Before you fell a tree, you'll need to take the time to survey both the tree you're cutting down and its surrounding area. Check for nearby structures and utility lines where the tree might fall into. Also, check the condition of your tree. Does it have diseased or dead branches? Is it leaning in a direction opposite to where you intend it to fall? Is the tree surrounded by other obstacles such as pavements, outdoor furnishings, or other trees? If the answer yes to any of these questions, you will need to hire a professional.