Compare gas suppliers
It's quick and easy to find the best gas tariff for you using Which? Switch. Follow our simple steps to compare tariffs from all the major suppliers and switch to a better deal.
If you've never switched supplier, you could save hundreds of pounds a year on your energy bills. Which? Switch customers save an average of £217 per year when switching gas and electricity - that's the average annual saving based on 53,459 households who switched suppliers using Which? Switch and The Big Switch between 1 September 2011 and 31 August 2012.
What you'll need to compare gas suppliers
Comparing gas suppliers with Which? Switch is straightforward - here's what you need:
- Your postcode: your location affects which gas companies you can switch to, as suppliers differ according to geographical areas.
- Existing gas supplier and tariff: this information enables us to calculate possible savings compared with your current deal. Find the name of your tariff on your last gas bill, or by contacting your current gas supplier.
- How much gas you use: potential savings depend on how much gas you use. You can find out your gas usage by checking your annual energy statement, your online account or by phoning your supplier.
- Check if you're an IGT customer: fewer than 10% of homes are supplied by Independent Gas Transporter. The most reliable way to find out is to look at your MPRN (meter point reference number) - if you are supplied by IGT it will start with 74, 75, 76 or 77. IGT customers can switch supplier but some suppliers make an additional charge (which isn’t included in our quotes). Eon doesn’t charge IGT customers extra but First Utility doesn’t supply them.
Compare gas suppliers and prices
Gas prices: Is getting the cheapest price your top priority? When you run a gas supplier comparison on Which? Switch, we'll list the cheapest tariffs first. Some companies give discounts for paying by direct debit, managing your account online or opting out of receiving paper bills. You can also get discounts if you buy gas and electricity from the same supplier (dual fuel).
Energy company customer service: As well as looking at price, you may want to consider how well a gas company looks after its customers. Your comparison results include a star rating which shows how the supplier was rated for customer service in our energy companies satisfaction survey.
Switching to a new gas supplier
When you've chosen a new gas supplier, we provide it with your details so it can arrange to switch your supply. You'll need to give both your existing and new gas suppliers a meter reading. Your new gas supplier will use your existing meter and pipes, so no one will need to come to your house. The whole process takes approximately six to eight weeks.