A 40 m² roof shows why a services marketplace cannot normalize quotes with one price-per-square-meter field. The intervention comes first: cleaning, localized repair, waterproofing, or full replacement. Then access must be modeled separately.
In the latest 99manos analysis, façade scaffolding can add €2,400–€2,900, nearly the same fixed cost seen on much larger roofs. For a small project, that can outweigh material choices. The product lesson is to capture roof type, slope area, height, safe access, removal, waste, and tax assumptions before providers quote. Once these fields are explicit, users compare the same scope instead of totals built from different jobs.