firmus energy Supply, one of Northern Ireland’s largest suppliers of natural gas, has announced that it will be making a reduction of 8.5% to its tariffs for all domestic customers in the Greater Belfast Network area.
This decrease, which is effective from 1st November 2025, will save households an average of £107 per year
Announcing this reduction, Ryan Miskimmin, Sales Director at firmus energy Supply said:
“firmus energy Supply is committed to passing on savings to customers, whenever possible to do so, and we are delighted to be able to make this announcement today. This reduction will put money back into the pockets of thousands of customers.
“As we head into the colder months, we know that these significant savings coupled with the constant heat and instant hot water that natural gas provides, will be welcomed by customers in the Greater Belfast Network area.”
This tariff announcement applies to all domestic customers and all commercial customers who use less than 73,200kWh in the Greater Belfast Network.
Earlier this month, firmus energy Supply announced a 7.86% tariff reduction for the Ten Towns Network area which will come into effect on 1st October.
Customers seeking to switch to firmus energy Supply for their natural gas, or to get advice on their bills or direct debit payments should contact the Customer Services team on 0330 024 9000 or via furtherinfo@firmusenergy.co.uk . For free and independent advice on how to save energy please contact NI Energy Advice Line on 0800 111 4455.
