Extended education services are expanding in Switzerland. Their quality depends on the working conditions and well-being of staff. This study examined the relationships between job demands, job resources and well-being using the job demands-resources (JD-R) model. 655 staff members from 113 extended education services from three Swiss cantons participated in the three-wave study. Overall, staff reported low levels of job demands and high levels of resources except for autonomy. Results provided support for the motivational and health impairment processes proposed by the JD-R model, although not consistently for both measurement intervals. The findings highlight the importance of focussing on working conditions, especially when extended education services expand in the future.