This volume explores issues of repair, maintenance, sustenance, and adaptation within the context of interior design and its histories. The contributions to this volume celebrate critical analysis of past and present work as well as potentials for upkeeping the built environment, sustaining our histories and cultures, and maintaining our shared resources as we face radical shifts in the ways in which we inhabit the various spaces where we work, live, convene, cross, and connect. Chapters recognize the ways in which the interior has defined, reinforced, hidden, and protected servitude and repair. They offer an appreciation of the role of interiors to extend the lives of our architectures and the human interactions they sustain. Expert and emerging contributing authors explore varied topics such as Dalit cleaning as a practice of decolonial interior architecture, responses to pest invasion, cultural attitudes toward age, wear and waste, and creative repair, among many others. This will be of great interest to all students and academics of interior design, as well as architecture, architectural conservation, visual culture, history of art, and all those interested in the theory and philosophy of the reuse of interiors.