This paper proposes SAASHA, a Self-Adaptable Agent System for Home Automation that provides end-users with the capacity of defining custom scenarios to act on their environment. The proposed system adapts dynamically to the environment without any expert intervention. It is composed of two types of component-based software agents: Graphical User Interface Agents that constitute the system's front-end and Device Control Agents that control the devices from the environment and implement user-defined scenarios. SAASHA seamlessly avoids scenario conflicts and automatically recovers from device failures.