This paper seeks to reconstruct the specific experiences that strengthen or erode the commitment of volunteers in the welfare sector. The empirical basis is narrative interviews with volunteers who have withdrawn from their role at a welfare organisation in Germany. The findings show tensions: on the one hand, experiences of successful relationships with clients and fellow volunteers strengthen volunteers’ commitment. On the other hand, volunteers observe practices and approaches that run counter to their values. This tension between engaging and disengaging experiences arises from the welfare sector itself, for while care can enable close interpersonal experiences, it is also shaped by economisation. Overall, our study shows that the motivations underlying volunteers’ long-term commitment can be both strengthened and undermined by actual volunteering experiences. In the light of our findings, we present heuristics for understanding volunteering processes that focus on field-specific experiences and tensions.