WHY GO UP, WHEN YOU CAN GO DOWN? Expand your home’s potential with professional basement dig outs by Mark 4 Plumbing. We specialize in lowering basement floors, creating livable space, and increasing ceiling height with expert excavation tailored to structural safety and local building codes. Serving Philadelphia excavation projects from start to finish, we use modern equipment and 45+ years in the concrete business. Whether for finished living areas or added storage, our basement dig out services are designed to increase your property’s value and functionality.