Your Comprehensive Guide to British Gas: Tariffs, Services, and Reviews
As one of the most recognisable names in UK energy, British Gas has a history that stretches back over two centuries. Today, it remains a major supplier of gas and electricity to millions of homes. But beyond its heritage, what does British Gas offer customers in the modern, competitive energy market?
This guide explores everything you need to know, from its range of energy tariffs and customer benefits to its home services and customer satisfaction record.
1. Who is British Gas? A Look at the UK's Most Established Energy Provider
The story of British Gas begins in the early 19th century, making it the UK's longest-standing energy company. Now part of the wider Centrica Group, it is a dominant force in the domestic energy sector. While it operates as British Gas in England and Wales, you'll find it trading under the name Scottish Gas in Scotland.
Beyond its core business of supplying energy, British Gas is known for its charitable work. The British Gas Energy Trust is an independent charity that provides financial support and advice to individuals struggling with energy debt, regardless of who their supplier is.
2. Exploring British Gas Energy Tariffs
British Gas aims to cater for a wide variety of households with a diverse selection of tariff structures. The prices you pay will depend on the type of plan you choose, and it's worth noting that the wider market backdrop has shifted considerably during 2026, with Ofgem's price cap rising to £1,862 from 1 July 2026, an increase of around 13% on the previous level. This makes understanding the differences between tariff types more important than ever.
Fixed-Rate Tariffs: Certainty for Your Bills
A fixed-rate tariff locks in the price you pay per unit of energy (kWh) and the daily standing charge for a set period, typically 12 or 24 months. This means your rates are protected from market volatility, offering peace of mind and predictable costs. While your total bill will still change based on your usage, the underlying price won't.
Fix & Fall: A New Twist on Fixed Pricing
In a notable development for 2026, British Gas introduced its "Fix & Fall" tariff, billed as a first-of-its-kind product in the UK market. Customers lock in their rates for two years, giving the usual protection from price rises, but with a built-in safeguard: if Ofgem's price cap falls when it's reassessed on 1 July 2027, British Gas will automatically reduce customers' rates by up to £50 on a typical dual-fuel bill. This tariff was developed following a trial period and is aimed squarely at households who want fixed-term security without losing out entirely if wholesale prices ease. Customers on Fix & Fall also automatically qualify for the PeakSave Sundays scheme (see below), adding an extra layer of potential savings.
Standard Variable Tariffs: Flexibility with the Market
If you are on a standard variable tariff (SVT), the price you pay per unit of energy can rise and fall. These tariffs are not fixed and closely follow the energy price cap set by the regulator, Ofgem. This provides flexibility as you can switch to another deal at any time without penalty, but it also means your bills could increase if the price cap goes up, as has been the case with the most recent cap adjustment.
Specialist Tariffs for Modern Homes
British Gas also provides tariffs tailored to specific needs, such as:
- Electric Vehicle (EV) Tariffs: These plans offer significantly cheaper electricity rates during off-peak hours overnight, making it much more cost-effective to charge an electric car at home.
- Time-of-Use Tariffs: Similar to EV tariffs, these offer different prices for electricity at different times of the day, rewarding customers who can shift their energy usage away from peak times.
Prepayment Tariffs: Pay-As-You-Go Energy
For customers with a prepayment meter, these tariffs allow you to pay for your energy upfront. You top up your meter with credit, and when it runs out, your supply is paused until you add more. This can be an effective way to manage a budget and avoid getting into debt. Prepayment customers who are eligible for PeakSave rewards will have any credit owed applied directly to their smart meter, rather than via bank transfer or cheque.
3. Exclusive Customer Perks and Savings Schemes
British Gas offers several schemes designed to help customers manage their energy consumption and save money, and this area of the business has expanded considerably over the past year.
- PeakSave Sundays: This long-running and increasingly popular scheme is available to customers with a smart meter who get their electricity from British Gas. It provides half-price electricity every Sunday between 11am and 4pm, making it ideal for batch cooking, laundry, dishwashing, and charging devices. British Gas has highlighted that the scheme passed the milestone of one million sign-ups during 2026, with customers collectively saving close to £25 million since it launched in 2023.
- PeakSave Green Flex Events: Alongside the regular Sunday discount, British Gas runs occasional "PeakSave Green Flex" events during periods of high renewable energy generation or, conversely, periods of strain on the grid (such as participation in National Grid ESO's Demand Flexibility Service). During these events, which can fall on any day including bank holidays, customers get half-price electricity for an hour or two and are notified by email in advance. Any savings are credited back as "PeakSave Green Flex Credit" on the next bill, typically within around two weeks of the event. The scheme has reportedly helped customers cut thousands of tonnes of carbon emissions to date.
