Koorsen Fire & Security Categories Security Services 3577 Concorde Road Vandalia OH 45377 (937) 660-7050 (937) 660-7049 Visit Website Hours: Monday - Friday 8:00AM - 5:00PMSaturday - ClosedSunday - Closed Rep/Contact Info Betty Dankworth × Betty Dankworth Phone: (937) 660-7050 3577 Concorde Road Vandalia OH 45377 Share × Print Email Facebook Twitter LinkedIn Pinterest Tell a Friend ×