Professional distance and the parallel concept of models of practice reliant on professional objectivity have been major platforms in professional education. In social work, these ideas are often seen as contentious, unreasonable and, in some cases, unrealistic. Radical, feminist and rural social work approaches, for example, suggest that the expert role is not only inappropriate, but can be counter-productive and disrespectful of the people with whom we work. Postmodern approaches call for a deconstruction of professionalism in favour of context-specific partnerships between worker and client. How can workers ensure good, professional practice within a more flexible approach to professional distance and expertise? What are the issues and how may they be resolved? Are the boundaries of the professional relationship elastic and, if so, what are the consequences for practice and the individual worker? The present article explores the notion of flexible, elastic boundaries using literature and research from radical, postmodern, feminist and rural social work approaches.