Providence keeps its dooryards small and its granite curbs sharp — triple-deckers shoulder to shoulder up the hill, a low stone wall holding back a strip of grass, the road running down toward brick mills and the smell of the Bay. Hernandez & Sons Landscaping LLC works those blocks and the towns around them, mowing and tending yard after yard, trimming trees back off the wires and the roofline, setting plantings in, laying patios and the concrete that carries them. There is a real satisfaction in the finished line of it: a lawn cut clean to the wall, a patio sitting level and true, a maple opened up so afternoon light drops through onto the steps. Come winter the same streets go white and narrow, and the crew is out clearing snow before the city has finished waking — driveways and lots opened up, the day handed back to whoever lives there. From Providence out through Cranston, Warwick, Pawtucket and across the line into Seekonk and Fall River, it is steady, physical work that leaves a place looking cared for.