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British Gas
Synonymous with gas and electricity supply, British Gas, known as Scottish Gas in Scotland and Nwy Prydain in Wales, is one of the UK's Big Six energy suppliers. A part of Centrica PLC, British Gas is also a FTSE 100 company and has its headquarters in Windsor, Berkshire, supplying gas and electricity to around 8 million homes, making it the largest domestic energy supplier in the UK.
British Gas Customer Rating
British Gas currently has a 4.5 out of 5 TrustScore on Trustpilot, based on more than 350,000 reviews. Trustpilot ratings can change over time, so this figure was checked in September 2026.
Customer reviews cover a wide range of experiences, including billing, customer service and engineer visits, so a rating alone does not tell you what your experience will be.
What tariffs does British Gas offer?
British Gas offers a mix of tariff types, and the exact names and rates on offer change regularly:
- Fixed tariffs: unit rates and standing charge locked in for the contract term. You can switch between British Gas fixed tariffs for free; an exit fee typically applies only if you leave for another supplier before the term ends.
- Standard variable tariff: rates move with the Ofgem price cap, reviewed every three months, with no fixed-term commitment.
- PeakSave: half-price electricity every Sunday between 11am and 4pm, available to British Gas electricity customers with a working smart meter.
- EV Power / EV Power+: EV-focused tariffs offering a cheaper overnight rate (from midnight to 5am). EV Power works with any charger brand; EV Power+ offers a lower rate but requires a Hive EV charger.
- Economy 7: a longstanding time-of-day tariff giving seven cheaper overnight hours, with exact timing depending on region and season.
- Pay As You Go / prepayment tariffs, and a Smart Export Guarantee (SEG) tariff for customers who generate their own renewable electricity.
Tariffs, prices and eligibility can change, so check the current deal available to you before switching.
What to check before switching to or from British Gas
- The tariff type: Decide whether a fixed, variable, tracker or time-of-use tariff suits your circumstances.
- Exit fees: Fixed tariffs can have an early termination charge, so check the terms before signing up.
- Your energy usage: Compare estimated annual costs using your actual gas and electricity consumption where possible.
- Smart meter requirements: Some EV and smart tariffs require a compatible smart meter.
- Additional services: British Gas also offers products such as HomeCare. These are separate from your energy supply, so check exactly what is included before paying for additional cover.
- Warm Home Discount eligibility: British Gas participates in the scheme; see our Warm Home Discount guide for current eligibility and dates, since this is assessed annually and isn’t specific to British Gas.
FAQs about British Gas
If you’re after more information about British Gas, look no further. Find the answers to your frequently asked questions below.
Does British Gas have an app?
Yes. British Gas has a free app for iOS and Android, covering bill payments, account settings and meter readings.
Is British Gas a good energy supplier?
British Gas is one of the UK's largest energy suppliers and has a current Trustpilot score of 4.5 out of 5. However, whether it is the right supplier for you depends on its current tariffs, your energy usage and the level of service you want.
Does British Gas offer fixed energy tariffs?
Yes. British Gas currently offers several fixed options, including its standard fixed tariffs and Fix & Fall. Tariff availability and pricing can change.
Does British Gas offer an EV tariff?
Yes. Its current EV tariff provides cheaper electricity between midnight and 5am and requires a smart meter.
Does British Gas support smart meters?
Yes. British Gas offers smart tariffs and supports smart meters. The requirements can vary depending on the tariff you choose.
What is British Gas HomeCare?
HomeCare is British Gas's range of boiler and central heating cover, including maintenance, insurance cover and an annual boiler check. It's sold separately from your energy tariff, so it's worth weighing the ongoing monthly cost against how likely you are to need a repair, and checking whether your boiler already has a manufacturer warranty.
Does British Gas have exit fees?
If you leave British Gas before your fixed contract ends, an exit fee may apply per fuel. The exact amount depends on your specific tariff, so check your contract terms or ask British Gas directly for a current figure rather than relying on a fixed number, since fees vary by tariff and are reviewed periodically. Exit fees are typically waived if you're moving house rather than actively switching supplier.
Is British Gas the cheapest energy supplier?
Not necessarily. As one of the largest suppliers, British Gas isn't always the cheapest option on the market. It's worth comparing its current tariffs against smaller and challenger suppliers using your actual usage figures, rather than assuming size means better value.
How to contact British Gas?
• Phone: 0333 202 9802 • Email: customercomplaints@britishgas.co.uk • Twitter/X: @BritishGas If a complaint isn't resolved within eight weeks, or you get a deadlock letter sooner, you can take it to the Energy Ombudsman free of charge.