What Are Silverfish?

Have you noticed a cigar-shaped, silvery grey, crawling insect about 12mm to 20mm long running around your kitchen and bathroom areas?…

Yes? Well you may have the fascinating Silverfish as an addition to the household.

How to get rid of SilverfishSilverfish are generally not harmful to humans however they may trigger allergies in some. They may cause damage to our belongings however, especially those made of paper.

Here a few Silverfish facts…

  • Silverfish are one of Earths most ancient insects. They’ve been crawling around for more than 400 million years, predating the dinosaurs by 100 million years.
  • Silverfish are most active at night.
  • Their name is derived from fish-like movements and their silvery scales.
  • Surviving weeks without food or water, they just require a humid environment to live in (70 to 90% humidity).
  • Silverfish like damp humid areas, such as bathrooms, but may also be an indication of damp problems.
  • In the natural environment these interesting insects are important decomposers. However, in our homes and businesses they gain proteins, sugars and starches from sources such as newspapers, books, wallpaper and fabrics.
  • Adult females can produce between 2 and 20 eggs every day for up to 8 years. That’s nearly 60,000 eggs over her lifetime!


Silverfish can be introduced to your property in boxes from an infested property, and will roam quite far to find a suitable place to live. They will make good use of any food source and utilize any cracks and crevices for laying eggs or for hiding in throughout the day.


Signs of Silverfish…

  • The sighting of a Silverfish is usually the first indication of an issue. But, where there is one there will be more!
  • Yellow stains and/or faeces (very small black pellets) can may be found.
  • Feeding marks – holes or surface damage to fabrics and other food sources.

* Being nocturnal an infestation may go unnoticed for quite some time, allowing for the population to grow.

How to control Silverfish…

  • Firstly investigate and attempt to correct any persistent dampness (through sealing walls, maintaining pipework, heating the property, dehumidifier etc)
  • Seal all dry food (pasta, rice, flour etc) in airtight containers.
  • Try not to store anything against the side of the property as they are good climbers.

If you already have an infestation in your property, we would advise calling a professional pest controller. The products available to the general public will have a limited effect on the older life stages of the insect but will have no effect on the up and coming youngsters that are growing in the cracks and crevices of your property.

For more information or to get some advice on any pest control related issue please call the team 24/7.

Office – 0113 2037427 or 01423 209030

24/7 –  07970 902 194



BPCA Member