Pests become more active and visible during summertime, but their behaviour changes as winter approaches
Some go into hibernation, and others continue to reproduce before emerging in more significant numbers in the spring.
However, you should still be vigilant and cautious during winter as some pests like to dwell in your home before emerging later.
Here are some of the things that pests do during winter:
1) Migrate
Certain insects that thrive on seasonal plants must find new food and shelter for the winter. Therefore, they migrate to more favourable habitats before returning in the summer.
2) Hibernate
Rather than migrate, some pests hibernate instead. Your roof, chimney, and loft are excellent areas for hibernation as they’re warm and out of the way of humans, for a while at least.
Wasps are one such insect that hibernates in your loft and begins colonising in the spring.
3) Infest Your Home
Pests are just as eager to keep warm and dry in the winter months as we are. And your house is the ideal home for them too. Your loft, garage, cavity walls, and wardrobes are great places for pests to sleep, eat and breed.
4) Reproduce
Some pests reproduce in the winter to prepare for the spring season. However, as temperatures drop and the weather becomes harsh, some pests may not last the winter but will lay eggs that do survive. Moths are one such example and they can be troublesome in the spring when eggs begin to hatch.
Whilst the winter months provide us with some relief from several pest infestations; it also allows us to check for vulnerabilities in our home.
It’s a good time to seal cracks and holes in walls around the house or loft area, give the chimney a thorough sweep, and clean out the garage to deter pests in the future.
Frequently Asked Questions (FAQs)
What happens to pests during winter in the UK?
Many pests don’t disappear in winter. Instead, they either slow down, hibernate, migrate, or move indoors where it is warmer. Rodents like mice and rats often remain active all year and are more likely to enter homes during colder months.
Do insects die off in winter?
Some insects do die off after laying eggs in autumn, but many survive winter in different stages such as eggs, larvae, pupae, or dormant adults. These stages allow them to reappear again when temperatures rise in spring.
Where do insects go when it gets cold?
Insects typically shelter in protected areas like soil, leaf litter, under bark, sheds, wall gaps, or loft spaces. These micro-habitats help them avoid freezing temperatures and survive until conditions improve.
Why do I see fewer insects in winter?
Cold weather slows insect metabolism, making them less active and harder to spot. Many also hide in sheltered locations, so they are still present but not visible in the same numbers as during warmer months.
Do pests come inside homes in winter?
Yes. Many pests move indoors in winter to find warmth, food, and shelter. This is why rodents, spiders, and some insects are more commonly found in kitchens, lofts, garages, and wall voids during colder months.
How can I prevent winter pest problems?
Prevention focuses on sealing entry points, reducing clutter, storing food securely, and keeping outdoor areas tidy. These steps make it harder for pests to enter and settle inside properties during winter.
