Our paper proposes a new quality of service concept for smart home services. We assume that every flat in a house has its own smart computer to perform local services and acts as an interface for the different sensors and actors inside the flat. These smart computers are interconnected using a plain switched Ethernet infrastructure. A central server offers shared services for each user and a gateway realizes Internet access. Based on the defined priority of each service, we present a solution to prevent congestion situations inside the network based on a distributed traffic shaping scheme. Furthermore, the proposed system is not only applicable to the smart home services scenario, it could also be applied to handle similar problems within classic computer networks and many other fields.