The tools that a tree service specialist brings to the job are going to be a huge indicator of how competent they are. For the most part you can find people that are really good at what they do, but in spite of the fact that this is the case they might not bring the right tools in which case you should fire them on the spot and look for someone that would be a little more flexible in this regard. A really useful tool that anyone is going to want at their disposal if they are about to take part in tree trimming would be a set of sharp shears.
You would be surprised at just how many arborists out there end up assuming that sharp shears are not important. When it comes to pruning, trimming and tree removal in Lodi CA, blunt shears are going to be a real nightmare to work with. Not only would they take a long time to get the job done but they would get stuck quite frequently as well also resulting in the cuts being rather rough and not as clean as they need to be at all.
The important thing here is making sure that the shears are really sharp. If they are sharp enough, they would get the trimming done in no time. Some service providers use blunt shears on purpose since they might charge by the hour and they would know that the longer they take the more money they would be able to get from you as well. It is important to note that sharp shears are a necessary tool of the trade, so you should only hire someone that has them.