Compare Dual Fuel Energy Deals

Compare dual fuel deals, one supplier, one bill, switch in as little as 5 working days.

Compare Dual Fuel Energy Deals

Q: How much is the average dual fuel bill in 2026?

Under the April-June 2026 Ofgem price cap, a typical UK household on a standard variable dual fuel tariff pays around £1,641 per year. This assumes usage of approximately 2,700 kWh of electricity and 11,500 kWh of gas annually on a Direct Debit payment plan.

Q: Should I fix my dual fuel tariff or stay variable?

As of April 2026, the price cap fell slightly from Q1 but forecasts indicate a meaningful rise from July 2026. If you can secure a fixed dual fuel deal at or below the current cap level, it may offer a smart hedge against rising wholesale prices. Use Switch to compare fixed vs variable rates at your postcode.

Q: Will I pay an exit fee if I switch?

Many fixed dual fuel tariffs carry an exit fee if you leave more than 50 days before the contract end date, typically ranging from £25 to £75 per fuel (£50-£150 total). Switching within 49 days of your end date is usually fee-free. Standard variable tariffs never carry exit fees.

Q: How long does the switch take?

Under the Energy Switch Guarantee, your switch must complete within 5 working days. The process is managed entirely by the incoming supplier. Take a meter reading on the day the switch completes and keep it for your records.

Q: Can I switch if I owe money to my current supplier?

You can generally switch if your debt is less than 28 days old: the balance is added to your final bill. For debts older than 28 days, most suppliers will block the switch until it is cleared. If you are struggling with energy bills, ask Switch about the Warm Home Discount and other support schemes.

Q: Do I need a smart meter for a dual fuel deal?

No, you can switch with a traditional credit meter. However, most new dual fuel tariffs are optimised for smart meters, which eliminate estimated bills and make it easy to monitor usage. If you do not already have a smart meter, your new supplier can usually arrange a free installation.

Compare dual fuel deals, one supplier, one bill, switch in as little as 5 working days.

Compare Dual Fuel Deals

Suppliers We Compare

As well as the big names you know, we help you discover new brands that can offer you more.

Gas & Electricity From One Supplier: Simplified

A dual fuel tariff means you buy your gas and electricity from the same energy supplier. Instead of juggling two separate bills, two sets of login details, and two customer service numbers, everything sits under one roof.

Most UK households already use both gas (for heating and hot water) and electricity (for lighting and appliances). A dual fuel deal simply bundles them together, and if you compare properly, it can be cheaper too.

At Switch, we compare dual fuel tariffs from every major UK supplier (British Gas, EDF, E.ON Next, Scottish Power, Octopus Energy, and more) so you always see the full picture before you decide.

5 Reasons UK Households Choose a Dual Fuel Tariff

Whether you're switching for the first time or comparing your renewal options, dual fuel deals remain the most popular choice for UK homes.

One monthly bill

Covering both your gas and electricity. A single point of contact for all queries and complaints.

Potential dual fuel discount

Many suppliers offer a discount for bundling. Always compare to verify the saving at your specific address.

Easier budgeting

One combined statement each month shows total energy spend. Reduces risk of missed payments.

Smart meter ready

See real-time gas and electricity usage on one dashboard, avoid estimated bills, and spot waste.

Fixed, variable, or green

Filter by tariff type to find the deal matching your priorities and risk appetite.

What the Ofgem Price Cap Means for Your Dual Fuel Bill

£1,641/yr

April to June 2026 cap

For typical dual fuel household on Direct Debit

24.5p

Electricity unit rate

Average per kWh under the cap

6.2p

Gas unit rate

Average per kWh under the cap

July rise

Forecast to increase

Fix now to lock in current rates

The Ofgem price cap limits the unit rates and standing charges that suppliers can charge on default variable tariffs, and it is reviewed every quarter, in January, April, July, and October. Crucially, the cap does not limit your total bill, it only limits the rates: if you use more energy than Ofgem's typical consumption figures, your bill will be higher even if your supplier follows the cap to the letter. Under the current cap, the average electricity standing charge is 54.75p per day and the average gas standing charge is 35.09p per day.

Is a dual fuel tariff always cheaper than separate gas and electricity deals?

The conventional wisdom is that bundling gas and electricity with one supplier saves money through a 'dual fuel discount'. That saving has narrowed considerably in recent years: the cheapest gas-only deal plus the cheapest electricity-only deal can now match or undercut many dual fuel bundles.

The main advantage of dual fuel today is administrative simplicity: one bill, one supplier, one direct debit. For households who value that, bundling is perfectly reasonable. For households prioritising cost, running separate comparisons for gas and electricity and choosing the cheapest each time is likely to produce a marginally lower bill.

Switch shows both options side by side. You can compare dual fuel tariffs and separate single-fuel tariffs simultaneously, with projected annual cost calculated for your exact usage.

Which Dual Fuel Tariff Is Right for You?

If you can find a fixed dual fuel deal at or below £1,641/year at your usage level, it offers a sensible hedge against the predicted July rise.

