Supplying the UK's energy for over 200 years
Switch your supply to British Gas and join over a million customers enjoying half-price electricity every Sunday. 1
Looking to change your current gas and electric supply?
Compare our tariffs
Shop for a new tariff and see how easy it is to switch to us from your existing provider.
Changing your tariff
Already a customer? Then it’s quick to change to a new tariff online.
Moving home
We can help sort out your gas and electricity supply, if you're moving in or out of your home.
Switch your gas and electric supply to British Gas
Everything you need to know about switching suppliers – all in one place.
Why 8 million customers choose us as their gas and electricity supplier
- We’ve been powering customers’ homes for 200 years – making us the UK’s oldest energy supplier.
- We give our customers the best deal, with no exit fees when switching between our fixed tariffs.
- We offer exclusive perks, including half-price electricity every Sunday.
- We’re always improving our customer service - We won Best Overall Improvement in the Uswitch Energy Awards 2024.
Getting more from your energy supplier
Think all gas and electricity suppliers are the same? Think again. Through our easy online access and tools, roll out of smart meters and range of energy tariffs, we’re helping customers save time and lower their bills.
Half-price electricity with PeakSave
Worry less about electricity usage, and more about perfecting those yorkshire puds! Enjoy half-price electricity every Sunday, 11am to 4pm when you join PeakSave.
Save up to £1752 a year with Hive
As a British Gas energy customer, you can enjoy up to 15% off Hive’s smart eco-tech.3
Join British Gas to receive your discount code on the final confirmation screen. If you're already with us, log in to your online account to access your discount code.
Smart meters
See how much energy you're spending and get more accurate bills.
Refer a friend reward scheme
When you recommend us to family or friends, we'll reward you. It's our way of saying thanks.
Smart energy tariffs
Smart solutions to help you take steps to reduce your bills and your carbon footprint.
New energy connections and meters
We provide meter installations and energy supply contracts for housing developers and self-builds projects.
Manage your energy supply your way
Your online account
Access your account online 24/7, all from the comfort of your home - making life easier for you.
- Download your gas and electricity bills
- Set up Direct Debits
- Send meter readings
On the go with our mobile app
In just a few taps you can make payments, receive notifications, send meter readings and much more.
Priority Services Register
We provide extra help to those who need it the most.
Put your feet up and take a look at our energy guides
Our handy energy guides include helpful tips on reducing your usage and choosing the right tariff.
Fixed or variable tariffs
We explain the difference to help you decide.
Energy saving tips
Reduce your bill and your carbon footprint with our energy saving tips.
Standing charges
How they work and why we pay them.
Our new account system
We’re creating a new system to make our service even better.
Help with energy bills
We know energy costs have increased. But we're to help and can offer useful tips to reduce your bills. Learn more about to how reduce your bills with our energy saving tips
Price Cap
The energy price cap is the maximum amount energy suppliers can charge you for each unit of energy if you're on a standard variable tariff.
Finding it difficult to pay your bills?
We don't want anyone to lose their energy supply because they can't afford it. We're here to help and support you.
Warm Home Discount
The Warm Home Discount is a payment made towards your electricity bills once a year.
Our customers love us!
Here’s why they rate us ‘Excellent’ on Trustpilot:
- Save money on our fixed tariff vs Ofgem’s price cap
- Manage your energy account anytime, anywhere with our new app or online account
- Fast and friendly support, when you need it. We’ll get you connected with our team in minutes.
Additional information
Sign up to PeakSave to enjoy half-price electricity from 11am – 4pm every Sunday. You must have a smart meter to join PeakSave.
Saving of £174.82 based on the Ofgem medium annual gas consumption of 11,500 kWh at the July 2025 UK average unit price of 6.987 pence per kWh including VAT. Emissions saved per year: 508 kg CO2 (0.184kg per kWh). Actual savings will vary depending on individual circumstances.
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Up to 15% off RRP of a Hive thermostat purchased on hivehome.com. Available to new and existing British Gas residential energy customers. Individuals without an existing British Gas energy supply contract must enter into an agreement for one via britishgas.co.uk to qualify for the offer. Offer cannot be used on pre-existing orders or in conjunction with any other offer. 10% off only available on Hive Thermostat or Hive Thermostat Mini, Self Install. 15% off only available on Hive Original Thermostat or Hive Mini when purchased with Professional Install. Discounts apply to thermostats purchased with or without hub. Discount does not apply to other products or services or multiple purchases such as Multi Zone. Discount code will be provided on confirmation screen of energy switch journey and on energy deals page available here: britishgas.co.uk/help-and-support/deals – only accessible to British Gas customers who log in. Discount will only be applied when the promo code is entered during payment for the thermostat. Only one voucher code can be used per customer. Subject to availability. Terms and exclusions apply - see hivehome.com/terms.