Retrofitting residential buildings faster is a major challenge for Leuven. Finding the correct information and the right partners is not easy for inhabitants working on an energy retrofit. By establishing a one-stop-shop, we want to simplify this by providing one contact that groups the offer for energy retrofitting, renewable energy and energy saving. This system should also bring together service providers, allowing them to work more closely together and align their offers. Finally, it will also make it easier to provide and distribute subsidies. A one-stop-shop can contribute to considerably boosting the retrofitting rate in Leuven.