Help & Advice Tip: My Pay-As-You-Go Top-Up meter is not working! I have no heating. My meter has error codes. Please Help!

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Why Choose Us?

Here are just some of the things that make us different and a few reasons why we think you should trust firmus energy to supply your energy needs:

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Why firmus energy?

We are the natural gas people. firmus energy provides safe, cheaper, practical and environmentally-friendly natural gas to homes and businesses in Northern Ireland.

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Protecting Northern Ireland’s environment

We love protecting Northern Ireland’s environment. firmus energy natural gas has displaced over 1million tonnes in carbon emissions. In lay man’s terms that’s the same as taking 40,000 cars off the road.

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Building the firmus energy network

We have been building out our natural gas network since 2006 and in that time have laid approximately 1,530km of gas mains to bring a safe, affordable home heating alternative. That’s like travelling from our Antrim offices to Berlin as the crow flies

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We take responsibility

At firmus we regularly test ourselves to make sure we are leading by example with our ethics and values. CORE, an accredited corporate responsibility accolade is our 'prefect' badge for doing good business. 

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Switch to firmus energy

With over 111,000 homes and businesses already with firmus energy and a customer satisfaction rate of over 98% you will be in good company when you make the switch. Call us on our Freephone number 0330 024 9000. 

Expert Advice

Our team of energy advisors are always on-hand to help you manage your energy needs.

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Local Base, World Scale

firmus energy is part of Equitix. Equitix is a leading investor, developer and long-term fund manager of core infrastructure and energy-efficiency assets in the UK.

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What kind of business are you?

Why am I having to do this?

To give you the most accurate information for your town and county, please enter your postcode below.

How do you pay for your natural gas?

By Credit

Do you receive a monthly bill for your energy usage?


With a Pay as You Go card

Do you purchase a top-up card for your energy?


What kind of business are you?

Small or Medium Business

Small businesses spend about £2,600 or less per bill. Medium businesses spend about £35,000 or less per bill.


Large Business

Large businesses spend about £250,000 or less per bill

Make sure you have your bank details and SMP or meter serial number ready

Bank details

All we need is your account number and sort code *


SMP Number

This is the number usually at the top right of your bill or on your connection paperwork

Okay, I have them

If your account requires 2 signatures, or you are not the bank account holder, please call us first on 0330 024 9000
If you don’t have this number, call our switch team on 0330 024 9000