Marten in the Attic: Recognising Signs and Taking the Right Steps

Is it really a marten in the attic?

If you hear thumping or scratching above the ceiling, you may suspect a marten. Sounds alone, however, are not enough to identify the animal with certainty. Other animals also use roof spaces. The Baden-Württemberg state portal, for example, describes the nocturnal edible dormouse. First establish which animal is in the building. Edible dormouse species profile.

Stone martens are mainly active at night. In an occupied roof space, you may notice droppings, urine or prey remains as well as sounds. These observations can help with an assessment, but they do not replace identification by someone with the relevant expertise. Ostalbkreis district information on stone martens (PDF).

Useful observations to share when seeking advice

• Timing: When do you hear something, and does it recur?
• Location: Does the sound always come from the same part of the roof?
• Signs: Are there droppings, material remnants or visible damage?
• Sightings: Have you seen an animal or noticed a possible access point?

Write down your observations and, if you can do so safely, take photographs from a distance. An audio recording or a photograph of droppings can add to your description; neither provides a conclusive identification from a distance.

How does a marten get into a house?

Distinguish the route up to the roof from the opening used to enter it. The Berlin Senate Department lists damaged roof windows, loose roof tiles and openings in masonry among possible entry points. Nearby trees or neighbouring buildings can also play a part. A single conspicuous spot therefore does not automatically explain the entire access route. Official guidance on stone martens around buildings.

Have possible entry points and climbing routes checked across the whole building. Roof areas that are difficult to reach should be inspected by someone with the appropriate expertise. Record which places are actually open and which are only possible routes. This helps you plan a targeted structural measure.

Secure access without trapping animals inside

Before closing an opening, you must establish that: No animals will be trapped inside and no young will be separated from their mother. A quiet attic or a single night without sounds is not reliable evidence of this.

The Berlin-Lichtenberg district office explicitly advises taking account of any animals and young present before excluding them. If it is unclear whether the space is occupied, or if you suspect young animals, agree the next steps with a knowledgeable advisory service. Do not treat any particular calendar month as a blanket go-ahead to close openings. Guidance from the Lichtenberg district office.

Handle droppings and contaminated areas carefully

Keep children and pets away from animal waste. When removing it, Ostalbkreis district recommends a protective mask, disposable gloves and safety glasses, careful collection, and washing hands and clothing afterwards. If insulation is heavily contaminated or the situation is unclear, seek expert advice on how to arrange cleaning. Hygiene guidance in the official information sheet (PDF).

Which measure suits the actual access route?

The key is the route the animal uses. The Baden-Württemberg wildlife portal describes securing access points as an important approach and notes that animals can become accustomed to disturbances. Sounds or scent products therefore cannot be assumed to offer a reliable solution for every building. Stone martens in built-up areas: Baden-Württemberg wildlife portal.

A downpipe barrier has a specific purpose

If a suitable downpipe has been identified as a climbing route, you can consider a barrier designed for it. The Martenbrown marten barrier for downpipes is specified for a pipe diameter of 100 mm. It is made from hot-dip galvanised steel and fastened with a wing screw. Check the diameter, available space and installation conditions against the product information.

The measuring and selection guide for the downpipe guard explains how to check the pipe diameter and available space.

A barrier on one pipe does not automatically secure other routes via trees, parts of the building or neighbouring buildings. Nor does it replace establishing whether animals are already inside the roof space. First assess the situation around your house, then compare the appropriate product design.

Attractants and traps do not secure structural access points

Attractants and accessories have different purposes from a climbing barrier. An attractant is intended to attract animals and should not be confused with a product intended to keep them away. The overview of live capture traps and accessories is also a product comparison; it does not replace checking whether trapping is permitted and appropriate in your case.

Who can help with a marten in the house?

Contact your local wildlife advisory service or the responsible authority. Describe your observations, the part of the building concerned and possible access routes. Ask who can assess the species and whether the space is occupied, and what the next steps are in your area.

Regional example: Konstanz district, Germany: The district administration provides information on wildlife advice, urban hunting and the responsibilities of the local hunting authority. Responsibilities may be organised differently elsewhere. Advice and responsibilities at the Konstanz district administration.

Do not assume that owning land or a live capture trap gives you permission to trap an animal. Before any trapping takes place, check with the responsible authority whether it is permitted and who is authorised to carry it out.

Frequently asked questions about martens around the house

Do night-time sounds prove there is a marten in the roof?

No. Other animals are also active at night and use roof spaces. Sounds and signs are clues. The species should be identified before choosing a measure.

Can I close a hole as soon as I find it?

You must first establish that no animals will be trapped inside and no young will be separated from their mother. If occupancy is unclear, the next step is an expert assessment.

Does a downpipe barrier protect the whole house?

It is intended for a specific climbing route. Other access points and suitability for the particular pipe must be checked separately. The Martenbrown model specifies a pipe diameter of 100 mm.

Is marten attractant suitable for keeping martens away?

Attractants are intended to attract animals. Securing access to a building depends on identifying the actual route and using a measure designed for that route.

Am I allowed to catch a marten myself with a live capture trap?

Buying a trap does not, in itself, establish permission. Check the requirements and who is authorised to carry out trapping with the responsible local authority beforehand.