you can connect?
Please select your town from the dropdown below.
Please select your town from the dropdown below.
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.
Sunday saw the return of the ever-popular Firmus Energy City of Derry Triathlon. With heavy rain from early in the morning, 340 competitors took to the River Foyle to complete a 750m swim in open water, 20km closed road cycle and a 5km flat run which takes in key attractions around the City including the Peace Bridge.
Read More
Get the latest news, tips and energy advice delivered directly to your inbox!
All we need is your account number and sort code *
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 0800 032 4567
† If you don’t have this number, call our switch team on 0800 032 4567
