Ah, the British winter. Crisp mornings, cosy nights by the fire… and the lingering question: do bed bugs feel the chill too?
It’s a common misconception that bed bugs simply freeze off when temperatures plummet. While they certainly prefer the warmth, these hardy critters are more resilient than you might think. Let’s unpack the truth about bed bugs and cold weather, along with some other common queries.

Do bed bugs die in the cold?
Not necessarily. While bed bugs thrive in temperatures around 21-32°C (70-90°F), they can survive for a surprising amount of time in colder conditions. They may enter a state of dormancy, slowing down their metabolism and essentially “hibernating” until temperatures rise again.
Think of it like this: they’re not exactly throwing a party in your bed during a blizzard, but they’re not packing their bags and leaving either.
Can I freeze bed bugs to get rid of them?
Freezing can be an effective way to kill bed bugs, but it requires very specific conditions. Simply putting infested items in a domestic freezer might not do the trick. To effectively eliminate bed bugs through freezing, you need to:
- Reach the right temperature: -18°C (0°F) is generally recommended.
- Maintain the temperature: Keep items at this temperature for at least four days.
- Ensure penetration: Cold air needs to reach all parts of the infested item.
This can be tricky to achieve reliably at home, which is why professional heat treatments are often a more effective solution.

How do I know if I have bed bugs in winter?
The telltale signs of a bed bug infestation remain the same, regardless of the season:
- Bites: Itchy red welts, often in clusters or lines.
- Bloodstains: Small reddish-brown spots on bedding.
- Dark spots: Bed bug faecal matter, which looks like tiny black dots.
- Shed skins: Bed bugs shed their skins as they grow.
- Live bed bugs: Small, flat, reddish-brown insects.
What should I do if I think I have bed bugs?
Don’t panic! Bed bugs are a common problem, and effective solutions are available. The most important thing is to act quickly to prevent the infestation from spreading.
Contact Rentokil immediately for expert advice and treatment. Our qualified pest control surveyors will conduct a thorough inspection to confirm the presence of bed bugs and recommend the most appropriate solution for your needs.
Rentokil: Your Partner in Pest Control, Whatever the Weather
With 100 years of experience, Rentokil is the trusted name in pest control. We understand the unique challenges of dealing with bed bugs, and we offer a range of effective solutions to eliminate these pests and protect your home.
Don’t let bed bugs ruin your sleep, no matter the season. Contact Rentokil today for a free quote and reclaim your peace of mind.