Maintenance refers to the systematic process of preserving, repairing, and servicing buildings, structures, and their components to ensure they remain functional, safe, and aesthetically pleasing over time. It involves all activities aimed at sustaining the operational efficiency of a building, preventing its deterioration, and extending its service life. In the context of building and maintenance, maintenance is not limited to simple repairs; it encompasses a wide range of preventive, corrective, and predictive measures designed to maintain the structural integrity, functionality, and appearance of buildings. Maintenance is a crucial aspect of building management because buildings are exposed to continuous wear and tear from environmental conditions, usage, and aging materials, which can lead to reduced performance and safety risks if not addressed properly. The functions of maintenance in buildings are multifaceted and can be broadly categorized into several key areas. One primary function is preventive maintenance, which involves regular inspections, servicing, and minor repairs to prevent potential breakdowns or failures. Preventive maintenance ensures that building systems such as plumbing, electrical, HVAC (heating, ventilation, and air conditioning), and structural components operate efficiently and reduces the likelihood of unexpected failures. Another critical function is corrective maintenance, which deals with repairing or replacing damaged or malfunctioning components after a fault or failure has occurred. This ensures that the building continues to serve its intended purpose without compromising safety or usability. Predictive maintenance is an advanced function that uses monitoring and diagnostic tools to predict potential problems before they occur, allowing timely intervention and minimizing disruption. Maintenance also serves functional purposes related to safety, comfort, and aesthetics. Safety maintenance ensures that all building components, including fire safety systems, electrical installations, elevators, and structural elements, comply with safety standards and regulations. Regular maintenance reduces the risk of accidents, fires, or structural failures, safeguarding the occupants and visitors. Comfort-related maintenance focuses on ensuring that building systems such as HVAC, lighting, plumbing, and acoustics operate effectively, contributing to a comfortable indoor environment for residents, employees, or users. Aesthetic maintenance preserves the visual appeal of the building by preventing the deterioration of paint, finishes, flooring, and landscaping. By keeping a building visually attractive and structurally sound, maintenance helps maintain its market value and social perception. The objectives of building maintenance are closely aligned with these functions. One of the primary objectives