Capitol Building Supply

Your source for commercial and residential construction material products.

Capitol Building Supply serves both commercial and residential customers and offers the largest inventory of construction supplies in Delaware, Maryland, New Jersey, Pennsylvania, Virginia, and Washington D.C. All of our employees pride themselves on being hard working, safe, and professional. Whether you need drywall, insulation, acoustical tile or construction accessories, we've got your jobsite needs covered.

The Capitol Building Supply app features include full access to your online account and account pricing, as well as real time inventory and full order tracking.