This thesis measures the service quality of Property Management Companies (PMCs) in commercial buildings in Macau from the occupants-users’ point of view along five dimensions of Reliability, Assurance, Tangibles, Empathy and Responsiveness (RATER). The research draws attentions to the average rating of service qualities provided by PMCs and the occupants-users satisfaction. The findings note that four of the dimensions of quality measured were just slightly above the average with the rating in the empathy dimension being below average. 40% of the occupants-users surveyed had overseas working experiences who gave a significant lower rating of their satisfaction along the five dimensions. This finding showed that PMCs’ services in Macau were lagging behind their overseas counterparts. Further investigation revealed that there were significant positive relationships observed between the five dimensions and the occupants-users’ satisfaction. These findings were based on a survey of 378 office building users-occupants in Macau. The survey also noted that a proper suggestion channel, improvement on handling complaints, regular meeting with occupants-users, the need to treat all occupants-users as equals and continuous improvement were the major factors needed to increase occupants-users satisfaction. Furthermore, the responsiveness of services by PMCs was observed to be of the most important dimension by the occupants-users of the office buildings in Macau. The RATER model allows PMCs to measure the existing service qualities among five dimensions, and understand their weaknesses needing improvement. It was observed that a number of areas for improvement include: specialized professional training or educational programs in property management, overseas benchmarking for continuing improvements, employee exchange and the hiring of experts from abroad for specialized knowledge transfer; would be some concrete solutions to cope with the challenges and fulfill the increasing standards of occupants-users of commercial buildings in Macau. It is recommended that PMCs consider adapting the use of the RATER model as a measuring tool to identify and improve their services along the five dimensions of service quality. Besides, the PMCs in Macau should focus on improving their service along the empathy dimension, such as by conducting regular meetings with occupants-users to understand their individual needs and by providing butler services. Local PMCs should learn more about overseas property management services and set up standard operation procedures with a focus on continuous improvement of services. The Macau Government could coordinate with various university institutions to provide more specialized property management education courses at the bachelor degree level in order to upgrade the professionalism of the PMC industry