Young migrants defined as ‘unaccompanied’ tend to be constructed as a homogeneous group with specific vulnerabilities and strengths in social work practice. ‘Unaccompanied’ young migrants placed in kinship care in Sweden are constructed with further vulnerabilities. Such constructions of these young people and their situations may have consequences for how social support for them is designed. The aim of this study is to explore how the social workers employed at a non-governmental organisation mentoring programme construct young migrants’ situations in kinship care in a Swedish suburb, and if and how these constructions change during the course of the programme. Methods used are semi-structured interviews with the social workers at the youth centre where the mentoring work takes place and analysis of the non-governmental organisation’s policy documents. The results consist of three constructions of situations the young people are in: (1) loneliness and (a lack of) support in the kinship homes; (2) alienation in the local neighbourhood and the kinship home and (3) social, cultural and family contexts creating a sense of safety. The results show variation in how the mentors describe each situation with both vulnerabilities and strengths. This highlights a complexity in the constructions that contests the image of young migrants in kinship care as merely vulnerable. These results reveal consideration of individual differences and contexts, and are used to discuss how people’s struggles and resources can be dealt with in social work.