Stay away from wires
Treat every downed or dangling line as energized. Leave the area and report it to ComEd. Never try to measure clearance from a live line yourself.
Sources: ComEd outage reporting
Request utility coordination
ComEd provides a vegetation-service request channel for trees near its equipment. A private provider should identify what work belongs to the utility before proposing tree work.
Sources: ComEd vegetation-service request
BEFORE YOU DECIDE
Ask for a written scope.
Confirm what work is included, who handles debris, and whether permit or utility coordination applies. Compare provider credentials and availability directly.