How can stakeholders be involved in the development of energy services to increase energy efficiency? What is the optimal process for engagement? This is what has been tested in this Living Lab, which focuses on energy efficiency. This innovation paper is based on several applied research projects. Its objective is to disseminate research results. The advantages of the Living Lab method for developing energy services are highlighted. The main steps of the Living Lab Integrative Process are summarized in a checklist for professionals and includes: (1) Selection of a practice, (2) Identification of barriers, (3) Integration of stakeholders, (4) Development of a pilot, (5) Measurement of results, (6) Communication and dissemination. In conclusion, this vulgarization article facilitates the transition from the local to the global scale by encouraging the development of Living Lab mode initiatives in the energy sector.