A short call or a shorter form. Say what the tree is doing, let a local professional attach a figure, and make the call with facts in hand.
Call or text (864) 786-6890 — answered every day of the week. Two minutes covers it: where the tree is, what it's doing, and any deadline attached. Photos help if you have them; nobody will make you take any.
Your town and rough location, what kind of tree if you know it (guessing is fine), what worries you about it, and how a truck would get close. When an inspector's report or insurer's letter is behind the call, keep that wording nearby — matching the work to the demand saves money.
Something down on a building, or your only exit pinned: call, don't type, and say it's urgent. Anything involving a power line: the utility or 911 comes first, every time — see the storm page for the full drill.