What to do if…
you see water or condensation inside an outdoor electrical box or near your meter
Short answer
Treat the area as potentially live: stay well away, keep other people and pets away, and report it as a possible electrical hazard. In England, Scotland or Wales call 105; in Northern Ireland call NIE Networks on 03457 643643.
Do not do these things
- Do not open covers further, poke inside, or try to dry it with cloths, heaters, hairdryers, sprays, or paper towels.
- Do not touch the meter, service head, cables, seals, cut-out, fuses, or any metalwork around the box.
- Do not stand on wet ground while reaching towards the box or nearby pipework, gates, fixings, or walls.
- Do not assume it is safe because the power is still on or because it looks like “only condensation”.
- Do not keep going back to check it at close range.
- Do not let children or pets near the area while you decide what to do.
What to do now
- Move yourself, other people, and pets well away from the meter box or outdoor electrical box. Close a door or gate, or place a visible barrier away from the box, if you can do that without going close to the equipment.
- Look only from a safe distance. If there is smoke, fire, sparking, crackling, a burning smell, or you think there is an immediate risk to anyone, call 999 and say there may be an electrical hazard near the meter.
- Report the water or condensation at the meter area:
- In England, Scotland or Wales, call 105 and say: “There is water or condensation inside an outdoor electrical box or near the electricity meter after rain.”
- In Northern Ireland, call NIE Networks on 03457 643643 and give the same message.
- If your indoor consumer unit is in a dry place and you can reach it without touching wet surfaces, switch off the main switch. Do not do this if the consumer unit area is damp, if you would need to reach past wet surfaces, or if you are unsure.
- If you can see rainwater running onto the box from a gutter, roof edge, pipe, or overflow, only move the source of runoff if you can do it from a safe distance without touching the box, cables, fixings, or wet metalwork. Otherwise leave it for the responder.
- Take one photo or short video from a safe distance if you can do that without moving closer. Use it when speaking to the network operator, landlord, managing agent, electrician, or insurer.
- If you rent, or the box is in a shared or communal area, tell the landlord, managing agent, housing provider, or building owner that you have reported a possible electrical hazard near the meter.
What can wait
- You do not need to decide now whether the meter box, meter, service head, cable entry, seal, wall, gutter, or building fabric is the cause.
- You do not need to decide now who is responsible for the repair.
- You do not need to book permanent repairs until the immediate electrical risk has been reported and you know the area is safe to approach.
- You do not need to keep checking the box closely while waiting for advice.
Important reassurance
You are not overreacting by treating water near electrical equipment as hazardous. The safest first response is to step back, stop people touching it, and report it, rather than trying to inspect or fix it yourself.
Scope note
These are first steps to reduce shock and fire risk and get the right safety advice. Later, you may need a qualified electrician, your electricity supplier, your network operator, a landlord or managing agent, and building repairs to deal with the cause of the water ingress.
Important note
This is general safety information, not professional electrical, legal, insurance, landlord, or property advice. Do not attempt DIY work on or near the meter, service head, cut-out, cables, seals, or other electricity network equipment.
Additional Resources
About this guide
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