Tree trimming allows light penetration, air flow through top of canopy. Tree trimming also removes suckers, dead limbs crossing branch and unwanted limbs so the crown can shape properly and promote health of the tree. Thinning Crown – reduce weight on heavy limbs, to get filtered light to grass and landscape down below, allow air flow through canopy which will help prevent limbs breaking. Cleaning Crown – to beautify branch structure and crown, removal deadwood for safety, cut back broken or diseased limbs for proper healing. Crown Reduction – to keep tree at certain heights and limbs at certain lengths, to allow light to landscape down below. Lifting canopy – to give clearance over roofs cables and streets |