The rational use of water is essential to development and economic growth. Data from United Nations (UN) indicates that until 2050 will occur a more significant water scarcity due to the increasing demand for it in emerging countries, mainly with the populational growth of these locals. A conscious consumption by society can softy this effect preserving natural reserves and increasing water security. This premise is used to support the development of this work, which proposes the creation of a low-cost computational system that detects water leakages in residences using Internet of Things concepts. The system includes data acquisition, transmission, processing, and finally displays the information to the user. Empirical assessments about the data transmitting process and a comparison of different architectures and leakage detection techniques are in development to demonstrate proposal viability. The project presents the prototype tested in a real environment.