The content has to be working in the season nobody is swimming
A summer inquiry is usually next year's job, and the research that produces it happened months earlier.
Build timelines mean a decision has to be made well ahead of the season it is meant to serve. By the time somebody is uncomfortable in August, the calendar for that summer closed months ago.
That leaves a gap most builders never close. The autumn and winter searching, which is where the serious planning happens, meets sites that were updated for the summer rush and articles written about summer.
The useful frame is that the off season is the selling season and the summer is the delivery season. Content should be finished and indexed before the planning period, not written during the phone calls.
It also changes what the content is about. Somebody planning in November is asking about process, cost, timelines and design, not about how nice a pool is in the heat.
There is a second, smaller opportunity in the late summer disappointment. Somebody who spent a season wishing they had a pool is the ideal audience for a page explaining what it takes to have one ready next year, and almost nobody writes it.