A twenty year old vinyl liner outsearches a new gunite build here
The searches you can win in volume come from people who already own a pool and have a problem with it.
Liner replacement, coping repair, plaster and pebble resurfacing, deck resurfacing, safety cover replacement, pump and heater swaps, salt conversion. Each of those is a separate job, sold to a separate mindset, and each deserves its own page written in the words the owner uses.
The head term for new construction is contested by lead brokers and national directories with budgets no regional builder should try to match organically. Renovation terms are longer, more specific, and easier to answer better than anyone else on the results page.
One page cannot serve six jobs. A single renovation page that lists everything you do will lose to six pages that each answer one question completely, with photographs of that exact job and an honest account of what changes the price.
Nobody can promise you a position for any of these. What a page can do is be the most useful answer available, which is the only durable input you control.