Emergency intent is decided in seconds and rarely compared. Whoever appears with a number, a rate and hours that make sense gets the call — the second result is usually never contacted.
The landlord certificate is a fixed annual calendar with barely any competition. It comes from people with a legal obligation and a date, which makes it the cheapest recurring booking in the trade.
Boiler replacement carries the biggest ticket and the slowest decision. The searches are about cost, efficiency and warranty, and they are made weeks before anybody rings.
Symptom searches are the quiet win: no hot water, boiler losing pressure, radiators cold at the bottom. Explaining the likely cause brings the call from somebody who has already tried the obvious.