
A big house has rooms and spaces nobody walks through from one month to the next: the garage, the box room over the front door, the cupboards behind a loft conversion, a cellar where there is one. Spiders need somewhere still, somewhere sheltered and something to eat, and a house with a long, well-planted garden supplies all three.
If a room fills with webs again within a fortnight of being cleared, book a spider treatment: £180 for the first room, £60 for every room after it. Call 0800 955 2347.

Two things decide how many spiders a place holds: how much there is to catch, and how seldom anything disturbs the web. A generous house is generous with both. The garage keeps its corners, the box room keeps its suitcases, and stored cardboard is the worst offender of all — it holds its shape, leaves gaps behind and between the boxes, and is almost never moved. Webs are not a verdict on housekeeping; they are a map of where small flying insects pass often enough to be worth ambushing. What attracts spiders into a property explains why the food supply matters more than anything you can scrub.
Where a loft has been turned into a room, the leftover triangle under the slope usually ends up as a storage cupboard with a small door in the new wall. It is unheated, unlit and full of things that will not be looked at again for years, and insects drift into it from the roof edge all summer. The same goes for the boarded part of a loft that is still a loft. Why spiders gather in lofts covers the roof space properly, and where spiders hide inside homes is the place to start looking downstairs.
An attached garage gets the traffic of a doorway and the stillness of a store room at the same time, which is an unusually good combination for a web. A shed at the bottom of the garden is the outdoor version. A few of these houses have a cellar under the front room, reached by a door beside the stairs, and it stays cool and dim the year round with nobody in it — webs gather on the joists overhead, behind the meter and across whatever is leaning on the walls.

The noble false widow is glossy and dark, with a rounded body and pale markings across the back, and it favours precisely what these houses offer: the gap beside an old timber window frame, the underside of a deep sill, the back of a porch light, the corner of a shed. It is not regarded as a dangerous spider and being bitten is an uncommon event; where it happens the feeling is generally likened to a bee or wasp sting. Speak to a pharmacist or GP about a bite that swells badly or looks infected, and call 999 for signs of a severe allergic reaction after any bite or sting. Whether any spider here can genuinely hurt you puts the risk in proportion.

From late August the adult male house spiders leave the gaps they have spent the year in and go looking for a female, which is why one crosses the landing at eleven at night or sits in the bath at breakfast. They are not building, they have not moved in, and in a house with a garden this size a few of them over an autumn is simply the season. The pattern worth acting on looks quite different: webs, egg sacs and shed skins returning to the same room week after week whatever you do about them. Why spiders keep appearing in the same rooms draws that line, and why there seem to be so many at once explains the seasonal swing.
Treatment is aimed at rooms inside your own property where the numbers keep building, and it can bring those numbers down. It cannot cut a house off from a long garden full of insects, and nobody should promise you a spider-free home. What pest control can do about spiders is honest about the limits, while reducing spiders around windows and doors covers the part that is yours to do.
It is also worth asking what they are living on indoors. A room where small insects are breeding will hold spiders all year, so if there are also larvae or damage in the floor coverings it is worth ruling out carpet beetles and carpet moths at the same time. Whether lots of spiders mean another pest problem is the guide for that question.
Spiders from the garden will still wander in afterwards, particularly in autumn. If the treated rooms start filling with webs up again, ring and say which ones.
Over a year, what you store where and how much light you throw out into the garden count for more than anything else. How to stop spiders coming back goes further, Spider Control Brent covers homes across the borough, and the houses in neighbouring Cricklewood have the same quiet corners.
Spider treatment in Dollis Hill is £180 for the first room and £60 for each additional room, so a garage and the box room above it come to £240. Halls, landings and stairs are not counted, however many webs are on them; a cellar, an eaves cupboard or an attached garage used as part of your own home is counted like any other room. What you pay for is treating the rooms you name, and we explain what happens on the day when you ring.
| Treatment | Price |
|---|---|
| Spiders – First Room | £180 |
| Spiders – Additional Room | £60 |
It often is, provided you use the space and the webs come straight back after every clear-out. On its own a garage is priced as the first room, £180. Move stored boxes off the walls beforehand and say whether there is a door straight into the house.
It may well be: look for a rounded, glossy body with pale markings across the top of it. The species is not classed as dangerous and being bitten by one is unusual. Attach a photograph to your enquiry, and take any bite that worsens instead of settling to a pharmacist or GP.
Usually not for that alone. Those are mature males roaming for a mate rather than settling, and a few each autumn in a house with a big garden is ordinary. What justifies a visit is one room webbing up again and again, egg sacs and all.
Tell us the layout and we will agree it before you book. A walk-in eaves store used with the room is generally counted with it, while a separate boarded loft is counted in its own right. Either way, booking a spider treatment starts with a list of the spaces involved.
No. Anyone who tells you otherwise is overselling it. Mature trees, hedges and planting go on producing insects and the spiders that hunt them. Indoors a treatment brings the build-up down; outdoors it is clearing webs and cutting back the lighting that counts.
Every room inside your own flat where webs keep returning counts: £180 for the first and £60 for each one after it. The communal hall, the stairs and your own landing stay out of the count. Describe the layout when you ring and the number is settled before you book.
Sometimes. Spiders stay where they can feed, so a room with small insects breeding in the fabrics or the stored clothes will hold more of them. It is worth checking the floor coverings and the wardrobes before deciding the spiders are the whole story.





















List the rooms where the webs keep returning, say whether a garage, cellar, eaves cupboard or shed is involved, and give us your NW2 or NW10 postcode. The borough-wide page is Spider Control Brent, and Pest Control Dollis Hill lists our other services here.
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