Answer the questions you already get asked
You do not need a content strategy. You need to write down, once and properly, the answers you give on the phone twenty times a month.
"How much does a bathroom refit cost in 2026?" "Do I need planning permission for a dropped kerb?" "What happens if my boiler is condemned?" Each is a page. Each is genuinely useful. Each is written from knowledge you already have.
The filler test
Before publishing, ask: could a stranger with no experience of this trade have written this in ten minutes? If yes, it adds nothing — and thin, generic pages do not sit inertly; they dilute the impression of the whole site.
Useful content usually contains at least one of: a real number, a real constraint, a real mistake you have seen, or a decision rule. Generic content contains none.
Volume is not the goal
Twelve pages that answer real questions thoroughly will outperform a hundred spun ones, and cost less to maintain. Publish when you have something to say, not to a calendar.