When my neighbor bought his land, the very first thing that he did was hire a fencing company to run five strand barb wire around his property and also divide it into pastures. I believe he said that he got a deal at a buck a foot for them to do this and he spent over $30,000
Every winter, the pine trees drop branches on it and by the time Spring arrives, he has a dozen areas that have been destroyed. He has never had any livestock, he changed his mind on that and leaves all his gates wide open. Every couple of years he'll fix the fence, but it's never ending with the trees. So far, he has not done anything about the trees that are causing all his issues.
His lesson has made it very clear to me that the trees have to be removed before installing the fence. Where I am going to install this, I'm almost done removing trees. The more trees that I remove, the more I like my place!!!