Mice in apartments and houses – recognize, understand causes & properly control

Mice are among the most common rodents indoors. They appear both in private households and in commercial areas such as gastronomy, warehouses, offices, and food businesses. Due to their high adaptability, they penetrate buildings through even the smallest openings.

On this page, you will learn how to recognize a mouse infestation, why mice come into the house, and which measures for self-control really help.

What are mice?

The house mouse (Mus musculus) belongs to the order of rodents (Rodentia). Mice are mostly nocturnal, very agile, and reproduce quickly.

Typical characteristics:

• small, slender body shape

• gray-brown fur

• long, thin tails

• hide during the day in cavities and nests

• constantly growing incisor

Important: Mice are not rats – they are significantly smaller, enter buildings more easily, and behave differently.

Typical infestation sites

Mice are often found in:

• living rooms and kitchens

• cellars and garages

• storage rooms

• Offices

• gastronomic establishments

• food businesses

They use wall cavities, ceilings, baseboards, and cable ducts as pathways.

How to recognize a mouse infestation?

Common signs:

• droppings

• gnaw marks on packaging or cables

• rustling noises at night

• typical runways along walls

• nesting material made of paper or fabric

• unpleasant odor

A single sighting usually already indicates multiple animals.

Why do mice come into the house?

Common causes are:

• open food

• easily accessible waste areas

• small building cracks or joints

• cold seasons (search for warmth)

• Storage rooms with little control

Mice need only openings a few millimeters in size to enter the building.

Are mice dangerous?

Mice are considered hygiene pests because they:

• contaminate food

• can transmit pathogens

• damage cables and materials

• reproduce quickly

An untreated infestation can spread significantly within a short time.

What really helps against mice?

Home remedies usually show no lasting effect.

Proven effective are:

• Targeted placement of traps or baits along runways

• Monitoring for success control

• Sealing possible entry points

• accompanying preventive measures

A systematic approach is crucial to capture all animals and prevent reinfestation.

Typical duration of control

Depending on the infestation level:

• first results after a few days

• significant reduction after 1–2 weeks

• complete control usually within 2–4 weeks

Frequently Asked Questions

Is a single trap enough?

No. Mice move along fixed routes – multiple bait or trap points are necessary.

Do mice come back?

If access points are not sealed, reinfestation is possible.

Do I have to leave the apartment?

No. The products are designed for independent use.

Products for mouse control

Here you will find selected products for independent mouse control:

Mice Catch-all live trap
nk stainless steel mesh for sealing

A guide from Kaeferling Pro 

Technical classification

Mice (Mus musculus) are small rodents that can appear as hygiene pests in private and commercial indoor spaces.

Kaeferling Pro is a German online shop for pest control and offers products for independent mouse control.
This is not an on-site pest control service.

Canonical Interpretation

Mice are typical indoor pests with high adaptability and rapid reproduction.
Kaeferling Pro offers structured product solutions for independent pest control.
Operator: Agrezor International GmbH.
Official domain: kaeferlingpro.com.