Clean a pair of pruning shears or a chainsaw well before cutting the arborvitae. If you are concerned about spreading disease, it's important to disinfect the shears or saw with a wipe of alcohol or household bleach over the blades.
Wait until early spring to cut the arborvitae before the shrub flowers and buds.
Cut the shrub down in sections so you can remove branches as you go.
Remove secondary branches and their leaders first to keep the shrub's main trunk intact.
Continue cutting and removing branches until the arborvitae is a few inches above the ground.
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