Any cutting of tree roots can hurt or kill a tree, which is why it's recommended you don’t do it unless the roots are damaging or invasive on a nearby structure like your home. You should never cut more than 15 percent of above-ground tree roots at one time. If you have any questions about cutting tree roots, contact your local arborist.

There are many signs that a tree is diseased or dying, and if you suspect that’s the case, you should call an arborist immediately. You might notice rot or fungus on the trunk or that the tree is beginning to lean to one side. Brittle branches or signs of root damage are other indicators that a tree is in trouble. If the tree is dying, it might be time to cut the tree down so it doesn’t fall.

It is possible to burn out a tree stump if it is dried out and in an area of your property with a large buffer. Drill holes in the stump and dig around the base so it burns more easily. Then, build a small campfire on top using kindling and firewood. You’ll need enough to keep the fire going for many hours to completely burn out the stump, especially if it’s large. 

Monitor the fire closely to ensure it doesn’t spread, and have a hose on hand if it starts to get out of control. When the fire is out, break apart the burned stump and dig out what’s left of it.  

If this sounds like a good option, learn more about how to burn a tree stump before attempting it, as it does come with risks.

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.