Fleas at the End of Summer: Why Treating the Pet Isn't Enough

The dog's been treated. The cat's been treated. And you're still getting bitten around the ankles every time you cross the living room. If it's any comfort, you're in good company: late summer is when our flea calls peak every single year, and almost every one starts with a variation of "but we've done the pet".

Why now?

Fleas love exactly the conditions your home has spent all summer building: warmth, humidity, and hosts moving in and out. The eggs and immature stages that have been quietly accumulating in carpets, skirting gaps, pet bedding and the sofa all season mature fastest in warm weather, so by August and September the population that's been developing invisibly starts hatching at once. Add holidays into the mix, an empty house followed by everyone returning, and you get the classic scene: a week of stored-up fleas greeting you at the front door.

The uncomfortable maths of a flea problem

Here's the bit that explains why treating the animal isn't enough. The adult fleas on your pet are only the visible tip of the infestation. The rest of it, the eggs, larvae and pupae, isn't on the animal at all. It's in the environment: deep in carpet pile, in the gaps under skirting boards, in the folds of pet bedding, in the car if the dog travels. Vet treatments deal with the adults that bite; they don't clear the nursery. Which is why the biting carries on for weeks after a diligent owner has done everything the vet asked.

What you can do before calling anyone

We'd rather you tried this first, honestly. Keep the pet's treatment up to date and ask your vet's advice on products, that's their patch, not ours. Then attack the environment: vacuum daily and thoroughly, including under furniture and along skirting edges, and empty the vacuum outside each time. Wash pet bedding hot. The vibration and warmth of vacuuming also encourages dormant pupae to hatch, which sounds like the opposite of helpful but actually brings them out where treatments can reach them. If you've seen one or two fleas and caught it early, a fortnight of that routine can genuinely finish the job.

When it's time to call us

If you're still being bitten after two weeks of proper vacuuming and an up-to-date pet treatment, the infestation is established in the fabric of the rooms, and that's where professional flea treatment earns its keep. We treat the environment systematically, every carpeted room, the cracks and edges the vacuum misses, and we'll tell you exactly how to prepare the house and how long to stay off treated floors. One thing we'll say against the shelf: the DIY foggers and bombs tend to disappoint, because the mist settles on surfaces and doesn't reach the deep, sheltered spots where the immature stages actually live.

Landlords and holiday let owners, this one lands on you between guests and tenancies, and it's worth moving quickly: an empty property doesn't starve fleas out anywhere near as fast as people hope. There's more on how we work on our main pest control page.

Get in touch

Still scratching after doing everything right? Get in touch and we'll clear the house properly, not just the pet.