The points to check before selecting a motorised system: 1. Is there a power supply where the spot you wish to install the motor? 2. Does the door work properly? Is it in good mechanical condition and correctly balanced? 3. Is the structure of the garage (walls, lintel, partitions, etc.) in good enough shape to install a motorised system? 4. Does the garage open and close properly? 5. How much space is available to install the motor?