What is this?
When your neighbours have power but you do not, the problem is specific to your property. This rules out an area power cut and points to either your supply connection, your main fuse, or your consumer unit.
Common causes
- Main fuse (cut-out fuse) has blown
- Meter isolation switch turned off accidentally
- Main switch in consumer unit has tripped
- Fault on the service cable between the street and your property
- Prepayment meter has run out of credit
Is it dangerous?
The situation itself is not dangerous, but do not attempt to access or repair the main fuse — it belongs to the DNO and contains a high-rupture fuse. If the problem is in your consumer unit, it may indicate a serious fault.
Can I fix it myself?
Check your prepayment meter has credit. Check the main switch and RCDs in your consumer unit and try resetting if tripped. Check that the meter isolation switch (if you have one) has not been turned off. Do not touch the main fuse — it is sealed for a reason.
When to call an electrician
Call an electrician if your consumer unit appears fine but you still have no power, or if the main switch will not stay on. If you suspect the main fuse has blown, contact your DNO — they will replace it for free.
What will an electrician do?
Test the incoming supply at the meter
Check the consumer unit main switch and all protective devices
Test the installation for faults if the main switch keeps tripping
Contact the DNO on your behalf if the fault is supply-side
Repair any faults found in your installation
Typical cost
£80 – £200
If the problem is a blown main fuse, the DNO replaces it for free. Electrician costs apply for faults within your installation.
