Although the terms tree trimming and tree pruning are used interchangeably, they are very different types of tree maintenance. Tree trimming involves enhancing the appearance of your tree by removing unruly branches, providing your tree with ample sunlight and nutrients and prevents unsightly overgrowth. 

Tree pruning helps keep your trees disease-free. This process removes unhealthy growths, dead branches, and other unhealthy parts of the tree. It’s more common for deciduous and ornamental trees but not so common for evergreen trees. To determine which method you need, discuss it with a tree trimming specialist.

Make sure the tree roots soak around a day before you dig the tree up for the transplant. Keep the roots wet while the tree is above ground. After the transplant is finished, provide consistent water every day for the first month or so. You don’t want to overwater the tree, but you do want to keep the roots wet so they can thrive in their new environment.

It is possible to cut down a tree on your property yourself, but it is generally not recommended unless specific conditions are met. You should only consider this project if the tree is small (e.g., under 4-5 inches in diameter and short enough that you don't need a ladder to reach the branches), and you are experienced in handling a chainsaw. The tree must also be located far from any power lines, fences, homes, or other structures. Even for small trees, the work can be dangerous, and it's always advisable to have a spotter to ensure the tree falls correctly and no branches fall on you.

For any tree that is large, requires a ladder to access, or is near electrical lines or structures, you should always hire a professional. Attempting to remove a large tree yourself is extremely dangerous, poses a risk of serious injury, and could result in significant damage to your property.

Before any tree removal, it's also important to check your local and state regulations to ensure the tree is not historic or otherwise protected by your city.

Tree trimming can count as landscaping, depending on how a landscaping business describes its services. Professional tree trimmers are more specialized than landscapers and offer trimming services separately from general landscaping.

When general landscaping companies offer tree trimming, look up the details. They usually mean shaping or seasonal trimming of ornamental trees, which is different from trimming larger trees for health or safety reasons. When possible, look for a licensed expert that specializes in trees and tree health.