The lights have gone out, the heating has stopped and your first instinct may be to check the consumer unit. While that's a sensible starting point, it's equally important to determine whether you're dealing with a local power cut or an electrical fault inside your property.
Knowing the difference helps you respond safely, avoid unnecessary risks and contact the right service without delay.
If your checks suggest the fault is within your property's electrical installation, it's important to have it assessed by a qualified electrician. Maintracts provides a 24/7 emergency electrical service across London. Call 020 8682 2244 or email info@maintracts.co.uk for immediate assistance from our experienced electrical team.
Is It A Power Cut Or An Electrical Emergency?
One of the most common assumptions our electricians encounter is that every loss of power is an electrical emergency. Equally, some homeowners dismiss early warning signs as "just another power cut" when the problem actually lies within their own electrical system.
Your first priority is identifying where the fault is likely to be.
| Wider Power Cut | Electrical Emergency |
| Neighbouring properties are also without electricity. | Only your property has lost power. |
| Street lighting may also be affected. | Burning smells, sparks or scorching are present. |
| Electricity network issue. | Fault within your property's electrical installation. |
| Contact 105. | Contact an emergency electrician. |
One of the biggest mistakes homeowners make is assuming every loss of power has the same cause. The first few minutes should be spent identifying whether the issue lies within your property or the wider electricity network, as this determines both the safest response and who you should contact.
Safe Checks Before You Call For Help
Before calling anyone, there are a few simple checks that can help establish whether you're experiencing a local power cut or an electrical fault within your home.
Check Whether Nearby Properties Are Affected
If neighbouring homes and nearby street lights are also without electricity, the issue is likely to be a wider network outage rather than a fault inside your property.
Look At Your Consumer Unit
If your neighbours still have power, check whether a circuit breaker or RCD has tripped.
A tripped RCD or circuit breaker doesn't necessarily mean the consumer unit is faulty. These protective devices automatically disconnect the electricity supply when they detect an unsafe electrical condition, helping reduce the risk of electric shock and fire.
If a breaker has tripped, you can reset it once. However, if it immediately trips again, avoid repeatedly switching it back on, as the underlying fault still needs to be identified.
Disconnect Recently Used Appliances
Faulty high-load appliances, such as kettles and portable heaters, can sometimes cause circuits to trip.
Unplug any appliances that were being used immediately before the power went off, reset the affected breaker once and check whether power is restored. If the breaker continues to trip after the appliances have been disconnected, the fault is more likely to lie within the property's electrical installation and should be investigated professionally.
Who Should You Call During A Power Cut?
Not every loss of electricity requires an electrician.
If the outage affects multiple properties or appears to involve the local electricity network, contact 105. This free national service connects you directly to the Distribution Network Operator (DNO) responsible for maintaining the electricity supply to your area. They can confirm whether there's a local outage and provide restoration updates.
Remember, 105 connects you to your local electricity network operator—not your electricity supplier—as they're responsible for restoring network power.
If the fault appears to be isolated to your property, or you notice signs that suggest an electrical fault rather than a network issue, it's time to contact a qualified emergency electrician instead.
When Does A Power Cut Become An Electrical Emergency?
A power cut isn't always an emergency, but certain warning signs indicate a fault that requires immediate professional attention.
Arrange immediate assistance if you notice:
- a burning smell coming from sockets, switches or the consumer unit;
- scorch marks or discolouration around electrical accessories;
- buzzing sounds, sparking or visible arcing;
- exposed or damaged wiring;
- water entering electrical fittings or the consumer unit; or
- repeated loss of power that can't be explained by a local network outage.
If any of these signs are present, avoid using the affected circuit or attempting further troubleshooting. The priority is to isolate the risk safely and arrange a professional inspection.
Staying Safe Until Power Is Restored
While waiting for power to return or for an electrician to arrive, follow these simple safety precautions.
Do
- Use battery-powered torches rather than candles wherever possible.
- Unplug sensitive electrical equipment, such as computers and televisions, to reduce the risk of damage from power surges when the electricity returns.
- Leave one light switched on to indicate when power returns.
- Keep your refrigerator and freezer doors closed to help preserve food for longer during an outage.
Don't
- Continue resetting a circuit breaker that repeatedly trips.
- Touch exposed wiring or damaged electrical equipment.
- Use electrical equipment that's been affected by water until it has been professionally inspected.
- Approach or touch fallen power lines under any circumstances. Stay well clear and report them immediately by calling 105 or the emergency services if there's an immediate danger to the public.
Don't Just Restore The Power—Identify The Cause
Whether the issue is a local power cut or a fault within your home, understanding the cause is the safest way to respond. Acting quickly is important, but acting on the right information is even more valuable.
If the signs point to an internal electrical fault, don't rely on temporary fixes or guesswork. A professional assessment ensures the problem is diagnosed correctly, helping restore your electrical system safely and reducing the risk of further disruption.
If you need urgent assistance, Maintracts' 24/7 emergency electricians are available across London. Call 020 8682 2244 or email info@maintracts.co.uk for prompt professional assistance.
Frequently Asked Questions
Can a power cut trip my consumer unit?
Not usually. A wider power cut and a tripped consumer unit are often separate issues. If your neighbours still have electricity but your RCD or circuit breaker has tripped, the fault is more likely to be within your property's electrical installation.
Who fixes a power cut outside my property?
Local power cuts are managed by your Distribution Network Operator. Call 105 to be connected.
Why does my RCD keep tripping after I reset it?
Repeated tripping usually indicates an underlying electrical fault or a faulty appliance. Avoid continually resetting the RCD and arrange a professional inspection to identify the cause safely.
When should I call an emergency electrician instead of 105?
If only your property has lost power or you notice burning smells, sparks, exposed wiring or repeated tripping, contact an emergency electrician rather than reporting a network power cut.
