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Will freezing fleas kill them?
- By Leigha
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- December 12, 2025
Yes, freezing can kill fleas.
Freezing will fight an infestation as adult fleas, eggs, and larvae cannot survive prolonged exposure to temperatures below 0°C.
To be effective, the freezing needs to be cold enough (ideally –10°C/14°F or lower) and freezing for long enough (at least 48–72 hours).
What freezing doesn't reliably do
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Short-term freezing (like putting something in a freezer for only a few hours) may stun fleas but not kill all life stages.
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Flea eggs are somewhat resistant and may survive if the freezing period is too short.
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Freezing only works on items you can actually put in a freezer, not on fleas in carpets, pets, or the home environment.
Best things to freeze
Freezing is useful for:
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Soft toys
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Bedding items
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Small fabrics or objects you can seal in a bag
For treating fleas in your home or on pets
Freezing helps with specific items but is not a stand-alone solution. You still need to treat:
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Pets with vet-approved flea medication, like Itch Flea Treatment for Cats and Itch Flea Treatment for Dogs.
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Home vacuuming, washing bedding, and flea spray like Itch Flea House Spray.
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