Hidden Boundaries LLC installs, services and repairs Pet Stop® underground electric dog fences. Pet Stop® hidden pet fences are 100% USA made. Hidden Boundaries LLC has been installing and servicing underground electronic pet fence systems throughout western Michigan since 2000. We also provide professional service and repairs on all other brands of underground electric pet fences. Whatever your brand of pet containment system. With our professional skills and expertise, and with Pet Stop® highly adjustable and advanced products,we can safely keep your dogs and cats contained.