I have just installed my second Pet Stop system. My first system was installed 12 years ago, we lost our friend last year, time had pasted and we decided to bring another friend. I pulled out the collar and all the equipment to see if my original would work. I called Pet Stop and learned I would be dealing with a different. The representative from the new office, came to my house, she checked the wire and an overhaul was due to cutting 28 very large Ash trees,. They provided a quote on the past, I told them to go about. They finished putting the new wire into today. I give them 10 stars. Great