There are several things to consider when you have trees that might need an arborist. A homeowner may have a single tree or a number of trees that might need removal because of disease or because they are too close to roofs or each other. A professional tree surgeon will be able to balance the removal of trees and branches to save the trees the owner wants to save and to address the physical needs of the trees, in their current state and location. The first thing to understand is that this is not surgery, in a technical sense, but you might have trees with branches hanging precariously over the roof, or trees that appear to be dying. The strategic removal of branches or removing entire trees that are not desirable, can transform your landscaping.
There are pieces of equipment that can be considered essential, when you are considering professional tree surgery. The tree surgeon should have access to a stump grinder for stump removal, a skid loader or 4X4 tractor for clearing and moving debris, a log truck with cable for moving large logs, and cranes or bucket trucks for lifting and getting to limbs that are hanging over houses. Without proper equipment, it can be difficult to complete certain aspects of this type of operation, depending on the circumstances. There are some people that will have selective tree removal and others might use professional tree removal to transform undeveloped land into a beautiful, natural building site.
Other things to look for is hiring a fully trained and certified Arborist, a company that has the proper liability and employee liability insurance and a company that leaves no mess on your property, when the job is complete. Experts that understand how to control tree hazards and know all types of failure patterns can be important, because trees that are managed through proper pruning will seldom fail.