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Fleas in the House but No Pets? Where They Come From
Family-run, licensed and insured pest control in South Florida.
$50 OFF your first service + FREE inspectionNew customers · No code needed · No expirationFinding fleas in the house with no pets feels like it shouldn't be possible. You don't have a dog or a cat, and yet your ankles are covered in itchy bites and something tiny just jumped off the rug. It happens more often than people think, and there's almost always an explanation: a pet that lived there before you, cocoons that were waiting for someone to walk in, or animals sleeping under the house. Here's how to figure out which one, and what fixes it.
Where fleas come from when you don't have pets
- The last owner's or tenant's pets. Adult fleas live on animals, but most of the population (eggs, larvae and cocoons) lives in the carpet, the rugs, the furniture and the shady parts of the yard. When the pet moves out, that population stays behind.
- Cocoons waiting for someone to show up. Young fleas spin a sticky cocoon and can sit inside it until vibration, warmth or the carbon dioxide we breathe out signals that someone is nearby. That's why fleas in a new house, or in a house that's been sitting empty, often show up right after move-in or right after you get back from a long trip.
- Wildlife and strays under the house. Raccoons, opossums and stray cats that rest under decks, porches and crawl spaces can keep fleas going outside and bring them back in, even if no animal ever lives in your home.
Fleas in a new house or after a long trip
If you just moved in, or you've come back after months away, the timing is your clue. Nobody was walking around, and then you were. Footsteps and body heat are exactly what a waiting flea responds to, so a first wave of bites in the first days is common. Landlords and seasonal residents see this pattern often; our landlord turnover checklist and back-for-the-season checklist cover what to look for.
How to tell it's fleas
- Bites around the ankles and lower legs, small, red and itchy, often in groups
- Tiny dark insects that jump, not crawl, when you walk across the rug
- The white sock test: walk the carpet in white socks for a few minutes and look for small dark specks that jump
- Flea dirt: black specks in carpet or upholstery that turn reddish on a damp paper towel
Bites alone can't tell you what bit you. If you're finding bites but no jumpers, it could be something else, like bed bugs or no-see-ums. The cat flea page has photos.
What to do with fleas in the house and no pets
- Vacuum daily for the next couple of weeks: carpets, rugs, under cushions and along baseboards. The vibration brings fleas out of their cocoons.
- Empty the vacuum outside right away, into a sealed trash bag.
- Wash bedding, throw rugs and cushion covers in hot water.
- Look under the house, deck and porch for signs of animals sleeping there.
- If a new pet is coming, ask your vet about flea care before it arrives.
If wildlife is the source
We don't remove or trap animals. Those go to a nuisance wildlife trapper; the FWC keeps a list of them on its website. Once the animals are gone, the spots where they slept still need flea treatment, and that's where we come in.
How treatment works
We treat the inside of the home, focusing on carpets, rugs, furniture and baseboards, with products that include an insect growth regulator to stop larvae from developing. We also treat the shaded spots outside where animals have been resting. Keep kids and pets off treated areas until dry, and follow your technician's instructions.
Seeing a few fleas for a couple of weeks after treatment is normal. Those are new fleas coming out of cocoons, and our post on fleas that came back after treatment explains why. If a follow-up visit is needed, we'll tell you.
Our general pest plan is $125 per quarter, about $42 a month, and monthly or custom schedules are quoted after the inspection. For plan customers: "If pests come back between visits, so do we, at no extra cost." There are no long-term contracts and no cancellation fees, just a simple service agreement. We're family-run and licensed, with 30+ years in the business, and hablamos español. See our flea and tick control and pest control pages, or our guides.
No-pet flea questions
Can you have fleas without pets?
Why do I have fleas in my new house?
Will fleas go away on their own if there are no pets?
Do you remove the raccoon under my house?
Bitten with no pets in the house?
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