This study aims to investigate whether the experiences of teachers in general education and vocational education differ because of differences in their working contexts and challenges. It also focuses the ways in which mentees perceive the results of peer-group mentoring (PGM) with regard the professional, personal and social dimensions of professional development. The findings reveal that the participants almost unanimously agreed that PGM is important throughout the entire teaching career. Furthermore, the findings show that there were few significant differences between the teacher groups. It was found that teachers in vocational education were more likely to agree that participation in PGM had influenced their working methods, as compared to their colleagues in general education. In addition, the results reveal that teachers in vocational education reported that they had been contacted more by their colleagues about their opinions and advice after participating in PGM meetings than had previously been the case.