We make switching energy supplier super simple

Enjoy half-price electricity every Sunday1, exclusive offers on smart technology and home services, and the freedom to switch tariffs with no exit fees. With perks like these, switching to British Gas just makes sense.

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Why switch your energy supplier?

Here are the top three reasons customers choose to change their electricity and gas supplier.

Price

Energy prices change regularly with the market. But with us, if our fixed energy prices drop, you can switch to a cheaper fixed tariff from us for free - so there's always a chance to save.

Customer service

Our award-winning customer service is constantly improving - we are proud to have answered 70% of calls in under 60 seconds last year.

Reliability

Many customers choose to switch for more stability. We've supplied UK homes for 200 years, so you can rest assured we're not going anywhere.

Why switch your gas and electric supply to British Gas?

We're Britain's leading energy supplier. And here's why:

  • Our customers can get half-price electricity every Sunday with PeakSave.1
  • We offer competitive energy prices and no exit fees when you switch to another fixed tariff with us.
  • We give you exclusive discounts on home services, smart tech, and more.
  • We are signed up to the Energy Switch Guarantee, making sure switching is safe, fast, and easy
  • We are focused on the future with energy-saving solutions and green initiatives.
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How to switch your energy to British Gas

Step 1

Get a quote on our gas and electricity deals and choose your tariff.

Step 2

We'll arrange a switch date with your current provider, with no disruption to your supply.

Step 3

We'll let you know when your switch is complete and when to send us your first meter reading.

What happens during the energy switching process?

All UK energy suppliers use the same process, so your energy switch should be quick and easy. And once you’ve chosen your new electric and gas supplier, here’s what you’ll need to do.

1. Find a new electric and gas supplier to switch energy

When contacting a new energy supplier:

  • Provide your preferred tariff, address, and payment method
  • Have a recent bill ready for an accurate quote
  • Let them know your preferred switch date

2. Your energy switch is confirmed

Your new electricity and gas supplier will be in touch to confirm your new tariff. 

When you switch your electricity and/or gas provider, you’ll get a 14-day cooling-off period where you can cancel your energy switch without paying any exit fees. You can waive this to switch sooner—usually within 5 working days. You’ll start paying the new supplier once the switch is complete.

3. Your energy switch over date is confirmed

Your new energy supplier will get in touch with your current provider and start your switch.

Remember, you’ll need to pay your old provider for the energy you use (including standing charges) up until the point when your supply is switched.

Your new supplier will let you know when your energy switch date will be.

4. Give your new supplier opening meter readings

Your new energy supplier will ask you for opening meter readings to start your supply. They will give them to your old provider so you can be billed correctly.

Getting more from your energy supplier

Not all energy companies are the same. From lowering bills with half-price electricity to launching a £140m support fund to help customers who need it the most, we're different.

We're here for you with:

  • We have given our customers a total of £2 million and saved 1,646 tonnes of carbon through PeakSave half-price electricity events.
  • We have installed 1.5 million smart meters to help customers track their energy use.
  • Enjoy easy payments and meter readings with our new and improved mobile app.
  • Benefit from extra UK-based customer service advisors and extended call and chat hours, including weekends.
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Tariff choices if I change my energy supplier to British Gas

Compare our tariffs

Shop for a new tariff and see how easy it is to switch to us from your existing provider.

See all our tariffs

Frequently Asked Questions

What do I need to switch my energy to British Gas?

All we need to know to give you a quote is

  • Your postcode
  • Your house number or name
  • Whether you want a quote for single or dual fuel
  • Having a recent energy bill to hand is useful, this mean we can give you a more accurate quote.

Do I need to tell my current energy provider that I'm leaving?

No, we'll take care of that.

How long does it take to switch energy supplier?

Changing your gas and electric supplier can be completed in as little as 3-5 days. You'll also get a 14-day cooling off period where you can cancel your switch without paying exit fees.

How easy is it to switch energy supplier?

We're voluntary members of the Energy Switch Guarantee, so it's simple, fast and easy. 

Is it worth switching energy supplier?

Switching energy suppliers can be worth it, depending on your circumstances. Many households could save money by switching to a supplier with lower rates. Comparing different tariffs can help you find a better deal - or get a quote in seconds and see what you could save.

Does switching cost anything?

Switching shouldn't cost anything, and any credits from your previous supplier should be returned to you within 14 days of your final bill.

If you're on a fixed-rate tariff, there might be an exit fee to pay if you leave before your fixed rate ends. Otherwise, switching should be free - but check with your current supplier if you're not sure. Any credits from your previous supplier should be returned to you within 14 days of your final bill.

Can I switch energy supplier if I rent?

Yes. Renters can generally switch energy suppliers, so long as they pay energy bills directly and are not paying them through a landlord. If you're unsure of whether you pay your bills directly or not, check your tenancy agreement or visit Citizens Advice.

When can I switch energy supplier without paying an exit fee?

If you’re on a fixed rate deal, there’s often an exit fee if you switch before your tariff ends.

But if you leave in the last 49 days (i.e. seven weeks) of your contract, there’s no penalty to pay.

And that’s usually the same if you move home. 

Can you switch energy suppliers if you owe money?

Credit meter customers

If you have a non-prepayment meter and you've owed money to your supplier for 28 days or less, you can still switch. The debt will just be added to your final bill.

Prepayment meter customers

You can switch to a new gas or electricity supplier if you owe less than £500 per fuel.

You’ll still have to repay the debt, and your new supplier must agree to transfer it through a Debt Assignment Protocol (DAP).

What happens to your credit when you switch energy suppliers?

All you need to do is take a final meter reading and send it to your old supplier. If you’re in credit they’ll send you a refund.

And if you still owe money, they’ll send you a final bill which you’ll need to pay.

Do I have to pay exit fees if my energy tariff has seven weeks to left?

Exit penalties don’t apply for the last 49 days of a fixed rate tariff.

Otherwise switching should be free – but check with your old supplier if you’re not sure.

How often can I change energy providers?

You can change energy supplier every 28 days if you like. But watch out for exit fees and check before you switch.

Many people review their options every 12 months before deciding whether to switch.

Fixed vs variable energy tariffs - which is better?

Our guide explains the differences between fixed rate and variable rate energy tariffs to help you make an informed choice.

Additional information

  1. Half-price electricity is from 11am to 4pm every Sunday. You must have a smart meter to take part in PeakSave.