While I cannot control my garage door with mine, I use a cheap door contact sensor to tell me whether or not it is open/closed. Its mounted on the side of the garage door and works perfectly with SmartThings. If you want to actually control the door (again via Zwave/Zigbee) then get one of these: http://www.amazon.com/GoControl-Line...dp/B00M75TEIU/ (again assuming you already have a SmartThings or Wink or Verde controller).