Livingston Elevator Consultants 5 Regent St # 524 VDA (Van Deusen and Associates) works closely with clients to develop the most comprehensive designs for elevators, escalators, moving walks, lifts, and other forms of building transportation solutions. Livingston NJ Elevator Consultants John A Van Deusen and Assoc www.vdassoc.com elevator consulting vertical transportation consulting elevator consultants elevator consulting elevator lift consultants consulting materials handling materials management building systems hospital logistics lift consulting elevator con elevator consulting vertical transportation consulting elevator consultants elevator consulting elevator lift consultants consulting materials handling materials management building systems hospital logistics lift consulting elevator con Business Reviews John A Van Deusen and Assoc Testimonials