Do You Really Need an Emergency Electrician?
Before paying for an emergency call-out, there are several simple checks you can make yourself. A tripped RCD, a faulty plug-in appliance or a neighbourhood power cut may be easier to identify than you think.
Start with the five checksNot every electrical problem requires an electrician to attend immediately. This guide explains how to narrow down the cause without removing covers, touching wiring or carrying out electrical work. If the checks point to a fixed-wiring fault, we'll explain when it's worth booking a professional investigation.
Five checks before calling an emergency electrician
Is it a local power cut?
Check whether neighbours or communal areas also have no power. Look at the UK Power Networks power-cut map or call 105. If the network is down, booking an electrician will not restore it.
Is the meter or prepayment supply working?
If you use a prepayment meter, check the balance and any messages on its display. If the whole property has no power but the consumer unit appears normal, contact your supplier or network operator rather than opening the meter or intake equipment.
Has a breaker or RCD tripped?
Look at the consumer unit switches. You may find one MCB/RCBO down, or an RCD feeding several circuits switched off. Do not remove the consumer unit cover. Only operate accessible switches if the equipment is dry, undamaged and safe to approach.
Could a plug-in appliance be the cause?
Switch off and unplug accessible appliances on the affected sockets, including kettles, washing machines, extension leads and outdoor equipment. If conditions are safe, try one reset. Reconnect appliances individually; leave any suspected faulty item unplugged.
Is it one room, one circuit or the entire property?
Check whether sockets, lights, heating and fixed equipment are affected separately. Make a note of the tripped device and what was running at the time. This information helps an electrician diagnose the fault efficiently.
Power restored?
If a clearly faulty appliance is disconnected and the protective device stays on, you may not need an emergency visit. Do not use that appliance until repaired or replaced. Arrange an inspection if the fault recurs or its cause is uncertain.
What different electrical problems might mean
| What you notice | What you can check | When to book an electrician |
|---|---|---|
| RCD trips | Unplug portable appliances and try a single reset if safe. | It trips again, will not reset or the cause is fixed wiring/equipment. |
| One socket not working | Try a known working lamp or device. Check whether other sockets are affected. | Socket is loose, damaged, hot or still dead while others work. |
| Lights not working | Check a replaceable lamp and relevant switch or breaker. | Multiple lights fail, a breaker trips, or wiring/fittings may be faulty. |
| Outdoor lighting or sockets trip | Unplug outdoor appliances and stop using wet or damaged equipment. | Trip persists or moisture is suspected in fixed fittings or connections. |
| Immersion heater or heating causes a trip | Switch off at the normal user control and record when it happens. | Fixed appliances or their circuits require testing; do not open covers. |
| Entire home loses power | Check the outage map, meter status and accessible main switch. | Neighbours have power but yours remains off; seek network operator guidance first if the meter/intake is implicated. |
Why does the RCD keep tripping?
An RCD monitors the difference between current flowing out and returning. Leakage to earth can cause it to disconnect. Moisture, damaged appliance insulation, heating elements and fixed-wiring defects can all contribute.
If the RCD stays on after all portable equipment is unplugged, reconnect items one by one. If a particular appliance causes the trip, stop using it. If it trips with portable appliances disconnected, or a fixed appliance is suspected, arrange professional electrical fault finding. Never repeatedly force the device back on or bypass it.
An RCD may also protect circuits or loads beyond the sockets you have unplugged; this simple check does not prove fixed wiring is fault-free.
When is an emergency visit genuinely needed?
- Urgent: exposed live parts, overheating, smoke, burning smell, arcing or water ingress affecting electrical equipment.
- Prompt attendance: repeated protective-device tripping, complete loss of power isolated to your property, or critical fixed equipment without a safe alternative.
- Often suitable for a scheduled visit: a single failed light fitting, a dead socket with no signs of damage, or an identified faulty plug-in appliance that has been disconnected.
Where there is an immediate fire or life-safety emergency, call 999 rather than treating an electrician as the first emergency responder. For external supply/network faults, use 105.
Electrical problems at home — FAQs
Can I reset a tripped RCD or circuit breaker myself?
Yes, operating an accessible switch is normally straightforward when the consumer unit is dry, undamaged and safe. Unplug portable appliances first. Try once and stop if it trips again; do not remove covers or touch internal wiring.
Why does my RCD trip at night or when it rains?
A timed load, heating element, outside circuit or moisture-related fault may be involved. Note the time and what equipment was operating. Because the cause could be fixed wiring, testing is needed if it recurs.
Why do my sockets work but my lights do not?
Lighting and socket circuits are often protected separately. Check for a failed lamp and whether a lighting breaker has tripped. If several lights fail or the breaker trips, arrange inspection.
Should I call my electricity supplier if the whole house loses power?
First check neighbours and the local outage map. Call 105 for suspected network faults. Your supplier may also need to help with meter or prepayment issues. Do not interfere with service-head or meter equipment.
Can I disconnect a faulty outdoor appliance and reset the RCD?
Only if the plug and surroundings are dry, accessible and undamaged. Do not handle wet equipment. If a trip persists or fixed outdoor connections may contain water, leave that circuit off and call an electrician.
Will I need a full EICR for one fault?
Not necessarily. A targeted fault-finding visit and appropriate testing may be more relevant. An EICR assesses the installation's condition more broadly and may be advised depending on the circumstances.
More advice from NOD Electrical Services
Help when the simple checks haven't solved it
NOD Electrical Services provides fault finding and emergency electrical support across Streatham and South London. Tell us which circuits are affected and what you've already checked, so we can recommend the appropriate next step.
Request an EstimateCall 020 8050 3408Technical context: BS 7671 Chapter 41 (protection against electric shock), Regulation 531.3.2 (RCD selection and unwanted tripping), and Part 6 (inspection and testing). This homeowner guide does not constitute testing or certification.
