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Pest Control Service

Rats and Mice

Image of a rat

How do I know if I have got mice or rats at my property? 

Evidence of unseen rats and mice may include scratching and scurrying noises in the roof etc. and the presence of chewed food, paper and droppings. 

Rat droppings are black torpedo shapes about 1 centimetre long, while mouse droppings are about 3 millimetres in size like small pieces of pencil lead. 

As rodents, they have to keep gnawing to wear continually growing incisor teeth down. Electrical insulation, foam pipe insulation and plastic water pipes are used for this purpose, which cause damage and serious risk to householders.

What might cause an infestation?

The most common reason for, rats and mice to venture into houses is that they are plentiful outside and the weather turns cooler so they move indoors. 

Outdoors a constant supply of food will attract them.  Another main cause is because wild birds are fed, or over fed, throughout the year.  

If feeding birds use the custom made bird feeders now available and avoid throwing waste food onto the ground where it will attract rodents.

How do they get in to my property?

In most building construction, mice have only to breach the outer wall to gain access to a cavity, that allows direct access to roof voids, voids between different floor levels, sink units, airing cupboards etc. i.e. almost anywhere in the building.

They may gain access to a cavity wall where the seal under the doorstep is incomplete, via air bricks, poor mortar joints and in fact anywhere that would allow a pen top to be poked through the cavity.

They can also climb external walls very rapidly, especially if rough or ivy covered to gain access under the eaves.  

Last Updated: 27-4-21

More information

  1. Pest Control Service
  2. Rats and Mice (you are here)
  3. Feeding the Birds