When your power fails, the first step is to stay safe, check whether the problem is only affecting your property, and avoid touching anything damaged, wet, hot, or sparking. In many cases, a power cut is caused by the local electricity network, but if the fault is inside your home, business, industrial unit, or agricultural site, you may need emergency electrician support.
This guide explains what to do when the power goes off, when to call an electrician, and how to reduce the risk of the same problem happening again. It covers:
- The first checks to make when your power fails
- How to tell whether it is a local power cut or an electrical fault
- When the situation is urgent
- Common causes of power failure
- What not to do during an electrical emergency
- What an emergency electrician can check
- How the problem is repaired and tested
- What businesses, landlords, industrial sites, and farms should consider
- How to reduce future power failures
- How JPEC Electrical can help
First, check whether the power cut is only affecting you
Before assuming there is a fault in your property, check whether nearby homes or businesses have also lost power. If the whole street, estate, or business park is affected, the issue may be with the local electricity network rather than your wiring.
You can look outside to see whether streetlights, neighbouring properties, or nearby units still have power. In areas such as Horley, Reigate, Redhill, Crawley, Surrey, and West Sussex, local network faults can sometimes affect whole roads or wider areas.
If it appears to be a network power cut, contact your electricity network operator by calling 105. This is the free UK number for reporting power cuts and getting updates from the company responsible for the cables and substations in your area.
Check your consumer unit or fuse board
If your property is the only one affected, check your consumer unit, often still called a fuse board. This is where the main switches, circuit breakers, and RCDs are usually located.
A switch may have tripped due to a fault, overload, damaged appliance, moisture, or wiring issue. If a single circuit has tripped, such as sockets, lights, heating, or outdoor power, the rest of the property may still have electricity.
You can look for:
- A main switch in the off position
- An RCD or RCBO that has tripped
- A circuit breaker that has moved down
- Signs of burning, heat, cracking, or buzzing
If anything looks damaged, smells of burning, or feels hot, do not reset it. Turn off the power if it is safe to do so and call a qualified electrician.
Do not keep resetting a tripping circuit
If a circuit trips once and resets normally, it may have been caused by a temporary overload or appliance fault. If it trips again, there is likely to be an underlying problem that needs checking.
Repeatedly forcing a circuit back on can be unsafe. Protective devices trip for a reason. They are designed to reduce the risk of electric shock, overheating, and fire.
For example, a socket circuit in a shop in Crawley may trip because of a faulty fridge, damaged extension lead, or overloaded supply. A lighting circuit in a home in Reigate may trip because moisture has entered an outside light. The correct response is to find the cause, not simply keep resetting the switch.
JPEC Electrical can inspect, test, and identify the reason for repeated tripping, then explain the fault and repair options in plain English.
When is a power failure an emergency?
A power failure becomes an emergency when there is a safety risk, loss of essential services, or a serious impact on the property or business. Some faults can wait for a planned visit, but others need urgent attention.
You should treat the situation as urgent if you notice:
- Burning smells, smoke, sparks, or scorch marks
- Buzzing or crackling from sockets, switches, or the fuse board
- Power failure affecting medical equipment, security systems, heating, or critical business operations
- Water leaking near electrics
- Repeated tripping that will not reset
- Partial power loss, especially if lights are dimming or behaving strangely
- Damaged cables, sockets, or outdoor electrical equipment
If there is fire, smoke, or immediate danger, call the emergency services first. Do not put yourself at risk by investigating live electrical equipment.
Common reasons your power may fail
Power can fail for several reasons. Some are outside your control, such as damage to the local electricity network. Others are caused by faults inside the property.
Common causes include faulty appliances, overloaded circuits, water ingress, damaged cables, old wiring, loose connections, failed protective devices, or problems with outdoor electrical supplies.
In older homes around Surrey and West Sussex, faults may be linked to ageing wiring, outdated fuse boards, or circuits that were not designed for modern electrical loads. In commercial, industrial, and agricultural settings, faults may also be caused by machinery, pumps, refrigeration, heating systems, lighting, or high-demand equipment.
The important point is that the cause is not always obvious from the outside. Proper testing is often needed before a safe repair can be made.
What not to do when the power fails
Electrical faults can be dangerous, especially when water, heat, damaged cables, or repeated tripping are involved. A cautious approach is usually the safest approach.
Do not remove covers from the consumer unit, sockets, switches, or electrical equipment. Do not touch exposed wiring. Do not use damaged extension leads to bypass a fault. Do not run cables through wet areas or around damaged equipment just to get power back temporarily.
It is also worth avoiding guesswork. Unplugging appliances one by one can sometimes help identify a faulty item, but this should only be done if it is safe and there are no signs of burning, water damage, or exposed conductors.
For businesses, farms, workshops, and landlords, temporary workarounds can create extra risks. They can also make it harder to prove that the electrical system has been managed properly if something goes wrong.
What an emergency electrician will check
An emergency electrician will usually start by making the situation safe, then narrow down the cause of the failure. The aim is not just to get the power back on, but to confirm that it is safe to use.
Depending on the situation, checks may include the consumer unit, RCDs, circuit breakers, main switch, earthing, bonding, affected circuits, sockets, lighting, outdoor supplies, appliances, and visible wiring.
