Call any day of the week, or send the form and get a call back — either road ends at a real number from a local pro.
Phone suits urgent things and people who'd rather talk: dial, describe the tree, and mention the town — whether that's Hannibal or Palmyra, out west in Monroe City or Philadelphia, up at Taylor, along West Ely Road, or a numbered county road between any of them. If wood is on a structure or a line, open with that; the routing takes emergencies literally.
The form suits everything else. Three fields and a sentence about the tree is plenty, and a photo attached to a follow-up text is worth two paragraphs. Requests get a response within one business day and usually much sooner.
Either way, what comes back is a free, no-obligation figure from an independent Marion County professional — and the decision after that is entirely yours to make or postpone.