Dual fuel tariffs – secure the best energy deals
Are you ready to cut your energy costs? Switch to British Gas dual fuel and see how much you could save.
Updated on 5th August 2025 by:
Simon Wood, Head of Energy Pricing & Costing
In this guide
What is a dual fuel energy tariff?
If you use both electricity and gas in your home, you can combine these to get one energy bill by choosing a dual fuel tariff. Dual fuel simply means you get your gas and electricity from the same energy supplier. If you receive an electricity bill from one supplier and your gas bill from a different supplier, then you are not on a dual fuel tariff.
Dual fuel tariffs are very popular. By getting all your energy from one supplier you’ll only need to deal with one bill, one monthly or quarterly payment and one point of contact.
What are the benefits of switching to a dual fuel tariff?
Changing to a dual fuel tariff can be a much more convenient way to see how much gas and electricity you’re using and what your total bill is each month, helping you to budget more easily.
Manage your energy in one place
A dual fuel tariff makes it’s quicker and easier to manage your energy account as everything is in one place and any queries can be sorted by one contact.
See your total energy usage at a glance
Most energy companies will send you a combined gas and electricity bill, that shows your total usage and costs, which may help you to keep track and even save energy.
Save on energy bills
By getting both your gas and electricity from the same supplier, you may be able to access exclusive discounts and lower rates compared to managing them separately.
Are dual fuel tariffs the best deal?
Whilst dual fuel is more convenient, it’s not always the cheapest option. The key is to compare all the tariffs available on the energy market and find the right one for you. Remember, the price you pay is largely dependent on where you live and how much energy you use. So how can you get the best deal?
Ask your current suppliers about dual fuel
It’s easy to switch to a dual fuel tariff – contact your individual electricity and gas providers to see what deals they can offer you.
Compare best dual fuel deals
Most energy suppliers offer dual fuel tariffs. Be sure to shop around and compare prices with other providers. You don’t have to switch to one of your current suppliers if you don’t want to. You can switch one or both of your fuels to a new provider to get the best dual fuel deal.
Our expert says
Dual fuel tariffs offer great value for customers looking for both convenience and cost-effectiveness. With everything in one place, it’s easier to manage your usage and stay on top of your bills.
What dual fuel tariffs are available?
Compare our best dual fuel tariffs and secure the right deal for your home, quickly and easily.
What is the average dual fuel bill in the UK?
According to Ofgem’s July 2025 price cap update1, the average household paying by Direct Debit for dual fuel is expected to pay around £1,720 per year.
While that’s 10% higher (£152 more) than the price cap set for the same period the previous year, it's still 28% lower than the start of 2023, when energy prices were at their peak during the crisis.
How to compare the best dual fuel tariff deals
Have a recent bill to hand from your current gas and electricity providers. Then use supplier or comparison websites to find the best dual fuel tariff deals based on your consumption and preferences. And before you start, take a look at our How to compare energy suppliers guide.
Fixed or variable tariffs
Do you want peace of mind knowing you won’t be affected by rising wholesale prices? Read our fixed versus variable tariffs guide to help you decide.
Energy management
It’s quicker and more convenient and an online only tariff could be cheaper.
Payment plans
You could save money if you pay by monthly Direct Debit.
Exit fees
If you have a fixed-rate dual fuel tariff but want to switch to another supplier before your deal ends you may have to pay an exit fee for leaving early. Check your terms and conditions to see if they apply.
Looking for lower dual fuel energy bills?
See what you could save by switching to British Gas dual fuel. Get a quote online in minutes. Just have a recent bill and your current tariff details handy.
How can I get cheaper energy bills?
The rising cost of living and wholesale energy prices means it’s more important than ever to save energy where you can. Just making a few tweaks to your everyday energy habits can make a big difference. If you’re using less, you’re spending less. And you’ll be doing your bit to reduce greenhouse gas emissions.
Check out our Energy Saving Tips guide. It’s packed full of smart ideas to help you use less energy and save on bills.
Want to know more?
Additional information
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Based on Ofgem's changes to energy price cap announcement between 1st July to 30th September 2025: Ofgem's changes to energy price cap announcement