Springtime Spiders: Understanding the Seasonal Surge in UK Homes

By Roisin Clausen7 min readApr 2025
Spider Web

As the days grow longer and temperatures begin to rise, many of us in the UK begin to notice an uptick in the number of house spiders scuttling across our floors and walls.

While it's widely recognised that "spider season" peaks in autumn, it's not uncommon to encounter these eight-legged visitors during spring. Let's delve into the reasons behind this seasonal behaviour and explore effective pest control measures to keep your home spider-free.

Autumn: The Traditional Spider Season

Autumn is typically associated with increased spider activity indoors. This surge is primarily due to male spiders venturing out in search of mates. As they roam, they often find their way into our homes, leading to more frequent sightings. The cooler outdoor temperatures also drive spiders to seek the warmth and shelter that our homes provide. ​So, what attracts house spiders?

Ant Inspection
Spider Web
Insect Inspection
Ant Inspection

Springtime Sightings: What's Going On?

While autumn sees a pronounced spike in spider activity, spring also brings about conditions that can lead to increased indoor sightings:​

  • Emergence from Dormancy: During winter, many spiders enter a state of reduced activity or seek secluded spots to lay dormancy while it's too cold to be outside. With the arrival of spring, they become more active, leading to increased encounters within your space.
  • Indoor Breeding: Some spider species may have laid eggs in hidden corners of our properties during the previous seasons. As temperatures rise, these eggs hatch, leading to a sudden increase in the spider population indoors.
  • Attraction to Prey: Warmer weather also means an increase in other household pests like flies and ants. Spiders follow their food sources, so an abundance of prey can draw them into our spaces.

Effective Pest Control Measures

To manage and reduce the presence of spiders in your home during spring (and throughout the year), consider the following strategies:

  • Seal Entry Points: Regularly inspect your home for cracks, gaps and opening, especially around windows, doors and foundations. Sealing these can prevent spiders and other pests from gaining entry.
  • Maintain Cleanliness: Regular cleaning reduces the number of hiding spots for spiders and eliminates other pests that serve as their food source. Pay special attention to seldom-used areas like basements, attics and storage rooms.
  • Use Natural Repellents: Certain scents are known to deter spiders. Essential oils like peppermint, tea tree, and eucalyptus can be diluted with water and sprayed around the home. Additionally, a mixture of white vinegar and water can be effective when applied to crevices and corners.
  • Limit Outdoor Lighting: Insects are attracted to light, and spiders are attracted to insects. By reducing excessive outdoor lighting or using yellow citronella candles as an alternative, you can decrease the number of insects - and consequently spiders.
  • Consult Professionals: If spider infestations become unmanageable, seeking assistance from professional pest control services is advisable. They can provide targeted treatments and offer advice tailored to your specific situation.

Nature's Pest Controllers


While scary looking spiders actually play a crucial role in the ecosystem—essentially making them nature’s own pest control experts. These hunters help keep the population of insects like flies, mosquitoes, aphids, and even crop-damaging pests in check.

What attracts spiders is the endless bugs that turn up as the weather warms up. Without spiders, we’d see a massive boom in insect numbers, which could affect agriculture, spread more disease, and throw the natural balance off completely. It’s estimated that spiders collectively eat hundreds of millions of insects every year worldwide. So, while they might not pay rent, the pest control service they provide is priceless.

Spider Image
House Spider
Spider

Conclusion

While “Spider Season” is technically in Autumn, due to them being out of sight for so long through the winter months, it is not uncommon to see an uprising as the temperatures warm up and they start to come out hiding.

By understanding their behaviours and implementing effective pest control measures, you can ensure a comfortable and spider-free environment throughout the year.

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