About Groundworks in Kos: Do you need a professional who can handle earthwork at your site? Find the ideal company that will handle earthwork in Kos to complete the work you need easily, quickly, and safely. ... See why you should choose one of the following earthwork companies in Kos. A company specializing in earthwork can handle excavations, backfilling, leveling, drainage, debris removal, and transport with trucks and heavy machinery.