What to do in the event of mould? A guide for tenants and landlords

Welcome to the blog of Hochheiden Hausverwaltung, your trusted partner for property management. Mould in the home is not only an aesthetic problem, but can also pose health risks and damage the fabric of the building. Both tenants and landlords are often faced with the question: what to do in the event of mould infestation? In this article, we would like to provide you with a comprehensive guide on how to effectively combat mould and prevent future infestations.

First steps in the event of mould infestation

  • Recognition and documentation: First identify the extent and location of the mould infestation. Document the infestation with photos and make a note of how long the mould has been present and whether there are any possible causes such as water leaks

  • Cause research: Mould growth often has to do with moisture. Look for causes such as leaks, condensation due to a lack of ventilation or heating or structural problems that favour moisture

  • Communication: Tenants should report mould infestation to the landlord immediately. Quick communication can prevent further damage and is often the first step towards solving the problem

Responsibilities and measures

  • Tenant obligations: Tenants are obliged to use the flat properly. This includes preventing the build-up of moisture and thus mould growth through regular ventilation and heating. In the event of mould infestation due to incorrect living behaviour, the responsibility lies with the tenant

  • Landlord obligations: If the cause of the mould infestation lies in the building fabric or in defective construction work, the landlord is required to rectify the damage. The landlord is also obliged to maintain the flat in a condition suitable for use in accordance with the contract.

  • Professional mould control: In the event of extensive or recurring mould infestation, it is essential to consult a specialist. Specialised companies can not only remove the mould, but also offer permanent solutions to prevent new infestations

Prevention: Prevent mould growth

  • Ventilate regularly: Airing the room several times a day helps to regulate the humidity and prevent moisture build-up

  • Correct heating: A basic level of heat should also be maintained in rooms that are rarely used in order to avoid condensation points

  • Check humidity: Make sure to directly remove moisture caused by everyday activities such as cooking, showering or drying laundry


Mould infestation in the home requires quick action and a cooperative solution between tenants and landlords. Mould can be effectively combated and avoided through preventative measures and an appropriate response at the first signs. Hochheiden property management is on hand with advice and assistance to address mould problems professionally and ensure the quality of your home in the long term.

Are you struggling with mould infestation or do you need support with property management? Contact us - we will be happy to help you ensure a healthy and safe living environment.