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It’s time to compare gas prices and tariffs

Gas prices can vary based on your meter type, tariff, and the supplier’s market rates. Whether you’re on a prepayment meter or a standard plan, comparing options helps you find a good deal with a lower rate. Some suppliers also offer support like the Warm Home Discount or payment plans — especially useful if you're trying to budget through winter. You can even choose greener options with natural gas from renewable sources.

Below you can find more information about how to compare gas suppliers for your home.

Taking a moment to compare energy prices helps you see the bigger picture on household costs, especially if you also use electricity from the same energy supplier.

How to Compare and Switch Gas Suppliers

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Understanding Gas Tariffs

Gas tariffs are the rates and charges you pay for using natural gas in your home. Most include a standing charge (a daily fixed fee) and a unit rate based on how many kilowatt hours (kWh) you use.

There are different types of gas tariffs to choose from:

  • Fixed rate – Your unit price stays the same for a set period
  • Variable rate – Your price can go up or down with market prices
  • Dual fuel – A combined tariff for gas and electricity from the same supplier

The cheapest energy supplier for you will depend on your usage, payment method, and whether you take regular meter readings. By understanding the differences between tariffs, you can pick one that suits your budget and offers better value.

Compare Gas Prices and Switch

Gas prices vary depending on your location, usage, and the type of gas tariff you’re on. By using our comparison tool, you can quickly check whether you're on a good deal or if there's a cheaper energy supplier available in your area.

Run Regular Gas Comparisons

We recommend comparing gas prices at least once a year. Tariffs and market prices change regularly, and switching can help you avoid overpaying. This is especially useful if you're on a prepayment meter or a variable rate plan, where costs can rise unexpectedly.

Use Accurate Information

For the most accurate quote, use your annual gas usage in kWh, which you'll find on your energy bill or annual summary. This ensures the results reflect the right amount of gas you use and helps you find a more tailored plan.

Switching Is Simple

Once you choose a plan, we’ll take care of the rest — notifying your current and new suppliers. All you'll need to do is provide a regular meter reading when asked. If you’re on a smart card or smart meter, this may happen automatically.

How to Reduce Your Gas Bills

Saving on gas isn’t just about switching. You can take these extra steps to cut costs further:

  • Install a smart meter – Track your usage and spot patterns that cost more.
  • Upgrade old appliances – Older natural gas boilers and heaters often waste energy.
  • Turn down your thermostat – Reducing by just 1–2°C can lead to noticeable savings.
  • Pay by Direct Debit – Most suppliers offer discounts if you pay monthly via Direct Debit.
  • Use online account management – Some suppliers offer extra savings for paperless billing.
  • Check for extra support – You may qualify for schemes like the Winter Fuel Payment or a payment plan if you’re on a tight budget.

Gas Prices Explained per kWh

When comparing gas prices with Free Price Compare, you’ll receive a personal projection — an estimate of how much you’ll pay over the next 12 months based on your usage and the unit rates offered by each supplier.

Gas is priced in kilowatt hours (kWh). Most UK households are on a standard variable rate tariff, where prices are regulated by the Ofgem energy price cap. This cap is reviewed every three months and limits how much suppliers can charge per unit. As of early 2024, the typical rate for gas is around 6.89p per kWh.

Each gas tariff includes:

  • A standing charge – a fixed daily fee
  • A unit rate – the price per kWh of natural gas you use

The total you pay will depend on your energy usage, chosen supplier, and whether you're on a fixed, variable, or dual fuel tariff. Some suppliers also offer flexible payment plans or online-only deals that may reduce your bill.

Understanding how unit rates and market prices work helps you find the cheapest energy supplier for your needs.

Gas Prices Explained per kWh

Understanding Your Gas Bill

According to Ofgem, energy suppliers must provide bills that are clear and easy to understand. While layouts differ, your gas bill should always include:

  • The name of your tariff and key details
  • Whether you could switch to a cheaper tariff
  • Your energy usage, usually in kWh
  • The contract end date and any exit fees
  • Contact details for your supplier

To make sure you're being charged the right amount, it's important to submit regular meter readings — unless you’re on a smart meter or smart card system that updates automatically. If you're on a prepayment meter, your bill may work differently, with top-ups tracked via a smart card or key.