Testing may be needed to find faults that cannot be seen. This could include insulation resistance testing, continuity testing, polarity checks, and RCD testing. In simple terms, these checks help confirm whether cables, protective devices, and circuits are working safely.
JPEC Electrical can assess, test, repair, and advise on emergency electrical issues for domestic, commercial, industrial, and agricultural properties across Horley, Reigate, Redhill, Crawley, Surrey, and West Sussex.
Will the power be restored straight away?
Sometimes power can be restored quickly, especially if the fault is simple and the affected circuit can be made safe. In other cases, parts may need replacing, damaged wiring may need repair, or a circuit may need to remain isolated until further work is completed.
A good electrician should be clear about what has been restored, what remains isolated, and what further work is needed. This matters because restoring power without dealing with the cause can leave the same fault waiting to happen again.
For example, if an outdoor socket has water inside it, the immediate step may be to isolate that circuit so the rest of the property can be used safely. The permanent repair may involve replacing the socket, improving weather protection, or checking the cable route.
What if only part of the property has power?
Partial power loss can be more serious than a straightforward total power cut. If some lights or sockets work while others do not, the issue may be with a circuit, consumer unit, supply phase, loose connection, or local network fault.
In a three-phase commercial or industrial supply, one phase can fail while others continue working. Three-phase means the property has a larger electrical supply split across three live conductors, often used for higher-demand sites. Losing one phase can affect machinery, heating, refrigeration, pumps, and other important equipment.
If lights are flickering, unusually dim, or bright, turn off sensitive equipment and seek professional advice. These symptoms can sometimes point to supply or connection issues that need urgent attention.
Advice for landlords and property managers
Landlords have a duty to keep electrical installations safe. If a tenant reports power failure, repeated tripping, burning smells, or damaged electrical accessories, it should be taken seriously.
A quick reset may not be enough, especially if the fault returns. You may need a qualified electrician to inspect the issue, make the property safe, and provide suitable records of the work completed.
For rented homes, HMOs, shops, offices, and mixed-use properties in areas such as Redhill, Reigate, Horley, and Crawley, it is sensible to keep records of inspections, repairs, and Electrical Installation Condition Reports. An Electrical Installation Condition Report, or EICR, is a formal check of the fixed wiring and consumer unit.
JPEC Electrical can support landlords and property managers with emergency callouts, fault finding, repair work, testing, and follow-up recommendations.
Advice for businesses, industrial sites, and farms
For businesses, power failure is not just inconvenient. It can stop trading, affect staff safety, damage stock, interrupt production, or cause problems with security, lighting, refrigeration, heating, or access systems.
Industrial and agricultural sites can have additional risks because electrical systems may be exposed to dust, moisture, vibration, heavy equipment, outdoor conditions, and higher loads. A small fault can quickly become disruptive if it affects pumps, ventilation, processing equipment, workshops, or cold storage.
The best approach is to have clear procedures in place before a fault happens. Staff should know where the main electrical intake is, which equipment is critical, who to contact, and what should be switched off safely.
JPEC Electrical are experienced local electrical specialists who can assess business-critical systems, identify weak points, carry out repairs, and advise on practical improvements that reduce downtime.
How to reduce the risk of future power failures
Not every power failure can be prevented, especially when the issue is with the local electricity network. However, many internal faults can be reduced with good maintenance, proper installation, and timely upgrades.
Useful steps include:
- Arrange periodic electrical inspection and testing
- Replace damaged sockets, switches, and accessories promptly
- Avoid overloading extension leads
- Keep outdoor electrics weatherproof and correctly installed
- Investigate repeated tripping rather than ignoring it
- Upgrade outdated consumer units where appropriate
- Make sure business-critical equipment has suitable electrical capacity
- Consider backup power for essential systems where downtime would be costly
Backup power may include battery storage, generators, or uninterruptible power supplies, depending on the property and what needs to keep running. These systems need proper design so they work safely with the existing electrical installation.
Should you upgrade your electrics after a power failure?
A power failure does not automatically mean you need a full electrical upgrade. Sometimes the answer is a simple repair. However, if the fault reveals old wiring, overloaded circuits, poor outdoor electrics, or an outdated fuse board, an upgrade may be worth considering.
The right recommendation depends on the condition of the installation, the way you use the property, and your future plans. For example, a business adding more equipment may need extra circuits. A landlord may need remedial work after an EICR. A homeowner may need better protection before adding new heating, garden power, or renewable energy equipment.
JPEC Electrical can assess, design, install, test, commission, and advise properly. That means you get a realistic explanation of the trade-offs, safety considerations, disruption, and expected performance before committing to work.
JPEC Electrical can help
If your power has failed, JPEC Electrical can provide calm, practical emergency electrician support across Horley, Reigate, Redhill, Crawley, Surrey, West Sussex, and the surrounding areas. The team can investigate faults, make systems safe, carry out repairs, and advise on longer-term improvements where needed.
JPEC Electrical work with homeowners, landlords, commercial premises, industrial sites, and agricultural clients. They can help with fault finding, testing, inspection, electrical upgrades, emergency response, installation work, and renewable energy systems where appropriate.
This article is general information only and is not personal advice. Recommendations should always be confirmed through a proper survey, inspection, or system design for the individual property and requirements.
