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Why British homes are the perfect conditions for fleas in the winter

It’s not just your pet enjoying the central heating.

By Rebecca Roberts | Last updated Nov 13, 2025

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A picture of Itch Pet flea treatment with a cat and a dog

Think fleas die off when the temperature drops? Sadly not. While we’re cranking up the heating and lighting log burners, fleas are waking up from their summer siesta. Those few your pet picked up in August? They're now hatching in your carpets and settling into the nooks of your sofa.

Fleas thrive in warm, humid environments - so when the heating kicks in, so does 'infestation season'. In fact, just five fleas on an untreated pet can lead to over a million eggs in four weeks. Yep, a million.

That’s why year-round prevention matters. Itch’s vet-approved flea treatment is designed to break the flea life cycle and is tailored to your pet’s size and breed. They’ll even send it monthly, so you don’t forget. First month’s free, with £2.99 P&P. So, don’t wait for the scratching to start.