This book addresses the fundamental theme of corporate social responsibility (CSR), the concept of quality and its application in the specific area of service quality. Through an integral vision, it explores the relevance of service quality in the current business context and highlights how CSR goes beyond simple economic profit, as it seeks to care for the environment and society. Through empirical research focused on a sanitation company, we examine the perception of CSR and its impact on improving the quality of service provided by the entity. This study provides concrete evidence of the benefits derived from the adoption of responsible practices in business management. In short, this text is presented as an indispensable guide for leaders and professionals seeking to understand how CSR and service quality can converge to generate a positive impact on the performance and sustainability of companies, thus contributing to social welfare as a whole.