Compare the Best Dual Fuel Deals

Weigh up dual fuel deals and reduce costs

If you pay for your gas and electricity separately, switching to a dual fuel tariff could save you money. To ensure you find the best dual fuel deals in your area, here’s what to consider before you make the switch.

What is a dual fuel tariff?

A dual fuel tariff is when you buy your gas and electricity from the same energy provider.

Currently, 41 out of 49 active energy firms offer a dual fuel tariff, so working out which are the best dual fuel deals might seem like a daunting task. 

Why switch to a dual fuel tariff?

One of the main benefits of switching to a dual fuel tariff is that they can often mean lower energy prices. This is because energy suppliers will typically discount the cost of gas and electricity if you buy them together. 

Dual fuel tariffs also mean less admin, as you’ll only have one energy supplier to deal with, which can make life a lot easier if you need to make a complaint or resolve an issue. Generally speaking, you’ll know if you’re on a dual fuel tariff because you will only receive one bill for your gas and electricity.

Can you switch to a fixed rate dual fuel tariff?

Dual fuel tariffs are also available as either fixed rate or variable tariffs. 

Fixed rate tariffs are when the price of your gas and electricity stays the same for a set period of time (usually 12 or 24 months). Your bills will still vary depending on your energy usage but, if your energy consumption is consistent, it will make it easier to budget. 

Fixed tariffs are often competitively priced, but the downside is that you’re locked into a contract. If you decide to end your contract early, you’ll usually have to pay an exit fee. 

In contrast, with a variable rate tariff, the unit cost of gas and electricity varies depending on the wholesale price of energy. Variable tariffs are often called standard variable tariffs (SVT), as they’re typically a supplier’s default tariff. 

Variable tariffs often work out more expensive than fixed rate plans. That said, these tariffs do have their benefits. For instance, if the wholesale price of gas and electricity falls, you’ll pay less for your energy. They usually don’t charge exit fees either, so you can switch at any time without facing penalties.   

What are the average dual fuel prices in the UK?

The latest figures from industry regulator Ofgem reveal that dual fuel tariffs vary considerably — anything from £1,038 per year to £1,084 is normal at the time of writing, but suppliers are able to charge those on variable tariffs up to £1,277. 

What you pay will also depend on whether you choose a fixed rate or variable rate tariff and, of course, how much energy you use. Price is also affected by location, as energy prices also differ by region. Payment method also influences overall cost — for example, monthly Direct Debits usually offer slightly better value, as do accounts managed solely online. 

With all this in mind, the amount you could save by switching to a dual fuel tariff will also vary according to these different factors. 

Which supplier offers the cheapest dual fuel energy deals?

As there are so many variables, the way to find the best dual fuel deals in terms of pricing is to compare energy deals. For an accurate quote, you’ll need to provide some information, all of which can be found on a recent bill:

  • Your postcode
  • Name of the tariff you’re currently on
  • Your current energy supplier
  • Your annual gas and electricity usage 

It’s also well worth comparing as wide a range of energy suppliers as possible and not just the ‘Big Six’, namely: 

  • British Gas
  • EDF
  • E.ON
  • Npower
  • Scottish Power
  • SSE

While it might be tempting to choose a large supplier because they’re tried and tested, it’s  also important to consider smaller energy providers. In a recent survey, Ofgem found that customers of small suppliers were 5% more likely to be satisfied than customers of larger suppliers. Some smaller firms also offer innovative energy solutions, such as 100% green electricity and gas, which you won’t find elsewhere.

How long does it take to switch energy deals? 

Thanks to the energy switch guarantee, which promises to make switching simple and hassle-free, it shouldn’t take longer than 21 days to change provider. In most cases it takes 17 days, but it could take as little as two weeks. 

If you decide to switch, your new supplier will contact your current provider and work with them to organise the handover. You may, however, need to take a meter reading in order to settle your final bill.    

Will your gas and electricity be cut off if you switch?

Switching does not involve any physical changes, so your energy supply won’t be disrupted. Your new energy supplier will let you know when the switch will take place, but you’re unlikely to notice anything different on the day itself. The only change you should see is lower gas and electricity bills.

Are dual fuel energy tariffs always cheaper?

Dual fuel deals are often cheaper, but that doesn’t mean you can’t find competitively priced single fuel energy plans. 

If you prefer to get separate gas and electricity bills, there’s nothing to stop you from comparing individual tariffs for each, either with the same or a different energy supplier.  

What is the energy price cap?

The energy price cap is a limit on the amount energy suppliers can charge you for gas and electricity. The cap applies to default tariffs, such as SVTs, and prepayment tariffs. The aim is to protect customers who have not switched and to ensure they pay a fair price for their energy. 

The energy price cap is set by Ofgem and is reviewed twice a year (once in the spring and again in the winter). As it stands, Ofgem estimates that the cap on energy prices protects a total of 15 million customers either on default tariffs or prepayment deals, and saves them up to £100 per year.

Can I get a smart meter with a dual fuel tariff?

Smart meters monitor your energy usage and send accurate meter readings to your supplier. This will put an end to estimated bills, helping you only pay for the energy you’ve used. The government wants every home and small business to be offered a smart meter by 2025, but it’s down to energy firms to manage the rollout. 

Smart meters aren’t available to all homes as many of them rely on mobile technology to send updates to your provider. If your new supplier is in a position to offer you a smart meter, however, they are obliged to by law. 

If you already have a smart meter from your old supplier, your new provider will check its compatibility with their network. If it’s compatible, you should be able to continue using the same one. If not, your new supplier will replace it if possible. 

What happens if you change your mind about switching? 

There is a 14-day cancellation period starting from the day you agree to switch to a new contract. So, if you change your mind, switching back is simple. If you decide not to go ahead with the switch, just let your new supplier know and they will cancel the process. 

Compare energy providers for the best dual fuel deal

You can start your dual fuel comparison right here. Simply answer a few questions and we’ll do the rest.

Comparing is fast, simple, and completely free. Why not see if you can save money on your gas and electricity bills by switching to a cheaper energy supplier today?