We are currently using an arborist, recommended by two friends, who has trimmed a tree for us. The tree to be trimmed needed two limbs removed: one was decaying, and the other banged on our house. However, the arborist removed four limbs. They are saying that the other two limbs had to be removed because when one takes down a limb, it has to swung down away from the tree and these other limbs were in the way. However, we are not at all happy with the result. (They removed the two other limbs without asking). My question is, is their explanation for the extra limb removal correct or usual? The tree in question is a sweetgum and the limbs removed were indeed close to the ones we had wanted removed. But now the tree looks very bare and, as I know nothing about trimming trees, I have no way of knowing if this kind of thing is usual or not. So, I'd be grateful for an informed opinion.