From 1999 until 2009 the National Steering Group for Multidisciplinary Guideline Development in Mental Health led a national guideline programme in the Netherlands. Ten service user and carer groups and 30 professional organizations were involved. Within the programme 13 practice guidelines and a range of other deliverables, such as patient versions, checklists and implementation materials, were produced. Lessons learned included the methodology of developing guidelines, service user and carer involvement, and the dissemination and implementation of the guidelines. There are important future challenges such as following a strict and transparent methodology, adhering to process management, improving integration of the service user and professional perspectives, and bridging the gap between guideline and practice.