Replacement research pays back organic work; the 2am no-cool call does not
Emergency demand is captured above the organic results, so organic budget belongs on the decisions homeowners make slowly.
Look at a phone screen for an emergency query. Ads, then the map pack, then aggregator directories. You can hold a strong organic position under all of that and still take a thin slice of the clicks.
Planned work behaves differently. A homeowner with a limping fourteen year old air handler reads for a week: brand comparisons, whether the ductwork has to be replaced too, financing, what a proper load calculation is and why the last guy did not do one.
Those sessions run longer and they happen on a laptop as often as a phone. The contractor whose page answered the question honestly tends to be the one who gets the estimate appointment.
So the build order is replacement, indoor air quality, ducts and maintenance agreements first. Emergency pages still get written. They are just not where organic is won.