Switch your business gas supplier

Last updated: July 2026

Switching business gas takes about ten minutes of your time and one form. Once you proceed, the switch completes within 5 working days, and you can request a specific switch date (Citizens Advice, correct as of July 2026). Your gas never goes off. Only the name on the bill changes.

The gas itself comes through the same pipes from the same network whatever happens. A switch is paperwork: one company stops billing you, another starts. Nobody visits, nothing is disconnected, and the kettle stays on throughout.

When you can switch (and when you can't)

Inside a fixed contract with months left? Stay put. Leaving a fixed term early usually triggers termination fees that eat the gain. Tell us your end date and we'll ring you when it's time, not before. Sometimes the right move is no move, and we'd rather say so than sell you a bad one.

Coming up to your end date? Ofgem requires suppliers to send micro-businesses renewal information around 60 days before a fixed term ends, and Citizens Advice says most suppliers get in touch about three months out. That's your working window. Most suppliers will also price a future-dated contract well before your end date, so a good week in the market can be locked in early. If a renewal letter has already landed, our business gas renewal page translates it.

On a rolling contract with no end date? You can switch with up to 30 days' notice.

Out of contract, or never signed one? You can switch at any time, with no notice and no exit fee. Move now: Ofgem's published figures put deemed prices at 80% more than negotiated rates on average, and around 10% of micro-businesses are sitting on them (Ofgem, figures published 2021, rules checked July 2026).

Moved into new premises? You're on the sitting supplier's deemed rates from the day you get the keys, whether or not they've written to you. Take a meter reading on day one and keep it. You can switch immediately, with no notice and nothing to cancel.

Most small firms count as micro-businesses. Gas use under 293,000 kWh a year qualifies on its own, as does having fewer than 10 full-time staff with turnover of €2m or less. That status caps your notice period at 30 days, caps any rollover at one year, and lets you give notice of intent to switch at any point in your contract. Give it early, in writing. It commits you to nothing and keeps every exit open. The fuller picture is in our contracts and rights guide (when live).

The switch, step by step

1. Send us a recent bill, or your postcode and meter details if the bill's gone missing. Two minutes.
2. We quote the market, like for like against what you pay now, with our commission shown next to each price. If you want green gas on the list, say so. Usually back within one working day.
3. You pick one and sign a letter of authority. That lets us handle the paperwork with suppliers on your behalf. It never lets us sign a contract for you. What an LOA does and doesn't allow is in the letter of authority guide.
4. We send any notice your old contract requires. Rolling contracts need up to 30 days. A fixed contract that has already ended needs none.
5. The new supplier registers your meter. From the point you proceed, the switch completes within 5 working days, or on a specific date you choose.
6. You give a meter reading on switch day. Your old supplier bills you to that reading and closes the account. Done. You're sorted.

Electricity is a separate registration we can run alongside your gas switch; the combined picture is on our business gas and electricity page (when live).

What it costs

Nothing upfront. We're paid a commission by the supplier you choose, built into the unit rate, and we show you the figure before you sign. Since 1 July 2024, Ofgem rules require suppliers to clearly set out costs including fees paid to brokers, so any broker hiding theirs is choosing to. How broker pay works, in full, is in our brokers and commissions guide.

The other cost to know about is the one for leaving a fixed term early. Termination fees vary by contract, which is why step one of any honest switch is checking your end date, not your rate.

What can go wrong

Your old supplier objects: they can block a switch only if you owe them money or you're still inside an unexpired fixed term. They can't object once your contract has expired, or if you're on deemed rates, and they must tell you the reason and how to resolve it. Clear the balance or the dates, and the switch goes through.

Someone is slow: registrations stall, final bills dawdle. If your old supplier drags their feet, we chase them, not you, and we email you either way.

The wrong meter gets switched: rare, and fixable. Suppliers sort erroneous transfers between themselves under industry processes, your supply continues throughout, and we stay on it until it's put right.

And if a supplier or broker lets you down, businesses with up to 50 employees (subject to turnover and consumption thresholds) have been able to take disputes to the Energy Ombudsman since 19 December 2024, with awards of up to £20,000. That covers broker complaints too. Any broker handling a small business must be registered with a redress scheme for suppliers to work with them. Check ours before you sign. Check anyone's.