In the context of debates about the epistemological and ontological coherence of concepts of critical urban studies, we argue that urban concepts should be conceptualized problematically. We do so by aligning Michel Foucault's genealogical work on problematization with John Dewey's pragmatist understanding of problem formation and responsiveness. This approach brings into view the degree to which debates about urban futures are shaped by a variety of critical perspectives that extend beyond the academy and activism. We elaborate this argument through examples of global urban policy formation and practices of neighbourhood change. Approaching urban concepts problematically suggests a move away from the idea of critique as a form of scholastic correction towards an appreciation of the contested fields of practice in and through which critical understandings of urban problems emerge.