David H. Martin Excavating, Inc. started out in 1968 with one man, a dump truck, and a backhoe. Today we have more than 200 employees, a large fleet of dump trucks and a vast assortment of excavation equipment. Located in south-central PA, just north of Chambersburg, our familiar brown and orange trucks are associated with providing superior excavation and utility services to private and public commercial, residential, and agricultural clients in PA, MD, and WV.