Hazards with not using a Professional Tree Trimming and Pruning Service

If you have a bunch of overgrown trees or misshapen branches in your backyard, your first thought may be to grab your chain saw, climb a ladder and get to work. But could you tell a dead or diseased tree from one that is merely neglected and overgrown? Unless you are a professional, chances are you would not be able to spot these common - and potentially dangerous - problems.