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How To Control Spiders

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Spider Control Advice

Spiders can cause fear to many people and dealing with them can be difficult.

You can choose which products suit your particular problem or call us for advice.

Here is some information and advice about dealing with a Spider infestation.

In this article

The Spider problem

Many homes suffer from spider invasion and for some, this can be rather distressing.

Spiders enter the home through a variety of holes, cracks and crevices and once in, they can survive and breed quite happily.

Entry points include cavity wall vents, door and window frames, under roof soffits and around poorly sealed pipework.

Once in spiders will tend to be located around the ceiling/wall junctions and the wall/floor junctions, behind furniture and fittings and particularly in the roof void.

Spiders are to some extent beneficial in the home by removing some flies but their webs and faeces can become unsightly.

Spider prevention.

Spiders are a little difficult to deal with as they hide in inaccessible places.

If you can reduce the numbers getting into your building, this will significantly improve the situation.

Mousemesh Air Vent Cover

1. Firstly, fit mesh vents to all air bricks on the property.

2. Seal carefully around window and door frames plus all cable and pipe entry points.

3. Seal the soffit/wall junction below the gutters.

4. Fit draught excluders to all doors to ensure there are no gaps for spiders to enter.

5. Seal around downlighters, particularly those that penetrate into the roof void from the ceiling.

6. Remove all vegetation that is growing against the property. best to remove up to 1 metre from the building walls if possible.

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Spider Control treatment

Great care needs to be taken when treating spiders in the home as, because they tend to live at high levels, the application of insecticides may expose you to the products, so wear good protective clothing when spraying or applying dust above waist level.

Spider Control Products

You may choose to take our Spider Control Pack to effect a comprehensive and safe solution to the problem.



1.Firstly you should deal with the external areas by removing vegetation that is growing up against the house, preferably trim back to 1 metre from the walls of the house. Cut back any trees that overhang the house.

2.Apply Dethlac Insect Lacquer around door and window frames, pipe and service cable entry points, air bricks and if possible, under the eaves where the soffit board abutts the wall of the house.

A 3-6inch (75-150mm) band is suitable.

Dethac Spider Killer Aerosol

Beware of applying Dethlac to UPVC, it may stain

3.ApplyRentokil Ant and Crawling Insect Killer Powderto the bases of walls around the total perimeter of the house, this can also be puffed into strong growing bushes that are near the house, fragile bushes may be damaged by the dust. Use sparingly as very little is required to control spiders.

Rentokil Spider Killer Powder




Spiderex Spider Killer Spray

4.Spray Spiderex Spider Killer Aerosol  onto surfaces around windows and doors, ceiling wall junctions and wall floor junctions in areas where spiders are usually encountered.

This product claims extended life in use and we would guess that you will need to re-apply every few months in order to maintain a spider free environment.

Spider trap

5. Install Rentokil Spider Traps to areas where spiders are known to frequent.

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