DTM Drafting & Consulting Services, Inc (Vertical System Consultants) offers an array of new construction, maintenance and modernization consulting services. Our projects are executed by an experienced staff of field and project engineers, inspectors, draftsmen and other qualified personnel, fully apprised of all the latest technological advances. We can meet the most demanding schedules and set up appointments within 24 hours. We offer these services with the DTM guarantee of ethical and scrupulous fulfillment in a courteous, efficient manner.