Why It's Important to Compare Gas Prices

Gas prices vary between suppliers, and comparing them helps you find a good deal that matches your usage. Many people overpay simply because they haven’t checked the latest market prices or switched suppliers in years.

By running a comparison:

  • You may find the cheapest energy supplier in your area
  • You can access exclusive discounts or fixed tariffs
  • You’ll discover better payment plans to help manage bills

For landlords, price comparison is especially useful — helping reduce overheads across multiple properties. And for households, the savings can quickly add up over a year.

If you haven’t reviewed your gas deal recently, now is the time to make sure you’re not paying more than necessary.

Saving Money on Your Gas Bill

When you compare gas prices, you’re more likely to find a good deal that fits your home’s usage and budget. With so many suppliers and tariff types available — including fixed, variable, and prepayment tariffs — comparing options is the easiest way to spot the cheapest energy supplier for your needs.

You may also unlock access to:

  • Exclusive deals and promotions
  • Support schemes like the Warm Home Discount
  • Flexible payment plans or online-only discounts

Even small savings on your unit rate can add up to big differences across the year. By making sure you’re paying the right amount, comparison puts you in control of your energy bills.

When you regularly compare energy prices, it’s easier to spot the best overall deal and keep your energy bills under control across the year.

Finding a Reliable Gas Supplier

Price matters, but so does service. When comparing gas deals, it’s also worth checking each supplier’s:

  • Customer reviews
  • Billing accuracy
  • Green energy options
  • Track record for handling complaints

Whether you’re a household or a landlord managing multiple properties, switching to a reliable gas supplier means fewer headaches and better long-term value. That’s why comparing suppliers isn’t just about saving money — it’s about getting better service too.

Environmentally Friendly Gas Options

If you want to lower your carbon footprint, comparing gas prices also helps you find suppliers that offer green energy or natural gas from renewable sources. These environmentally friendly options support sustainability while still offering competitive pricing.

Some eco-conscious suppliers offset emissions, invest in renewable projects, or provide carbon-neutral tariffs. Comparing deals lets you choose a cheaper energy supplier that aligns with your values — without overpaying.

What Types of Gas Tariffs Can You Switch To?

When switching gas suppliers, there are three main types of gas tariffs to choose from:

  • Fixed Tariffs – You pay a set price per kWh for a fixed period, protecting you from market price changes. These are ideal if you want stability and are available in limited numbers as prices settle.
  • Variable Tariffs – Your price can go up or down in line with wholesale market rates. These may offer savings but carry some risk.
  • Dual Fuel Tariffs – Combine gas and electricity into one deal. This can offer added convenience, potential discounts, and simplified billing.

Your choice will depend on your budget, usage habits, and whether you want payment plans, greener energy, or just the best deal available.

How to Switch Gas Suppliers

How to Switch Gas Suppliers

Switching gas suppliers is easier than you might think — and it could save you hundreds of pounds a year. Here’s how the process works:

1. Compare Gas Prices

Start by using a comparison tool to view the latest tariffs. You'll see options based on your usage, postcode, and meter type (e.g. standard, smart meter, or prepayment meter). This helps you find the cheapest energy supplier for your needs.

2. Review the Tariff Details

Before switching, check:

  • Exit fees on your current gas contract
  • Whether the new plan is fixed or variable rate
  • Any available payment plans or online discounts

3. Confirm Your Switch

Once you've chosen your new supplier, you’ll just need to:

  • Enter your details
  • Confirm your switch
  • Wait for your new supplier to take over (you don’t need to contact your old one)

The process is covered by the Energy Switch Guarantee, so it’s safe, smooth, and typically takes no more than 5 working days.

4. Submit a Meter Reading

When your new supplier asks, provide a meter reading (unless you have a smart meter) to help them issue an accurate first bill and close your account with your previous provider.

Ready to switch? Use Free Price Compare to get a tailored quote in minutes — and start saving today.

