Just because a tree looks a little rough around the edges doesn’t mean you have to give it the last rites.  Trees are made to be around longer than most of us.  A tree continues to grow bigger and stronger while we peak and start to falter.  To keep a tree living from time to time you have to prune back some of the dead limbs to keep the others strong.  Most of us don’t have a clue what to do, so it’s a good idea to call upon tree surgeons.  They know exactly what to do because they work with them on a daily basis.