Key Partners

A satisfied customer is the best business plan

EDC provides its clients with the safest, most efficient and economical solutions to the environmental consulting and construction challenges of the 21st century.

EDC has completed numerous projects throughout the Washington DC region for federal, state, and local agencies. We have also completed several civil projects for other General Contractors in the area. As you will find from our referenced customers, we continue strive to maintain ongoing, positive, and results oriented relationships with all of our Clients and Owners.

Our Key Partners

Our Services

EDC understands that to provide true value in a rapidly changing market, we must have a complete understanding of our client’s business and technical objectives to provide them with their desired business benefits.

General and Pre-Construction

Design-Build, Interior renovation/fit-out, base-building, and additions -- Estimating, Scope Development, Value Engineering, Site Logistics Planning, Scheduling, Subcontractor Development, A/E Coordination


Carpentry, Drywall, Electrical, Painting,
Plumbing, Roofing


Storm Sewers; Sanitary Sewers; Water Mains; Electric, Telephone, and Cable TV Duct Banks; Traffic Maintenance Systems

Paving & Concrete

Concrete Paving; Specialized Paving (Brick, Concrete Pavers, Stone Pavers, Exposed Aggregate); Streets & Roads; Highways; Bridges; Runways; Patch Work


Construction Management, Demo/White Boxing, Design/Build, Pre-Construction Services


Site Remediation and Stream Restoration