Late August along Lowell Boulevard, the light turns gold by seven and every fence line throws a long shadow across the grass. Castillo's Fencing and Landscaping LLC works those margins, mowing, edging where turf meets concrete, cutting back the growth that wants to swallow a fence post by September. Broomfield's dry heat pushes a lawn hard, and a careful cut is what carries it through. There is pride in a finished border, the line so straight it looks drawn. Then the truck moves on and the yard stays that way for the week.