You can trim just one side of the tree, especially when that side is growing near something like a power line or a home. Pros will carefully trim the tree back until it is safe from that structure. While this is common, it also needs to be done with the utmost care, as pruning or trimming away at one side of the tree may make it structurally unsound. This instance is yet another where hiring a pro is wise, especially if power lines are involved.

It depends on where you live—but in most areas, leaves begin falling in September and continue falling until January or February. Warmer regions, such as Southern states, may see leaves fall a bit later in the calendar year. It also depends on the type of trees in your yard and their maturity. 

Late August, September, and mid-October are the ideal months for planting a young tree. However, the best time to plant a tree ultimately depends on when the weather transitions to fall-like conditions and eventually winter frost. As long as the hottest days of summer have passed and the ground hasn’t frozen yet, you can still successfully plant trees.

Yes, you can prune a palm tree with a chainsaw, but a chainsaw is overkill for a job like this. You risk damaging the tree if you make a bad cut. More commonly, you’ll need pruning shears or a serrated knife to trim a palm tree, or you can use a specialized pruning saw instead of a chainsaw.