Continued increases in world gas prices lead to tariff rise for Ten Towns Network area Find out more

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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£200 Cashback Offer

£200 Cashback

Sign up for offer

Register your interest now and we will contact you as soon as possible or alternatively call our Customer Enquiry Line on 0330 024 9000

£200 Cashback

£200 Cashback Offer

Enjoy £200 cashback to spend as you please when you make the switch from oil to natural gas this spring. With over 100,000 firmus energy customers across the Northern Ireland you will be in good company.

Register your interest and sign up for a gas meter installation by the end of December 2021 to claim your cashback. 
To claim your cashback send a copy of your installer invoice into after you have made the switch. You may also post your invoice to Customer Services, firmus energy, A4 – A5 Fergusons Way, Antrim, BT41 4LZ, Northern Ireland.

All terms and conditions can be found here.


‘’ Happy with the whole gas install. Best thing I ever did.’’ Suzanne, L’Derry

‘’ Very happy with it, big improvement from oil boiler.’’ Jason, Banbridge


Visit our YouTube Page - '7 Steps to Switching to Natural Gas' 

This offer is open to firmus energy network customers only.

One offer per connection.


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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