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Greener EnergyWith firmus energy, your CO2
emissions are 30% less than that
of oil customers*.
Natural Gas BenefitsNatural gas is not only the
cleanest, but one of the most
efficient ways to heat your home!
Energy EfficiencyUpgrade your home heating with a high energy efficient natural gas system helping you save money and reduce your energy usage.
Track Your UsageYou can track and compare your energy usage. Your energy bills are always available to view 24/7 through your online account.
Thank you for visiting firmus energy. We have listed some of your top questions below. You can find our full customer queries in the help & advice section.
firmus energy has chosen Air Ambulance NI as its nominated ‘Charity of the Year’. Over the next year the company will run a series of corporate and staff events to raise vital funds for the Helicopter Emergency Medical Services (HEMS) charity.
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This is the number usually at the top right of your bill †
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
