We have a tree that 3 other arborists advised us to remove as it had 'girdling tree roots' and would choke itself to death. Tomas Cohen was my 4th opinion who said not to cut it down. Seven years later, the tree is still strong and shading our home, although the segments that were already ailing 7 years ago did not survive. We had the crew remove the dead wood from the tree this November, along with the removal of two ash trees on the property that succumbed to Emerald ash borers, and the trim of a maple. The office staff communicated precisely when to expect their crew, and they showed up on time. They are outfitted with the appropriate tools to do the job safely and efficiently. The crew were friendly, approachable, fast, efficient, and fastidious in cleaning the yard after completing their work. Payment is made online, not to the crew. They are not the cheapest option, but clearly the most professional arborists we've had visit our property. I would not hesitate to hire them again!