How Do You Reduce Persistent Spiders in a Wealdstone Property?

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Step 1: Cut the Food Supply

This is the one people skip, and it is the one that works. Spiders live where there are insects.

• External lighting — a light near a window draws insects all night and spiders follow. Move it, dim it, put it on a sensor, or switch to a warmer bulb
• Bins and communal refuse — a bin store generating flies feeds every spider near it
• Damp in a basement, ground-floor flat or riser supports silverfish and other insects
• Standing water outside a window — a blocked gully or a saucer under a planter
• Fly screens on windows you keep open in summer

Step 2: Close the Gaps

• Fill gaps around pipe and cable entries
• Seal gaps in and around window and door frames
• Fit brush strips to doors with a visible gap underneath
• Check the seals on a balcony or patio door
• Check where a soil pipe or extract duct passes through a wall
• In a converted property, check gaps around a boxed-in riser or old chimney breast

A flat has fewer routes than a house, which is why upper floors generally have fewer spiders. If you are on an upper floor with a real problem, the route is worth finding — it is usually one specific gap.

Step 3: Clear the Webs

• Vacuum or brush webs down wherever you find them
• Include ceiling corners, behind and under furniture, window reveals and light fittings
• Check cupboards, a store, a riser cupboard and any communal area you are responsible for
• Do it regularly rather than once — a cleared corner is less likely to be rebuilt in
• Remove egg sacs at the same time

Step 4: Reduce the Harbourage

• Move stored boxes off the floor and away from walls
• Use sealed plastic boxes rather than cardboard
• Do not store items against a cold external wall
• Keep a balcony clear of stacked pots and stored items
• Cut back planting that touches a window or balcony rail

What Does Not Work

• Conkers. Folklore, tested, no effect
• Ultrasonic repellers. No credible evidence against spiders or anything else
• Peppermint or citrus sprays. Brief at best; the smell fades long before the spider does
• Vacuuming spiders only. Fine as a response, does nothing about why they are there
• Supermarket sprays alone, with the insect source untouched

The Autumn Spike

September and October: male house spiders leave their webs and wander looking for females. Bigger, faster, and in rooms where you never see them otherwise.

• It is annual and it passes within weeks
• They are not coming in from outside in the sense people imagine — most were already in the building
• A glass and a piece of card is the standard removal method
• Baths and sinks catch them because they cannot climb the glaze, not because of the drains
• It is not a sign anything is wrong

Read nextLots of Spiders in a Wealdstone Flat – What Does It Actually Mean? →

When to Pay for Treatment

• Genuine phobia affecting how you use your home
• Webbing that keeps returning after repeated clearance
• A commercial property where webbing is visible or fails an audit
• A garage, store or communal area with heavy persistent webbing
• False widows in numbers in one area

False Widows

Established across southern England including this area. Glossy dark body, cream markings, usually found high in corners, in sheds and garages, and around window frames.

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. Nothing in the UK is medically dangerous in the way the newspapers imply.

Related Questions

Do spiders come up through drains?

No. They fall into baths and cannot climb out.

Should I kill them?

Your call, but they eat flies, mosquitoes and other insects. Removing them removes an insect control you were getting free.

Will treatment stop them completely?

No. It reduces numbers. Spiders are less susceptible to residual treatment than most insects.