Because you live next to a great deal of insect life. That is the whole explanation, and most of what follows from it is manageable.
Because there are more insects. Woodland edge, parkland and mature gardens support far more invertebrate life than a built-up area, and spiders go where the prey is.
Plus the autumn spike, which is annual and universal, and the outbuildings a larger property tends to have.
The spiders are a symptom of a healthy landscape. That is not much consolation at eleven at night in the bath, but it is the accurate explanation.
See our full spider control service, published room prices and our honest view on whether you need treatment.
View Spider Control Stanmore →The commonest single explanation for a sudden increase, anywhere.
| Description | Likely species | Concern |
|---|---|---|
| Large, long-legged, fast, on the floor in autumn | House spider (male, wandering) | None |
| Very long thin legs, tangled web in a ceiling corner | Cellar spider (daddy long-legs spider) | None — eats other spiders |
| Glossy dark body, cream markings, high in a corner or shed | False widow | Minimal |
| Small, jerky movements on a windowsill in sun | Zebra jumping spider | None |
| Large orb web outside a window in late summer | Garden spider | None, and outdoors |
| Large, in a garage, on a web sheet | House spider, resident | None |
| Very large, in an outbuilding near woodland | Possibly a cave or tegenaria species | None |
Established across southern England including this area. A bite is typically comparable to a wasp sting, they are not aggressive, and bites almost always follow handling or trapping against skin. Anyone with an unusual reaction should see a doctor.
If you are finding them in numbers in one area — usually a garage, shed or outbuilding — and want the population reduced, that is a reasonable use of a treatment. Finding one is not.
Not for the spiders themselves. It is worth a look at what is feeding them.
Insect availability, mostly. Proximity to green space is the difference.
It means you have insects. Whether they are a problem in themselves depends on which.
Wasps peak in the same weeks — nest treatment is £90 fixed cost in Stanmore, guaranteed for 30 days.
Because there are more insects. Woodland edge, parkland and mature gardens support far more invertebrate life, and spiders go where the prey is.
No. Spiders follow insects, not dirt.
External lighting. A light near a door or window draws insects all night, and the spiders set up where the insects gather.
Male house spiders mature in late summer and wander looking for females. It peaks in September and October.
It is unheated and undisturbed, an up-and-over door almost never seals, and stored boxes give ideal harbourage.
No. They fall into baths and cannot climb the glaze.
A bite is typically comparable to a wasp sting and they are not aggressive. Finding one is not a reason to treat.
Reducing external lighting, fitting brush strips, clearing webs regularly, tidying the garage, and cutting back planting touching the house.
Look at the outside lights first. That is the one thing most likely to change the numbers.
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