Why the radius is what it is
Four counties is a promise, not a limit
Plenty of contractors claim a five-county, six-county radius and then quietly deprioritize the edges. We'd rather draw the map we can actually cover. Henderson, Polk, Transylvania, and Buncombe are close enough to Saluda that a morning no-heat call can be an afternoon fix — including up the gravel roads and switchbacks that make some addresses here a commitment.
It also means the local knowledge is real, not marketing. The wind exposure above the Grade, the wet coves along the Green River, the thermal belt's strange mild winters, Asheville's elevation swings — these aren't lines on a service-area page; they're variables in how your system gets sized and maintained.