Hidden Boundaries is West Michigan’s exclusive supplier of industry-leading PetStop® electronic pet containment systems. The staff of our locally owned company has a combined 40 years of experience in installing underground dog fence systems. Every PetStop® electric pet fence installation is custom, designed to suit your property and particular pet safety needs. We service and repair any existing underground fencing system - whatever the brand. We also provide proper training after every installation to ensure the use of each in ground fence product is humane and zap-free.