Get Rid Of Woodlice Problems | Woodlice, Woodlice Or Cheeselogs - PEST UK

Providing pest control services in Berkshire, Buckinghamshire, Essex, Hampshire, Hertfordshire, London, Northamptonshire, Oxfordshire, Surrey, West Midlands, West Sussex, Wiltshire. Est. 1985.

PEST UK / Pests / Get Rid Of Woodlice Problems | Woodlice, Woodlice Or Cheeselogs

Get Rid Of Woodlice Problems | Woodlice, Woodlice Or Cheeselogs

Woodlice are more a nuisance than a health hazard. They are related to the crab family and will only survive in humid conditions. This can but not necessarily indicate a damp problem. Cavity walls can be humid but this does not mean there is a damp problem from a structural point of view. Woodlice favour damp conditions and feed off decaying vegetable matter, dead insects, fungi etc. They do not cause structural damage. The infestation always originates from outside, Woodlice wander in usually at night, they are excellent climbers & will often come into houses via the chimney or through cavity walls.

Why Should They Be Treated?

Some people don’t like these types of creatures and the bodies can look unsightly. If Woodlice wander into areas that are not humid for them to survive they will often die.

Preparation Before Treatment

Insecticides will only work on clean surfaces so the areas that you see the Woodlice as well as under standing furniture and the edges of the rooms need to be vacuumed thoroughly. Woodlice generally come out from behind and under skirting boards, under doors or chimneys. Remove any possible harbourages from the area immediately outside the house, ie piles of logs, paving slabs, vegetation close to the house, loose bricks & other debris. If dampness is a problem heat those area thoroughly or use a de humidifier. Meshing over air bricks with a fine mesh will prevent them accessing the house this way.


We will apply a residual insecticide to the infested and surrounding areas with one or more of the following insecticides (the technician will explain what & where this has been applied): Effect Microtech CS, Ficam W or K-Othrine. We also use 2 types of powder, one an insecticide called Ficam D & the other a non toxic desiccant called Killerid (this is completely non toxic & works for scratching the insects body so it dehydrates). All insecticides are biodegradable, almost odourless, non tainting & do not corrode or stain. They are not highly toxic towards mammals but are extremely so to all forms of crawling and flying public health pests. Insecticide treatments will only work on clean surfaces.

What Do I Do Afterwards?

After treatment do not let domestic animals walk on treated surfaces until dry and if bare skin comes into contact whilst wet then wash. Do not vacuum the carpeted areas that have been treated for at least two weeks or longer if the room(s) are at low temperature or live and/or dead Woodlice are still being seen. As long as the surfaces that have been treated are not washed or vacuumed the insecticide will remain active for up to 3 months. So do not vacuum, wipe or wash treated areas until a week after the infestation has finished (once live or dead Woodlice are no longer seen). If dampness persists then further treatments may be necessary as insecticide treatment may only be a temporary solution. Insecticide treatment will kill woodlice. This does not mean that no more woodlice will be seen after the treatment.


As ‘new’ Woodlice will constantly be entering the house complete eradication is not usually possible but the treatment will drastically reduce numbers. In some cases one spray should be sufficient to deal with the problem but depending on environmental conditions the premises will need treating on a regular basis. Berkshire Pest Control Ltd t/a PEST UK Terms & Conditions apply.

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