Plumbing maintenance is a crucial aspect of plumbing operations. It involves the regular upkeep and repair of plumbing systems to prevent damages and defects. Plumbing maintenance cannot be bypassed or shortcut, as it plays a vital role in ensuring the smooth functioning and longevity of the plumbing system. Various components within the plumbing and sanitation system may experience failures, leading to temporary issues or long-term structural damage caused by water seepage into walls and floors. This book aims to present research and reviews that contribute to the success of plumbing maintenance in buildings, covering all relevant perspectives required for maintaining a stable plumbing system.Extending the lifespan of a building is beneficial for reducing environmental impact and saving costs over its lifecycle. However, due to the complex construction of buildings, applying the concept of life-cycle cost in the design process requires coordination with the lifespans of subsystems to avoid unnecessary wastage and utility problems. When it comes to piping corrosion, past studies primarily focused on the physical or chemical characteristics of materials. This book on plumbing takes a different approach by examining practical case studies related to the plumbing system of buildings. It highlights various programs that employ water conservation and efficiency practices to ensure sustainable water usage.