As a result of the EPB directive, the Flemish government has established a new regulation due as from January 1ste, 2006. This regulation also imposes the presence of minimal ventilation equipment in new buildings. Various Belgian as well as international investigations report a lack of quality of installed ventilation systems, in individual dwellings as well as in utility buildings. Possible problems range from missing inlets, leaking air ducts to inadequate flow rates and acoustical complaints. In order to improve performance and comfort perception, a quality tool is developed, assisting the installers to commission ventilation systems. An inspection list enables to check the conformity of the installation with the requirements imposed by law or design team. These check points can be visual or require measurement of air flow or acoustical performance. The aim is to establish a basic and pragmatic tool to improve customer satisfaction.