Founded in 1996, GCI is one of the top-rated local companies in the Washington, DC metropolitan area. The same crew has been working together for over 15 years. We take pride in our work and have satisfied the most demanding clientele. The owner personally inspects all completed roof installations before you pay. Because GCI is foreman-owned, our costs are lower and we pass these savings on to you. Estimates are often as much as 20% less than our competitors!