Tariff Type	How It Works	Best For	Exit Fee?	Recommended?
Fixed Rate	Unit rates locked for 12 to 24 months. Protected from price cap rises.	Budget-conscious households; those expecting prices to rise	Usually yes (50+ days)	Recommended (Apr 2026)
Standard Variable (SVT)	Rates follow Ofgem price cap each quarter.	Flexibility; those expecting prices to fall	No	Default tariff
Tracker	Rates track wholesale market prices in real time.	Savvy switchers monitoring the market	Usually no	Limited availability
Green Dual Fuel	100% renewable electricity + carbon-offset gas.	Eco-conscious households	Varies by supplier	Available now
Prepayment (PPM)	Top up meter in advance. Now on a par with DD rates.	Those without bank accounts or on tight budgets	No	Smart PPM available

← Swipe to see all columns →

How to Switch Your Dual Fuel Deal in 4 Simple Steps

Under the Energy Switch Guarantee, your switch completes within 5 working days. Your new supplier handles the entire process, so you just enjoy lower bills.

Enter Your Details

Pop in your postcode, current supplier, and approximate annual usage. Have a recent bill to hand. It contains your annual kWh figures and current unit rates for an accurate comparison.

Compare Every Tariff

Switch shows you every available dual fuel deal at your address, ranked by total annual cost. Fixed, variable, tracker, and green options are all displayed with exit fees and contract length clearly shown.

Choose Your Deal

Select the tariff that suits your budget and priorities. Pay attention to the contract length, any exit fees, the unit rates, and whether the deal includes a smart meter or green energy component.

We Handle the Switch

Your new supplier manages the entire switching process. Take a meter reading on switchover day. Your old supplier sends a final bill, and if the switch is not completed within 5 working days you are entitled to automatic compensation under the Energy Switch Guarantee.

Dual Fuel Deals: Frequently Asked Questions

Is dual fuel always cheaper than separate suppliers?

Not always but it can be. Many suppliers offer a small dual fuel discount to customers who bundle both fuels. However, the cheapest overall deal at your address may still be two separate single-fuel tariffs. Switch compares both options side by side so you always see the true cheapest outcome.

How much is the average dual fuel bill in 2026?

Should I fix my dual fuel tariff or stay variable?

Will I pay an exit fee if I switch?

How long does the switch take?

Can I switch if I owe money to my current supplier?

Do I need a smart meter for a dual fuel deal?

Ready to Find Your Best Dual Fuel Deal?

Join thousands of UK households who compared with Switch and switched to a cheaper tariff in minutes. Our whole-of-market dual fuel comparison is completely free, fully independent, and takes under 5 minutes.

Compare Energy Deals Now Compare Home Energy Expert Help: 01926 942125

Latest from our experts

Broadband14 min read

500Mbps broadband deals UK August 2026: first-year cash, not the tile

500Mbps broadband deals UK August 2026 ranked by first-year cost. Community Fibre £16 card, Virgin M500, EE Full Fibre 500. Check your postcode.

Mobile19 min read

Cheapest phone deals UK August 2026: A16 from £4.33. The Tab at £1 is not a phone

Cheapest phone deals UK August 2026: Galaxy A16 from £4.33. Ranked 28 Aug. Galaxy Tab at £1 is a tablet. Live cards, not a frozen list.

Broadband21 min read

Cheapest broadband UK August 2026: first-year cash, not the YouView tile

Cheapest broadband UK August 2026: ranked by first-year cost including setup and April rises. Hub YouView cards are TV bundles, not FTTP. Check your postcode.

Mobile21 min read

Cheapest unlimited SIM only UK 2026: iD averages £14. Mozillion at £2 is 1GB

Cheapest unlimited SIM only UK 2026: iD averages £14 over 12 months, rolling from £15. Ranked 28 Aug by total cost. Mozillion at £2 is 1GB, not unlimited.

Broadband19 min read

Cheapest full fibre broadband UK 2026: rank the first year, not the advert

Cheapest full fibre broadband UK 2026: ranked by first-year cost including setup and April rises. Check your postcode. No invented cheapest-from.

Mobile16 min read

100GB SIM only deals UK: the 12-month average is £8.71. Rolling is a different bill

100GB SIM only deals UK, 27 August 2026: Talkmobile 12-month averages £8.71. iD 108GB rolling is £9. Live prices ranked by total cost, not commission.

Energy22 min read

Economy 7 October 2026: the cap is £1,046. That is not cheaper dual fuel

Economy 7 October 2026: Ofgem’s typical bill is £1,046, up 1%. Why it is not cheaper dual fuel, the 42% night test, and when a single-rate tariff wins.

Energy19 min read

Prepay vs Direct Debit 2026: the cap is cheaper on prepay. The market is not

Prepay vs Direct Debit after Ofgem’s October 2026 cap: £1,678 vs £1,723 on the cap, but the cheapest fixes sit on Direct Debit. Should you come off prepay?