Energy suppliers and networks
Octopus Energy phone numbers
Edited by Richard BarkerChecked 13 October 2026
Octopus Energy publishes 3 numbers for you to call on its own website. We list each one with the page it is on (1 page in all), a short quote from that page and the date we checked it.
Numbers to call Octopus Energy
What each line is for, as Octopus Energy describes it, with opening hours where it gives them.
- 0808 164 1088
You call them on this number
Customer service (free from UK mobiles and landlines)
Source: “for all UK mobiles and landlines 0808 164 1088” (opens in a new tab). Checked 13 October 2026.
- 020 3389 5613
You call them on this number
Small business customers
Source: “days/week business@octopus.energy Call us Call us 020 3389 5613” (opens in a new tab). Checked 13 October 2026.
- 0808 196 6842
You call them on this number
Heat pump support
Source: “octo.ps/heat-pump Call us on: 0808 196 6842” (opens in a new tab). Checked 13 October 2026.
How scams that copy energy suppliers and networks work
UK Finance says criminals pose as organisations such as utility companies, claiming you must settle a fine, pay a bill or return a refund paid by mistake. Ofgem warns that scammers may contact you by phone, text, email, social media or at your door, pretending to be from Ofgem or an energy company.
This could still be a scam call
Criminals can make their number look like a genuine one (this is called spoofing). If someone calls from this number and asks for money, bank details, a code or passwords, hang up. Then call Octopus Energy back on a number you've found yourself, such as the one on their own website or on a letter or bill from them.
Safe ways to check
- Octopus Energy's own contact page (opens in a new tab): Where this number is published.
- Report Fraud (opens in a new tab): Report fraud and cyber crime in England, Wales and Northern Ireland. In Scotland, call Police Scotland on 101.
- Forward scam texts to 7726 (opens in a new tab): It is free, and reports the message to your mobile provider.
- How number spoofing works: Why a genuine number on your screen does not prove who is calling.
Questions about Octopus Energy’s numbers
What numbers can I call Octopus Energy on?
Octopus Energy publishes 3 numbers for the public to call. They are: 0808 164 1088 (Customer service (free from UK mobiles and landlines)); 020 3389 5613 (Small business customers); 0808 196 6842 (Heat pump support). Check the source page for each one before you call, as numbers and opening hours change.
Does Octopus Energy publish a number on its own website that is not listed here? Suggest a number for Octopus Energy.
Sources and checks
This page relies on:
Checked on 13 October 2026. Read how we build the directory. How we check our information. Spotted a mistake? Tell us and we will put it right.