How can one proceed against rats and mice?

There are a few steps you can take to keep rats and mice away.

Rats, as well as mice, prefer locations that are not often visited by humans. These include, for example, basements and attics.

Carefully examine the area around your home or business for signs of rats and mice. Mice like to set up their nesting places near their food sources, for example, in kitchens (e.g. in stoves, refrigerators and furniture). Rats are commonly found in compost heaps, sewers, and elevator shafts.

Blocking the entry and access routes of rats and mice

Use the following options to make all entrances to the building inaccessible to rats and mice:

  • Closing all possible access routes in the basement and attic
  • Walling up wall openings
  • Sealing off unused drainage holes/pipes
  • Securing windows with close-meshed nets


Warning: mice can gnaw their way through the wood, sheet aluminium, lead and copper pipes and plastic! Eliminate or block any holes, cracks, and crevices 5mm or more than mice enter buildings, rooms, or equipment through. Mice can enlarge openings in many materials by gnawing the edges. However, they find it challenging to chew holes in smooth surfaces.

  • Use fillings made of fireproof and durable materials such as cement or metal.
  • Holes can be covered with wire mesh or steel wire or filled with sealant, cement or fine steel wire.
  • All ventilation and duct openings should be covered or raised and sealed to prevent mice from entering.

If mice are already present in walls, on the floor or in other cavities in your home, they must be caught before the access points are closed. Otherwise, there is a risk of putrefaction, attracting insects and leading to odour and stains. If the catch doesn’t work, slide a poison bait into the cavity to kill the mouse.


Never throw leftover food down the toilet to prevent rats from entering through the toilet drain. Also, permanently close the lid after using the bathroom. For absolute security, flaps can be installed that only open in one direction. This allows the dirty water to run off but prevents rats from entering from the other direction.

Removing food sources from rats and mice

Rats and mice can only survive indoors if food is available. As a first measure, they must be denied access to any food. Move food away from places it can reach. This includes leftover food in bags and buckets and debris accumulated behind cabinets and household appliances such as stoves and refrigerators. Rats and mice only need small amounts of food to survive. Therefore, any part of food left behind must be removed.

  • Store food, birdseed and pet food in containers made of metal, sturdy plastic, glass or ceramic with tightly fitting lids.
  • Do not leave pet food open and clean your pets’ food bowls after feeding.
  • Do not store food on the floor and remove trash and potential nesting materials such as paper and cardboard boxes.
  • Pack trash in metal or sturdy plastic bins with tight-fitting lids.
  • Do not put leftover food and animal waste on the household compost.

Do you want to take action against rats and mice? Then follow the tips above and protect yourself, your family and your company from a rodent infestation!