透過全體員工的努力，信興電器服務中心(SHESC)於1993年10月，經過香港品質保證局的嚴格審核，獲頒發國際品質認證標準ISO 9002證書 (編號CC130)，是香港首間取得此資格的同類型公司。其後於2003年4月、2009年8月、2017年10月升格為ISO 9001:2000、ISO9001:2008、ISO9001:2015認證。2009年6月成功取得國際環保認證標準ISO 14001證書 (編號CC3900)，並於2017年10月升格為ISO14001:2015認證。再者，信興電器服務中心亦於2010年10月獲頒發綜合管理(Integrated Management System)證書。

In order to upkeep the service quality standard, SHESC focuses on the development of quality enhancement and environmental management system. For proactive implementation of Total Quality Management (TQM), it formulated strategic direction and monitored the progress of quality policy and environmental policy in the company. SHESC carries out internal quality, environmental and safety audits throughout the year to ensure all documents and procedures meet the quality system requirements. Besides, technical departments assist in resolving quality issues and give manufacturers feedback. On-job training programmes on technical skills and quality are conducted for staff from time to time to ensure proficiency in the latest technology and quality knowledge. SHESC is able to meet the exacting customer requirements of the ever-expanding businesses and markets. SHESC upholds its business philosophies which are customer centric and staff-oriented.

SHESC regularly sends out customer opinion questionnaires including on-site repair, project installation and counter services through random sampling, to ascertain customer satisfaction and appreciation towards our services provided. Based on the customers' feedback and opinions, SHESC strives for continual improvements to meet customer needs.

In June 1995, SHESC pioneered in publishing service pledges and establishing service performance standards for evaluation and improvement of service performance. Through in-depth market surveys, SHESC was able to grasp the expectation and requirements of customers and the market with the aim of striving for continual improvement of quality management for excellent service.

As a long-term commitment, SHESC will continue to provide consistently outstanding services to customers and assist in the development of smart city through high-quality staff and effective management, equipped by advanced facilities and information system.