Digital channels
- Email: [email protected]
- Account: My Account portal
Customer service
Contact E.ON Next
Every way to reach E.ON Next customer service in the UK — general enquiries, prepayment, gas emergency, HomeCare, complaints, Welsh service, Relay UK textphone and the Energy Ombudsman complaint route.
At a glance
The E.ON Next numbers that matter most
Online portal
My Account
https://www.eonnext.com/login
For a suspected gas leak or carbon-monoxide release, call the National Gas Emergency line on 0808 501 5088 immediately — free, 24/7, covers every UK gas supplier. Leave the property, do not switch on lights or use any electrical appliance.
Every line you might need
E.ON Next phone directory
Different queries route to different teams. Use the directory below to dial the right line first time and skip the in-line transfer.
| Department | Number |
|---|---|
| General enquiries | 0808 501 5200 |
| Business switching | 0808 501 5699 |
| Gas emergency — National Gas Emergency line (free) | 0808 501 5088 |
| Power cut — local network operator | 105 |
In writing
Email, contact form & postal address
Complaint not resolved?
Escalate free to the Energy Ombudsman
If E.ON Next has not resolved your complaint within 8 weeks, or has issued a deadlock letter sooner, you can take it free of charge to the Energy Ombudsman — the independent ADR scheme approved by Ofgem.
The Ombudsman's decision is binding on E.ON Next. Using it does not affect your right to take court action separately. Have your account number, complaint reference and key dates ready before you file.
Social channels
Reach E.ON Next on social media
Social channels are useful for service updates, simple questions and outage alerts. For anything involving sensitive personal data (bills, payments, debt), use the phone line or the secure online account.
Common questions
Contacting E.ON Next — frequently asked questions
You can reach E.ON Next customer service on 0808 501 5200, Mon-Thu 9 a.m. to 5 p.m.; Fri 9 a.m. to 4 p.m.. For a faster response outside hours, use the online account, the contact form, or the mobile app where available.
For life-threatening emergencies always call 999. For a gas leak, suspected carbon-monoxide release or damaged gas pipe, call the National Gas Emergency line on 0800 111 999 — free, 24/7, and covers every gas supplier in Great Britain (not just E.ON Next). For a power cut, dial 105 to reach your local electricity network operator.
Yes — email E.ON Next at [email protected]. Include your account number, supply postcode and a clear description of the issue so the team can route the message quickly.
First, raise the issue directly with E.ON Next — by phone, email, contact form or online account. Keep written records of every notice and reply. If the complaint is not resolved within 8 weeks, or you receive a deadlock letter sooner, you can escalate it free of charge to the Energy Ombudsman, the independent ADR scheme approved by Ofgem. The Ombudsman's decision is binding on E.ON Next.
E.ON Next does not currently advertise a public live-chat option for residential customers. Use the online account, mobile app or contact form for written enquiries, or the phone line for anything urgent.