E.ON Business contact
All E.ON Business business contact numbers in one place,sales, accounts, complaints, emergency lines and meter-reading routes. Numbers verified for 2026.
In an emergency, do not call E.ON first
For a gas leak or suspected leak, leave the property and call the National Gas Emergency line on 0800 111 999 (free, 24/7). For a power cut, call 105 (free from any UK landline or mobile). These lines cover every supplier.
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All E.ON Business contact numbers
Every public E.ON Business phone line, with opening hours. Numbers in bold are toll-free; the rest are standard UK landline rates.
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