If a tree has simply outgrown the space in which it sits, then a Crown Reduction is the way to reduce the overall size of the tree's canopy. By carefully selecting a location just above strong limbs, the remainder of the branch is removed, thereby leaving the remaining branches to form the new outline to the canopy.

The shortening of branches is carefully carried out over the entire branch system, so the remaining canopy is smaller and well balanced.

Deadwooding and Crown Cleaning are normally also carried out at the same time as a Crown Reduction, as it is necessary for the Tree Surgeon to climb into the canopy in order to reach the branches that need to be reduced.