Most business owners will tell you they’ve got enough on their plate without worrying about energy contracts. And that’s completely understandable. But that attitude, however reasonable it sounds, is quietly costing a lot of businesses a significant amount of money every single year.
The problem isn’t that gas suppliers are doing anything wrong, exactly. It’s that the market is set up in a way that rewards businesses who shop around and penalises those who don’t. If your contract ends and you don’t take action, many suppliers will roll you onto what’s called a “deemed rate” or an “out of contract rate” – and those rates are almost always considerably higher than anything you’d negotiate upfront. It’s not a scam. It’s just how the system works.
A small manufacturing firm in Leeds or a restaurant group in Birmingham could be sitting on an energy deal that made sense three years ago and makes absolutely no sense now. Prices have shifted, the market has changed, and what was competitive in 2023 might be leaving real money on the table in 2026.
The Switching Process Is Less Painful Than You Think
There’s a common assumption that switching business energy suppliers is a bureaucratic nightmare – stacks of paperwork, weeks of back-and-forth, service disruptions. In reality, it’s genuinely not that complicated, and for most businesses the actual disruption is basically zero. Your gas supply doesn’t get interrupted. You’re just moving your contract from one company to another.
What does take effort is doing the groundwork properly. You need to know your current contract end date, your current unit rate and standing charge, and roughly how much gas you use annually. That last bit is important, because the deals available to a small office using 5,000 kWh a year look completely different from what’s on offer for an industrial site using ten times that.
Once you’ve got those details together, the sensible move is to compare business gas prices across multiple suppliers rather than just ringing your current one and asking for a better deal. Suppliers aren’t going to volunteer their best rate unprompted. They’ll offer you something that sounds reasonable because it’s slightly better than what you’re already paying. That’s not the same as getting a genuinely competitive price.
What Actually Affects the Price You’re Offered
Your consumption level is the biggest factor, but it’s not the only one. The length of contract you’re willing to commit to matters too. Shorter contracts tend to cost more per unit, because the supplier is taking on more risk. A lot of businesses instinctively want flexibility, which is fair, but it does come at a price worth knowing about.
Credit history also plays a role, particularly for newer businesses. If a supplier views your company as a higher risk, you may find your options are narrower or the rates less attractive. It’s not necessarily a dealbreaker, but it’s worth being aware of going in.
Location matters less than it used to, but it still has some bearing depending on which distribution network your site sits on. Honestly, most businesses don’t know this detail off the top of their heads, and you shouldn’t be expected to – a decent comparison or broker service will factor it in automatically.
When’s the Right Time to Start Looking
Ideally, somewhere around three to six months before your current contract expires. That gives you enough time to compare properly, negotiate if needed, and get paperwork sorted without any panic. Leaving it until the last few weeks means you’re more likely to make a rushed decision or, worse, let the contract lapse entirely and end up on those out-of-contract rates we mentioned earlier.
If you’re already past that point and currently on a deemed rate, it’s still worth acting quickly. Those rates aren’t fixed indefinitely and the sooner you lock something in, the sooner you stop haemorrhaging money on a rate you never actually agreed to.
There’s no perfect time to sort business gas, but there’s definitely a wrong time – and that’s ignoring it because it feels like a task for another day. A bit of time spent comparing now can save a business hundreds or even thousands of pounds over the course of a contract. That’s not a small thing, especially with margins as tight as they’ve been for most of 2026.