The aim of the article is to present a methodical approach to improving the safety of an educational institution, which was carried out in one of the schools in the Greater Poland Voivodeship. The entire school community was covered in ten sequentially implemented stages of the research process. The stimulus for the discussed undertaking was the author’s observation of the state of stagnation of activities related to safety. On the basis of a free interview with a group of teachers and on the basis of records maintained by the school regarding school safety, large discrepancies in the assessment of the state of affairs were indicated. The identified problems were related to the commonly signaled attitude of a lack of personal responsibility for common safety, mainly in the group of students. This initiated taking actions to improve safety with the use of interpersonal communication means. Since commitment is the key to success, emphasis was placed on the continuous improvement of the cooperation of all entities participating in the functioning of educational institutions, i.e. students, teaching staff, parents, administrative employees and technical employees, which is part of the organizational culture. In order to strengthen the effect of the communicated information related to the safety of the school community, guidelines were adopted in the selection of technical and organizational measures that strengthen the power of communication.