Switch your energy supplier to British Gas in three easy steps

Save even more with PeakSave

Switch to our 18-month fixed tariff and avoid price rises for two winters .1

Find the right tariff for you, and let us do the switching.

Start your switch

How to switch 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.

Black Friday deal ends 6 December:

Limited offer: £25 Amazon.co.uk Gift Card and chance to win a year’s free energy!2

£25 Amazon.co.uk Gift Card

£25 Amazon.co.uk Gift Card for the first 50,000 customers who switch to a British Gas fixed tariff.

A year of free energy on us

You’ll get a chance to win free energy for a year in our prize draw.

Ofgem price cap update

If you're on or choose a variable tariff, your energy prices will increase from 1st January 2025. We'll be in touch to let you know your rates and your new estimated annual energy costs.

Only variable rates are changing, so check our fixed tariffs and get protected against price rises. And, if we bring out an even better tariff fixed – you can swap for free.

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Why switch your energy supplier?

Here’s the top three reasons customers choose to change their electricity and gas supplier:

Value and choice

Best value tariffs and ways to save more with PeakSave.

Peace of Mind

Reliable and stable for over 200 years.

Award winning service

Easy to manage your energy online or via our app - plus friendly support when you need it.

Why switch your gas and electric supply to British Gas?

We’re Britain’s leading energy supplier. And here’s why.

  • From offers that count to home services and smart technology – we provide more than just energy
  • We’re signed up to the Energy Switch Guarantee, making sure switching is safe, fast, and easy - for everyone 
  • We give you choice. We offer fixed and variable energy tariffs, prepayment (Pay As You Go) tariffs and innovative electric vehicle tariffs. And, if you’re thinking about going greener with solar panels or a heat pump, check out our exclusive energy deals
  • Service you can rely on. We won Best Overall Improvement in the Uswitch Energy Awards 2024. This means we performed best - out of all energy suppliers - at improving our overall customer satisfaction scores this year
  • We’re looking to the future with energy-saving solutions and green initiatives.

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:

  • Half-price electricity with PeakSave
  • 1.5 million smart meters installed to help keep track of energy use
  • Easy payments and meter reading with our new and improved mobile app
  • Extra UK-based customer service advisors plus extended call and chat opening times to include weekends.
  • If you buy selected Samsung appliances and get a credit on your electricity bill.
Switch to British Gas today

Tariff choices if I change my energy supplier to British Gas

Fixed tariffs

Give you price stability - because they don't change with the price cap, which can help you budget.

EV tariffs

Special tariffs for customers who need to charge an electric car at home.

Smart energy tariffs

If you have greener home solutions from us, Hive, or selected partners - and get your energy from us - you can unlock some of our best smart tariffs.

Variable tariffs

With a variable tariff, the price of energy usually changes every 3 months, but there’s no exit fees if you decide to switch supplier.

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. To find out more please read our expert guide.

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.

If you don’t find what you’re looking for in our frequently asked questions, visit our switching energy supplier guide for more information.

Additional information

  1. Terms and conditions apply. Ofgem has announced that the price cap will increase from 1st January 2025. You could save by choosing our 18-month fixed tariff instead of our Standard Variable tariff, which is governed by Ofgem’s price cap. Savings based on average domestic gas and electricity energy consumption values (gas: 11,500kWh, electricity: 2,700kWh). The exact savings achieved will vary depending on your energy use. Our customers taking part in PeakSave are saving £24 on average per year. PeakSave average savings per household up to 30th September 2024. If the price cap falls after April 2025, you could pay more for your energy with a fixed tariff. See our latest predictions for the price cap. Read more information on how homes could save with British Gas.

  2. Black Friday deals
    Amazon.co.uk Gift Card offer – The first 50,000 new or existing customers switching to British Gas and choosing any fixed energy tariff (excluding renewal offer tariffs) will receive a £25 Amazon.co.uk Gift Card. The gift card will be sent to the email address associated with the account holder after 60 days from when your energy switch has completed. Existing British Gas customers who change tariff to any fixed energy tariff (excluding renewal offer tariffs) will also get a £25 Amazon.co.uk Gift Card. The gift card will be sent after 60 days from when your tariff change has completed. The Black Friday Amazon.co.uk Gift Card offer is combinable with the Refer and Friend incentive only. We reserve the right to withdraw the offer at any time. Read the full Black Friday Amazon.co.uk Gift Card offer terms and conditions.

    Free prize draw - One winner will receive a year's worth of energy costs based on average UK household gas and electricity consumption, valued at £1,800. Entry is automatic for all customers who switch to a British Gas fixed energy tariff during the promotional period (see terms). The prize draw will take place on 20th December 2024. Read the full prize draw terms and conditions. Read the full prize draw terms and conditions.