- PeakSave for Business: Smaller businesses with a smart meter can also register for PeakSave, giving them access to the same half-price electricity events. British Gas has run incentive campaigns for business customers, including prize draws tied to sponsorships such as Team GB and ParalympicsGB.
- Free Tariff Swaps: If you're on a British Gas fixed tariff and they release a new, cheaper fixed deal, you can switch to it without incurring any exit fees.
It's worth noting that PeakSave eligibility is tied to your electricity account specifically. If you keep your gas with British Gas but switch your electricity to another supplier, you'll lose access to PeakSave, even if your gas account remains active. Moving home also requires re-registering for the scheme at your new address, even if you keep the same British Gas account and tariff.
4. Beyond Energy: What Else Does British Gas Offer?
The company has expanded far beyond simply supplying gas and electricity. Its extensive network of engineers provides a wide range of home services, available to both customers and non-customers alike.
These services include:
- HomeCare Cover: A suite of insurance products that cover your boiler, central heating, plumbing, drains, and home electrics.
- Boiler Repair and Installation: One-off repairs and the installation of new, energy-efficient A-rated boilers.
- Smart Home Technology: Installation of smart meters and smart thermostats like Hive to give you greater control over your energy use.
- Green Home Solutions: British Gas offers installation for air source heat pumps, solar panels, and home insulation to help households reduce their carbon footprint.
5. Customer Service and Reviews: What Do Customers Really Think?
British Gas is a provider that attracts a wide spectrum of feedback. On review platforms like TrustPilot, it maintains a generally positive rating from hundreds of thousands of reviews.
Many five-star reviews praise the professionalism and efficiency of its engineers, particularly for HomeCare visits and boiler installations. Conversely, negative reviews often focus on difficulties with billing or call centre experiences. This contrast suggests that while its engineering division is highly regarded, customer service experiences can vary. Feedback specifically around the PeakSave scheme tends to be more consistently positive, with many customers describing the sign-up process as quick and straightforward, and appreciating the email reminders sent ahead of savings events.
6. Getting in Touch with British Gas
You can contact British Gas through several channels, including live chat and email. For phone support, the number you need to call depends on the format of your customer number.
- If your customer number starts with 'A' or 'BGX':
- Call 0330 080 3880 (Mon-Fri 8am-6pm, Sat 9am-2pm).
- If your customer number starts with '85':
- Standard Customers: 0330 100 0056 (Mon-Fri 8am-6pm, Sat 9am-2pm).
- Prepayment Customers: 0330 100 0303 (Mon-Fri 9am-5pm).
For any urgent meter-related issues, there is a dedicated 24/7 emergency line: 0333 009 6135.
7. Frequently Asked Questions About British Gas
Can I get a smart meter with British Gas?
Yes, British Gas offers free smart meter installations to its customers. You can usually book an appointment easily through your online account, and having a smart meter is also a prerequisite for joining schemes like PeakSave.
Are there charges for leaving a contract early?
If you are on a fixed-rate tariff, you will likely be charged an exit fee for leaving before the contract end date. This fee is typically around £50 per fuel. However, these fees are waived if you switch within the last 49 days of your contract. There are no exit fees for standard variable tariffs.
What is British Gas's approach to renewable energy?
Many of British Gas's fixed-rate tariffs come with 100% renewable electricity as standard. This is sourced from wind, solar, and hydro generation. The company is also investing heavily in greener technologies like heat pumps to support the UK's transition to net zero, and initiatives such as PeakSave Green Flex are explicitly designed to help balance the grid as more renewable generation comes online.
Is it easy to switch to British Gas?
Switching is a straightforward process managed entirely by British Gas once you sign up. Your energy supply will not be interrupted, and the switch is typically completed within a few weeks.
How does the new Fix & Fall tariff compare to a standard fixed-rate deal?
A standard fixed-rate tariff guarantees your unit rates for the length of the contract regardless of what happens to the wider market. Fix & Fall offers the same two-year price security, but adds a one-off opportunity for your rates to fall in line with Ofgem's price cap if it drops when reviewed in mid-2027. Whether this is the right choice depends on your personal attitude to risk: it offers more flexibility than a conventional fix, but, as with any fixed deal, it may not always be the absolute cheapest option on the market at the point of signing up.
What should I do if I'm struggling to pay my energy bills?
If you're finding it difficult to keep up with payments, it's best to contact your supplier as early as possible, as most energy companies, including British Gas, offer support schemes for customers in financial difficulty. The British Gas Energy Trust is also available to provide grants and advice to anyone struggling with energy debt, even if British Gas is not their current supplier.
