We used this company fir many years until April 2012 when I had to leave early for appointments in Rochester, Mn, and my husband let them in then wen upstairs to work. Leaving them alone to turn on our sprinkler system. No one else came into the house the next 2 months. 6 weeks after they came I went to retrieve some important items to put into winter storage that I left hanging behind a door down the hallway fr the sprinkler control panel. They were no where to be found.(spent next 3 months looking everywhere