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!

Click Here
Select your town (change) We have set your location here.
You can change it at any time by clicking on the link above.

Why Choose Us?

Here at firmus energy we believe in putting our energy into lowering the cost of yours.

Competitive prices

Cheaper fuel isn't the only way you can save money with firmus energy

Expert Advice

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

Image: Core - The standard for repsonsible business accreditation

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. 


We rigorously track market intelligence to provide insight into the current trends of global energy

Image: Mobile phone with firmus contact number

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. 

Image: firmus energy office illustration

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.

Sign up to
our Newsletter

Exclusive offers and latest news straight to your inbox!

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