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Official First Utility phone numbers

Please be aware of unofficial First Utility contact numbers that may charge you a premium rate

We’ve found out that a number of companies have created premium rate numbers that connect to First Utility and are advertising these numbers as our contact details. Using these numbers will get you through to us (these companies simply divert the calls) but you’ll unfortunately incur a hefty charge.

Unfortunately this practice is legal and means customers using these numbers have received costly phone bills. These are not our numbers, we don’t condone this practice and we’ll never promote them. We’re doing what we can to tackle this issue but please be aware.


If you do wish to contact us, please use our official First Utility contact number:


First Utility Customer Services: 01926 320 700


Our opening hours are Monday to Friday 8am to 8pm, and Saturday 9am to 4pm.


Alternatively you can Ask First, our virtual assistant, or email customer.service@first-utility.com.

If Twitter is more your bag, we’re on @FirstUtility. Our friendly Twitter team is available from 8am-6pm, Monday to Friday.

We’ll be happy to hear from you.


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*Customers who registered at first-utility.com to one of our one year fixed term tariffs between 1 October and 31 December 2016 saved an average of £166 when compared to the average Big Six Standard Variable Tariff at the average energy usage for a medium household.
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