deal
Last Verified: 2 days ago
deal
Last Verified: 4 days ago
£30 Amazon Gift Card When You Switch to a Dual Fuel Fixed Tariff (Gas & Electricity) as a New Customer at British Gas Energy
deal
Last Verified: 4 days ago
£15 Amazon Gift Card When You Switch to a Single Fuel Fixed Tariff (Gas or Electricity) as a New Customer at British Gas Energy
deal
Last Verified: 4 days ago
£15 Amazon Gift Card When You Switch to a Single Fuel Fixed Tariff (Gas or Electricity) from a Standard Variable Tariff as an Existing Customer at British Gas Energy
deal
Last Verified: 3 days ago
£30 Amazon Gift Card When You Switch to a Dual Fuel Fixed Tariff (Gas & Electricity) from a Standard Variable Tariff as an Existing Customer at British Gas Energy
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About the Brand
British Gas is a household name, originally operating as the nationalised gas supplier before its privatisation in the 1980s. Today, it functions as the UK consumer energy arm of Centrica, a publicly listed international energy and services company. It remains one of the largest suppliers in the country, serving millions of residential customers.
The core offering revolves around gas and electricity supply, with a strong push towards zero-carbon renewable tariffs for environmentally conscious households. Beyond standard energy provision, they provide extensive HomeCare packages. These plans cover boiler breakdowns, central heating repairs, and annual services, giving homeowners peace of mind when winter emergencies strike.
Smart meters are central to the modern British Gas experience, eliminating estimated bills by transmitting readings directly. This hardware unlocks their PeakSave scheme, which rewards customers with half-price electricity during specific off-peak windows—like Sunday afternoons—for shifting usage away from times of high grid stress. Users can also link their accounts to earn Nectar points on monthly energy spend.
Whether you are switching providers for a competitive dual-fuel fixed deal or simply upgrading your existing heating cover, combining these inherent benefits with the promotional offers below is a reliable way to reduce your annual outgoings.
Page last updated: 2 August 2026
How to use
While the current promotions on this page don’t require a promo code, British Gas does occasionally release them for things like HomeCare cover. When that happens, simply click the offer card to copy the code, open their website, and paste it into the promotional box during your online checkout to apply the discount.
Most savings here come from automatic switching deals. If you are moving from a standard variable tariff to a fixed dual-fuel plan, the new rate applies automatically once you complete the online quote and sign-up process. There is no manual code entry required; the discounted unit rates and standing charges are baked directly into your new contract terms.
Many of the current switching incentives include Amazon gift cards, typically ranging from £15 to £30 depending on whether you choose single or dual fuel. You usually need to stay on the new tariff for a set period—often around 90 days—before the reward is emailed to you. Make sure your direct debit is active and your account is in good standing to qualify.
Energy switching promotions can sometimes have strict eligibility criteria regarding your current supplier or meter type. If you find that a specific gift card offer hasn’t triggered or a switching deal isn’t applying to your quote, click the report button on the offer card so we can investigate the issue.
Shopping Guide
When is the best time to switch my energy tariff? Energy prices fluctuate based on the wholesale market, but the best time to switch is usually a few weeks before your current fixed deal expires. If you wait until the contract ends, you will automatically roll onto the supplier’s standard variable tariff, which is typically capped at a higher rate. We recommend checking your account about 45 days before your renewal date to lock in a new fixed rate and secure any switching bonuses.
Should I choose a single fuel or dual fuel fixed tariff? Dual fuel tariffs—where British Gas supplies both your gas and electricity—are almost always more convenient and frequently come with higher switching incentives, such as larger Amazon gift cards. However, if you live in a flat with a communal heating system or use an alternative heating source like oil or an air-source heat pump, a single fuel electricity-only contract might be your only option. Always run a quick comparison quote for both to see which yields the better overall unit rate.
How can I lower my bills beyond just switching tariffs? Signing up for a smart meter unlocks British Gas’s PeakSave scheme, which offers half-price electricity during specific off-peak windows, like Sunday afternoons, for shifting your usage away from busy grid hours. You can also link your energy account to the Nectar loyalty programme to earn points on your monthly direct debit spend. Combining these behavioural rewards with a competitive fixed tariff is the most effective way to drive down your annual household outgoings.
