Can these people do so safely and in the interest of the Trees involved?
A Tree Surgeon will be able to Target Prune any cuts made to encourage "Accluded Bark" for the wound to heal and protect the Trees systems.
A professional Tree Surgeon should be able to safely Fell any Tree either by Straight Felling or by Dismantling (dismantling is the technique of climbing the Tree to remove limbs individualy using ropes, pulleys and Lowering Devices to safely bring the timber to the ground).
Your Tree Surgeon should be wearing Chainsaw Trousers of the correct Type (full all-round protection for climbing in the Tree or if using a saw on the Ground for less than 16 hours per week), chainsaw boots for use at all times, not just steel toecapped boots, a chainsaw helmet should also be worn at all times, both when climbing and when on the ground with both a face visor and ear defenders of the correct type and strength. Novices will also wear chainsaw gloves when using a chainsaw on the ground.
A Qualified Tree Surgeon will also use a Climbing Harness of the correct type, CE marked and within the expiry date quoted by the Industry Standards.
Climbing ropes utilised should aslo be of the correct type and standard (arborists use a 13mm diameter static rope for climbing instead of the 11mm dynamic ropes used by absailers and rock climbers).
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Lowering ropes should also be of the correct standard and suitable for the works intended (lowering ropes start at 13mm diameter and can range to 20mm diameter for the "big stuff" (all of these ropes and systems and rope sizes are used by Andrew Watkins Tree Surgery dependant upon the size and nature of the Tree we are working on).
A qualified Tree Surgeon should only use professional equipment that is robust enough and bulit to exacting standards to provide faultless service day to day within these harsh environments, some "Tree cutters" wiil use bowsaws, hacksaws and blue nylon ropes!!!!!!!