**Abstract**

This chapter is focused upon social work with single and non-resident fathers. There is a dearth of social work research that explores the experiences of single or non-resident fathers' with social work, so this chapter starts to explore how we can work more sensitively and collaboratively with both groups. Both single and non-resident fatherhood raise challenges for socially constructed gendered norms, hegemonic masculinity and how children and families social work is practiced. Concepts of borderwork and the emotional regime are applied to develop understanding of these fathers' experiences with social work and how practice can change. The chapter is located within wider discourses about the feminised role of caring and increasingly bureaucratic and authoritarian social work systems. Key practice features of assessment and engagement are discussed and suggestions for developing and improving practice are tentatively made.

**Keywords:** single fathers, non-resident fathers, social work practice, borderwork, assessment, engagement
