? Call us and a qualified electrician will talk it through.
How do I know if a power cut is my fault or the network?
If your neighbours and the street lights are off too, it is almost certainly a network fault: call 105 to report it. If only your property, or only part of it, is affected, the fault is likely in your installation and an electrician should check it.
What is 105?
105 is the free UK number for reporting power cuts. It puts you through to your local electricity network operator, who look after the cables and supply up to your meter.
Why have I lost power to only half the house?
Most homes split their circuits between two RCDs. A fault on one circuit can trip the RCD that protects several circuits, so half the house goes off. Unplug appliances and try resetting; if it trips again, call us.
Is it dangerous if my lights dim before the power goes?
It can be. Dimming, flickering or a burning smell before a power loss can point to a loose or overheating connection. Switch off if it is safe and call an electrician.
Do you prioritise vulnerable customers?
Tell us when you call if anyone in the property relies on medical equipment, is elderly or has young children, and we will do our best to get to you first. You can also join your network operator's free Priority Services Register.
Get in touch
Need an electrician in Cardiff?
For emergencies, always call. For quotes and planned work, send us a message and we will ring you back.
24/7 emergency line 029 2209 0164