How to Contact Your Energy Supplier
Who to call depends on the problem. Gas leaks and power cuts are handled by emergency networks — not by Octopus, British Gas or any other supplier. Billing, meters, top-ups and switching are handled by your supplier.
Smell gas? Call 0800 111 999
The National Gas Emergency Service is free and open 24/7, whoever supplies your gas. In Northern Ireland call 0800 002 001.
Call 0800 111 999Power cut? Call 105
105 is free from any phone and connects you to your local network operator, who repairs power cuts. In Northern Ireland call NIE Networks on 03457 643 643.
Find your network operator by postcode →Not sure who your supplier is?
Electricity: search your postcode at findmysupplier.energy. Gas: call the Meter Number Helpline on 0870 608 1524. Your supplier’s name is also on any bill.
Reconnection & prepayment
Use the emergency or friendly credit on your meter first, then contact your supplier and ask for support. Citizens Advice can help on 0808 223 1133.
Official supplier websites
Use your supplier’s own website or app for billing, meter readings, top-ups and account questions — their current phone numbers and opening hours are listed there.
- Octopus EnergyOur reviewWebsite
- British GasOur reviewWebsite
- E.ON NextOur reviewWebsite
- OVO EnergyOur reviewWebsite
- EDFOur reviewWebsite
- ScottishPowerOur reviewWebsite
- Good EnergyOur reviewWebsite
- UtilitaOur reviewWebsite
Complaints
Complain to your supplier first. If it isn’t resolved within 8 weeks, contact the Energy Ombudsman free on 0330 440 1624.
Frequently asked questions
Who do I call about a gas leak — Octopus, British Gas or my own supplier?
None of them. Whoever your supplier is, call the National Gas Emergency Service free on 0800 111 999 (Northern Ireland: 0800 002 001). It is open 24/7. Leave the property, don’t use switches or flames, and turn off the gas at the meter if it is safe.
Who do I call in a power cut?
Call 105 free from any phone in Great Britain. It connects you to the network operator that runs the cables in your area — not your supplier — and they fix power cuts. In Northern Ireland call NIE Networks on 03457 643 643.
How do I find out who my energy supplier is?
Check a recent bill or email. For electricity, use the Find My Supplier service at findmysupplier.energy with your postcode. For gas, call the Meter Number Helpline on 0870 608 1524.
My prepayment meter has run out — how do I get reconnected?
First use emergency or friendly credit on the meter. If you can’t top up, contact your supplier straight away and ask about extra support or emergency credit; Citizens Advice (0808 223 1133) can also help. If your supply was disconnected over debt, your supplier should reconnect you quickly once you pay or agree a repayment plan.
How do I complain about my energy supplier?
Complain to the supplier first and ask for a reference number. If it isn’t resolved within 8 weeks, or they send a "deadlock" letter, you can take it to the Energy Ombudsman free of charge on 0330 440 1624.