A leaking window frame must be repaired immediately

If a window frame becomes leaky, the damage must be rectified immediately in order to prevent serious consequential damage. The leak can only be limited to drafts or moisture and moisture can penetrate to the inside. In this case, however, a distinction must be made between condensation and penetrating moisture.


If there are leaking windows in your rental object, this entitles you to a rent reduction. In most cases, five to twenty percent are considered appropriate by the courts. If moisture enters and leads to water and mold damage, it can reduce up to fifty percent.
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