Does the mold job differ between old Humble's crawl spaces and Atascocita's slabs?

Fundamentally. A crawl space job is an under floor job, joists, subfloor, vapor, and drainage, where the house breathes its problem upward. A slab subdivision job is usually a systems job, the handler's condensate, a shower pan, a supply line in a wall, where the growth is contained in materials that come out and get rebuilt. The map is drawn in different places, the containment is built differently, and a quote that does not say which house it priced has not visited either.