Find a cheaper energy supplier in your area

How to Find Out When Your Gas Tariff Ends

Knowing when your gas contract ends helps you avoid rolling onto a more expensive standard variable rate tariff. Here’s how to check:

  1. Check your latest gas bill
    Most bills include the name of your gas tariff, your account number, and the contract end date.
  2. Call your supplier
    Your energy provider can confirm your tariff details and advise on any exit fees if you switch early.
  3. Watch for tariff end notifications
    By law, suppliers must tell you in writing when your deal is ending — usually between 42 and 49 days beforehand.

How to Choose a Cheap Gas Deal

When comparing options for your next gas tariff, consider the following to make sure you’re getting a good deal:

  • Is the unit price fixed or on a variable rate?
  • Are there any early exit fees if you want to switch again?
  • Are there discounts, loyalty rewards, or bill credits?
  • Does the supplier have strong customer service reviews?
  • Can you manage your account easily through an online portal?

Why pay more for the same supply of natural gas? Use Free Price Compare to check the latest offers and find the cheapest energy supplier in your area.

Will Switching Affect My Gas Supply?

No — switching gas suppliers won’t interrupt your gas supply. All gas comes through the same pipes, so your service will stay on throughout the switch.

What About the Price?

When you switch, your new gas tariff may have a different unit rate or standing charge. That’s why it’s important to compare deals and understand whether you're on a standard variable tariff, fixed deal, or subject to the energy price cap.

What Is the Energy Switch Guarantee?

The Energy Switch Guarantee ensures that:

  • Your switch will be completed within 5 working days
  • There will be no disruption to your gas supply
  • You’re protected if anything goes wrong

Handling Billing During the Switch

Switching suppliers involves a few billing checks:

  • Final meter reading – Your current supplier will use this to generate your final bill. Make sure it’s accurate.
  • Customer service – Read customer reviews of your new supplier to see how they handle billing issues.
  • Standard variable rates – If you're moved onto one temporarily, check the terms and compare prices again soon.

Rest assured: switching is simple, safe, and designed to protect your service while helping you get a better deal.

The Role of the Energy Market in Gas Prices

Gas prices in the UK are shaped by a mix of global energy trends, domestic supply, and government regulation — including the energy price cap set by Ofgem. When you compare gas tariffs, understanding these forces helps you make better choices.

How the Global Energy Market Affects Prices

Events like war, supply chain disruptions, or rising global demand for natural gas can push market prices up. This affects what UK suppliers pay to secure gas, which then impacts your unit rate — especially if you’re on a standard variable tariff.

Domestic Supply and Its Influence

Within the UK, domestic gas supply and demand also play a role. During cold months, usage increases — driving up prices. If there's a supply shortage, fewer cheap gas tariffs may be available.

Your own meter readings feed into this too. The more accurate your readings, the more reflective your personal quote will be when comparing gas suppliers and deciding whether to switch.

The Role of Energy Market in Gas Prices

Domestic Gas Market Share by Individual Energy Suppliers

Supplier 2025 Q1 2024 Q4 2023 Q4¹
British Gas ~27.8 % ~28 % ~28 %
Octopus Energy 24 % ~22 % ~22 %
E.ON 14.4 % 14.4 % ~14.4 %
EDF ~9.5 % ~9.5 % ~9.5 %
OVO Energy ~11.3 % ~11.3 % ~11.3 %
Scottish Power ~7.5 % ~7.5 % ~7.5 %

source - Ofgem

Key Highlights

  • British Gas remains the leading supplier with a stable share just under 28 %
  • Octopus Energy has emerged as the second-largest supplier, holding 24 % of the market as of early 2025 .
  • The other established firms—E.ON, EDF, OVO, and Scottish Power—have maintained steady market positions in the 7–14 % range

See if a dual fuel tariff is cheaper

Gas prices Frequently asked questions

Comparing gas-only tariffs can save money if you use a different electricity supplier or prefer to keep accounts separate. However, most households find dual-fuel deals cheaper overall, as suppliers often give discounts when you take both gas and electricity together. It’s worth comparing both options before deciding.

