The tub to shower conversion is the query still worth owning in this valley
Category searches belong to the aggregators, but job-shaped searches still reward the company that can actually do the work.
Three families of query are realistically winnable. Job-shaped searches name a change: converting a garden tub to a walk-in shower, replacing a shower pan, opening the wall between a kitchen and a living room, adding a second bath. Material-shaped searches compare options, such as refacing against replacing cabinets. Constraint-shaped searches describe a problem, such as whether a toilet can move on a slab.
Each of those deserves its own page, written by someone who has done the work. Show a real project, the sequence, what usually goes wrong, and a range you are willing to stand behind. Two paragraphs of generic advice will not outrank a lead seller with a large content budget. A detailed account of the actual job will.
Treat any keyword list, including one an agency hands you, as a hypothesis until you pull the real data. Volumes and competition change, and nobody should be committing your budget to a page on a hunch.