For dangerous work such as this, tree services' demonstrated possession of adequate insurance may well be the consumer’s primary consideration. Request to see certificates of liability and workman’s compensation insurance, and check that they are current. Phone the insurance company to verify current policy information.
Also ascertain how prepared tree services are to take appropriate action in the event that a mishap occurs. For instance, tree services removing limbs situated directly over telephone wires leading into your house should have experience in splicing together damaged wires. To minimize the likelihood of such damage in the first place, skilled tree services carefully control the fall of limbs using ropes.