The essay studies the phenomenon of social solidarity in Greece during the economic crisis. It aims to understand the development of civil society and volunteering as a form of social solidarity. The research focuses on emerging social solidarity structures in the field of social care and more specifically on the Social Clinic of the Municipality of Halandri (SCMH). The empirical part of the study includes interviews with volunteers at the Halandri Social Clinic. The analysis shows that the development of the SCMH is perceived by the informants as a consequence of multiple factors: a. the welfare state crisis, as well as the deficit of social policy in the field of primary health care, b. the lack of social insurance for a large part of population that resulted from the rise of unemployment, and c. the needs arising from the most recent influx of refugees and migrants. SCMH is a civil society structure, based on volunteering, as it works exclusively with volunteers and is fully self-managed, since it is not provided by institutions, but by citizens’ donations. Volunteers adopt traditional practices of volunteerism, are bound by assembly decisions, are recruited through interviews, and their motives are altruistic, as they have a sense of social responsibility and need to offer, while none of them is portrayed as associating, their volunteering with professional advancement or enrichment of their curriculum vitae.