Foregrounding the role of finance, this article examines the historical production and future trajectory of the urban water crisis in Mombasa. Drawing on archival research and contemporary fieldwork, it traces how principles of full cost recovery—institutionalized during the colonial period and later reworked through postcolonial commercialization—generated and perpetuated unequal and inadequate access to water. Colonial water infrastructures were explicitly designed to prioritize revenue generation, curtailing supply to racialized populations, embedding socio-spatial inequalities into the material fabric of the city. These financial and infrastructural logics have proven remarkably durable, structuring post-independence reforms and contemporary efforts to attract private investment. As a result, Mombasa has been locked into a condition of perpetual water crisis, characterized by chronic scarcity, deteriorating infrastructure, high non-revenue water and the proliferation of costly non-networked alternatives that further fragment urban space. This article develops the notion of the violence of full cost recovery to connect literatures on colonial urban water, urban political ecology and the financialization of development. By historicizing contemporary financialized water governance, the article cautions against treating commercial and market-based solutions as neutral or inevitable and highlights their tendency to reproduce colonial patterns of uneven urban development in cities across the global South.