The Ofgem price cap limits the maximum unit rates and standing charges for gas and electricity on standard variable tariffs. It isn’t a cap on your total bill—what you pay depends on how much gas you use. For July–September 2025, the dual-fuel cap for a typical household is £1,720 per year, rising to £1,755 from 1 October–31 December 2025. The next review will be announced in late November 2025.

Yes. Gas unit rates and standing charges are directly affected by the quarterly price cap updates. When the cap rises or falls, your gas rates usually change in line with it.

From 1 October–31 December 2025, the average unit rate for gas is 6.29p per kWh, with a standing charge of 34.03p per day (for direct debit customers). For July–September 2025, the averages were 6.33p per kWh and 29.82p per day. Actual rates vary slightly by region.

The price cap fell in July 2025 before rising again slightly in October. Analysts expect further modest reductions in early 2026, but wholesale gas markets remain unpredictable. If you want certainty on your bills, a fixed-rate gas tariff may be a safer choice.

  • Fixed gas tariff: Locks in your price per kWh for a set period, usually 12–24 months. This shields you from rising costs.
  • Variable gas tariff: Follows Ofgem’s price cap, so your rate could go down if the cap falls—but it could rise if the cap increases.

No. Your gas supply will continue without interruption when you switch. The Energy Switch Guarantee ensures you stay connected throughout, and most switches complete in around 5 working days. If it takes longer, you may be entitled to £40 compensation.

No. Using FreePriceCompare to switch gas suppliers is free. We receive a commission from the supplier you choose, but this doesn’t affect the price you pay. The only possible extra cost is an exit fee if you’re leaving a fixed-term gas contract early—though suppliers cannot charge this if you’re within 49 days of the contract end date.

Yes, if you pay the gas bill directly. If your landlord manages and pays the gas account, they control the supplier, but you can ask them to consider switching to a cheaper deal. If you pay the supplier yourself, you have full rights to change.

When you move:

  1. Take a final gas meter reading on the day you leave.
  2. Give this reading to your old supplier so they can close your account.
  3. At your new home, the gas will default to the previous occupant’s supplier on a “deemed” tariff. You can compare and switch to a cheaper gas deal as soon as you move in.

If you’ve owed money for more than 28 days, your supplier may stop you from switching. If you’re on a prepayment meter and owe less than £150, you can usually still switch, and the debt will move to your new supplier. If you’re struggling with your gas bills, speak to your supplier—they must offer repayment plans and may provide extra support.

Yes. If you’re struggling with gas costs, you may qualify for:

  • Warm Home Discount – a one-off credit on your energy bill
  • Winter Fuel Payment – for pensioners (means-tested from 2025)
  • Cold Weather Payments – during prolonged freezing conditions
  • Supplier hardship funds or special tariffs

The Ofgem energy regulator sets the energy price cap, which limits the maximum unit rates and standing charges suppliers can charge on standard variable energy tariffs. It isn’t a cap on your total bill—what you pay depends on how much energy you use. For July–September 2025, the cap for a typical household is £1,720 per year, rising to £1,755 from 1 October–31 December 2025. This is the current price cap level, and the next review will be announced in late November 2025.

The price cap fell in July 2025 before a small increase in October. Future price rises or falls will depend on wholesale gas costs and Ofgem’s quarterly reviews. Analysts expect modest decreases in early 2026, but the market remains volatile. If you want stability, a fixed rate tariff may be the best option to protect you from future increases.

*Average annual cost based on the cheapest tariff available through Free Price Compare compared to the April 2025 price cap: £1,617 vs £1,755, a saving of £231 for typical dual fuel customers. Actual savings will vary depending on household consumption. Based on medium usage as defined by Ofgem’s Typical Domestic Consumption Values (2,700 kWh electricity and 11,500 kWh gas), paying by direct debit, with paperless billing. Prices averaged across all UK regions and correct as of 1 April 2025. Savings exclude any cashback you may be eligible for.

Page last updated on: 04/08/2025

Page reviewed by: Andrea Troy

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