Contact Us Milestone Construction Services would like to hear from you. If you are interested in having one of our representatives contact you please call, fax or email. We can be reached by one of the following: Milestone Construction Services, Inc. 21495 Ridgetop Circle Suite 300 Sterling, VA 20166-6512 Tel 703.406.0960 Fax 703.406.0964 mcsi@MilestoneConstruction.com