In today's highly competitive environment, maintenance, quality, and productivity are essentially related components and very important operational issues for a modern, successful, economic, and profitable production system. The focal point in this paper emerges from the lack of understanding how various quality management approaches and practices can contribute to the overall maintenance performance. The aim of this study is therefore, to define the impact of quality management practices on maintenance performance. The questionnaire survey was carried out among Slovenian organisations in order to address the research problem. Several statistical analysis methods including correlation analysis as well as regression analysis are utilised to accomplish the objective of this study. Results of the study indicate that quality management practices incorporated into maintenance processes have positive impact on maintenance performance. We conclude that these results can benefit to organisations seeking for an approach how to improve maintenance performance. This study also contributes to the literature by providing an insight into deployment of quality management practices into maintenance processes.