Trees require a lot of different services, and there is a pretty good chance that no matter what kind of service you require there would be some kind of a company that is willing to provide this to you at a reasonable enough price. However, the truth of the situation is that some companies are going to more focused on areas of tree care that you are not all that interested in. A good example of this can be seen with companies offering tree removal. This is quite different from tree service, and the fact of the matter is that if you were to hire a company that specializes in removal for something like tree service then they would most likely not really know how to give you something that would be worth the money you are giving to them.
This is because of the fact that they are focused on an area of tree service that has nothing to do with making the tree live longer and everything to do with getting rid of a tree. You should hire a tree care company in Keller, TX that specializes in taking care of and nourishing trees. That way they would know the exact processes that are required and will not require any hand holding or advice from you along the way.
A lot of different companies in the field specialize in tree care, and these are the ones that you should ideally end up hiring if you care about the kind of tree you own. Care specialists are really common but they are not as ubiquitous as you would think so ask in advance if they can handle the task you have for them.