General Info

4a Contracting is a trusted local contractor based in Frederick, Maryland, offering expert services in pressure washing, soft washing, house washing, basement construction, and flood mitigation. We help homeowners and businesses keep their properties clean, strong, and protected—with a focus on quality, care, and lasting results. Whether you need to brighten your home's exterior, build out a basement space, or defend against water damage, 4a Contracting delivers professional solutions with precision and pride.