Coating, parapet and bulkhead are the words, not shingle and pitch
Most roofs in the five boroughs are flat or low slope, so the vocabulary your customers type has almost nothing in common with national roofing content.
A homeowner in a suburb searches for shingle replacement cost. An owner in Astoria searches for why a roof coating is cracking, what a ponding spot on a tar roof means, or who repairs a parapet wall that has started dropping brick onto the sidewalk.
Build the keyword list out of the assembly and the failure. Modified bitumen. EPDM. Built up roofing. Silver coating. Coping stones, scuppers, roof drains that back up in a hard rain, skylight curbs, bulkhead doors that leak at the threshold.
Each one is a page with a real question behind it, and in most cases nothing local ranking above it. The national pages are written for pitched shingle roofs by people who have never seen a water tank on a Manhattan setback.
Pitched work still exists here, on Staten Island, in stretches of Queens, in Riverdale, and on brownstone mansards. Give it its own pages instead of letting it set the tone for the whole site.