Speaking at the Ideal Home Show, he elaborated, explaining that while bills recently fell, it’s only temporary.
“We’re in this perverse situation right now that all energy bills dropped,” he said, adding that the cut was driven by policy changes rather than cheaper energy.
He warned that many people don’t even realise they are on the cap.
“So many people do not know they are on the price cap. You do not want to be on it.”
Energy bills forecast to jump 16%
Lewis said current predictions suggest a sharp rise is coming within months.
“According to current predictions, the price cap is going up by 16% in July,” he said.
He added that prices could remain high through October and even into January, depending on global events.
“The world is really, really uncertain right now, and nobody knows.”
The short window to act
Despite the looming increase, Lewis said there is currently a rare opportunity to lock in cheaper deals.
GET OFF THE PRICE CAP IF YOU CAN. DON’T IGNORE THIS (unsure if you’re on the Cap? You likely are!) There’s a window of opportunity to lock in prices below the current Cap to avoid the huge hike coming in July. M’full briefing & top deals list here… https://t.co/i8h3N8p771
— Martin Lewis (@MartinSLewis) April 14, 2026
“What you need to do is get yourself a fix when they’re cheap,” he said.
He was speaking at the Ideal Home Show at Olympia, London, which runs from April 10–19, where he explained that falling gas prices have recently improved deals: A week ago, fixes were 10% more expensive than the price cap.
Now, some are around 2% cheaper than the current cap.
That means switching now could save households money before the next rise hits.
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What households should do now
Lewis urged people worried about rising bills to act quickly:
“If you’re worried, get yourself the cheapest fix you can, preferably one that’s cheaper than the April price cap.
“Then you’ll be saving straight away… and likely saving later in the year too.”
However, he cautioned there are no guarantees due to ongoing global uncertainty.
