There are several reasons why it may be beneficial to hire a tree trimming service. Here are the top 5 reasons:

1. Safety: One of the primary reasons to hire a tree trimming service is for safety. Overgrown or damaged trees can pose a risk to people and property. Trimming or removing these trees can help prevent accidents and damage from falling branches or trees.  Also your own personal safety.  You might get hurt using a chainsaw at heights while trimming those trees.
2. Health: Regular trimming can help maintain the health of trees by removing dead or diseased branches, promoting new growth, and improving air circulation and sun exposure. This can help extend the lifespan of trees and improve their overall health and appearance.  It can get very expensive to replace trees that could have been maintained.  The money you spend now will save you money later.
3. Aesthetics: Proper trimming can help improve the appearance of trees and enhance the overall appearance of your property. Trimming can help shape trees and remove unwanted growth or branches, creating a more attractive landscape.  Lets be honest, who doesn't want a great looking yard.
4. Property value: A well-maintained landscape can help increase the value of your property. Trimming trees can help improve the appearance of your property and make it more appealing to potential buyers or renters.
5. Expertise: Tree trimming can be a complex and dangerous task, requiring specialized equipment and knowledge. Hiring a professional tree trimming service can ensure that the job is done safely and effectively, and can help prevent damage to your trees or property.  Sometime it is worth it to pay the professionals to do the job right the first time.

Crown thinning is a tree maintenance technique that involves selectively removing branches from the crown of a tree to reduce the tree's overall density. This technique can help your trees in several ways:

1. Improved air circulation: Thinning the crown of a tree allows more air to circulate through the branches and leaves. This increased airflow can reduce the risk of fungal diseases and promote healthy growth.
   
2. Increased light penetration: By removing some of the branches in the crown, more sunlight can reach the lower branches and the ground below. This can help promote the growth of grass and other plants beneath the tree.
   
3. Reduced weight: Thinning the crown of a tree can reduce the weight of the tree's branches. This can help reduce the risk of branch breakage during storms or other extreme weather conditions.
   
4. Improved appearance: Crown thinning can also improve the overall appearance of a tree, making it look more balanced and aesthetically pleasing.
   

Overall, crown thinning can be a beneficial tree maintenance technique, but it should be done carefully and by a professional arborist to avoid damaging the tree.