Best Dual Fuel Energy Deals in the UK – 2025

Looking for the best dual fuel energy deals UK 2025? EnergyPlus makes it easy to compare gas and electricity tariffs together, find the cheapest combined energy plans, and switch suppliers in just minutes.

What is a Dual Fuel Tariff?

A dual fuel tariff is when your gas and electricity come from the same supplier, usually under one contract and one monthly bill. This type of tariff is popular because it offers:

  • Convenience — one bill, one supplier contact.
  • Discounts — suppliers often offer lower rates for dual fuel customers.
  • Simplified switching — compare and change both fuels at once.

Benefits of Choosing a Dual Fuel Deal

Advantages

  • Potential savings compared to separate contracts.
  • Single direct debit makes budgeting easier.
  • Exclusive tariffs only available to dual fuel customers.

Things to Watch Out For

  • Dual fuel isn’t always the cheapest — compare separately too.
  • Exit fees may apply if you leave a fixed deal early.
  • Some plans may require a smart meter installation.

Average Dual Fuel Costs in 2025

According to Ofgem, the average UK household on a dual fuel tariff pays around £1,720 per year (July–September 2025, direct debit). However, the cheapest deals on the market are often hundreds of pounds below the price cap, making comparison an essential step if you want to save.

Best Dual Fuel Tariffs: What to Look For

  1. Unit rate (pence per kWh) — lower rates = cheaper energy usage.
  2. Standing charges — daily fixed fees that can add up.
  3. Contract type — fixed vs variable tariffs depending on your risk tolerance.
  4. Exit fees — check before switching mid-contract.
  5. Green energy options — some dual fuel plans include renewable electricity.
  6. Payment method — direct debit usually saves compared to pay on receipt or prepayment.

How to Compare Dual Fuel Deals

To make sure you get the best dual fuel energy deal in 2025:

  • Enter your postcode into our comparison tool.
  • Provide your recent usage (from your latest bill) for accurate quotes.
  • Check the tariff details — including exit fees and smart meter requirements.
  • Switch online in under 5 minutes — no paperwork, no supply interruption.

Frequently Asked Questions

Is dual fuel cheaper than separate tariffs?

Often yes, but not always. Some households may save more by picking different suppliers for gas and electricity. Always compare both options before switching.

How long does it take to switch to a dual fuel deal?

Switching usually takes 5–7 working days. Your supply won’t be interrupted, and your new supplier will handle the entire process.

Can I switch to dual fuel if I’m on prepayment?

Yes. Many suppliers offer dual fuel prepayment tariffs, though rates may be higher than for direct debit customers.

Do dual fuel tariffs include renewable energy?

Increasingly, yes. Many UK suppliers now provide 100% renewable electricity as standard on their dual fuel plans.

Start Comparing Dual Fuel Deals Today

Don’t pay more than you need to. Enter your postcode below and discover the best dual fuel tariffs available in your area today.

Compare Dual Fuel Deals

Disclaimer: Prices are subject to change. Always confirm latest tariffs with suppliers before switching.