Tree removal should be considered in the following situations:

1. Safety concerns: If a tree is leaning dangerously, has large or heavy branches that are overhanging your house, or is at risk of falling due to damage or disease, it may need to be removed to prevent damage to property or injury to people.

2. Structural issues: If a tree is growing too close to a building or has roots that are causing structural damage to a foundation, sidewalk, or driveway, it may need to be removed to prevent further damage.

3. Disease or infestation: If a tree is infected with a disease or infested with pests and the damage is severe, it may be necessary to remove the tree to prevent the spread of the disease or infestation to other trees.

4. Landscape redesign: If you are planning a major renovation of your property or a change in your landscaping design that requires removing a tree, you may need to consider tree removal.

5. Tree health: If a tree is showing signs of poor health, such as a thinning canopy, excessive deadwood, or significant decline in growth, it may need to be removed to prevent the spread of disease to other trees or to ensure the safety of your property.

In any of these situations, it is important to consult with a professional tree service company to assess the tree and determine the best course of action. Tree removal can be dangerous and should only be done by trained professionals with the proper equipment and safety gear.