Our Company, Your Advantage

Customer service is our number one priority.

Builders across MD, DE, VA, PA, and D.C. trust CBSI

Capitol Building Supply (CBSI), a GMS company, has twenty-one convenient yard locations throughout Delaware, Maryland, Virginia, Pennsylvania, and the Washington, D.C. metro area. For years, builders, contractors, construction professionals and homeowners across the Mid-Atlantic region have turned to CBSI for the quality building materials they require.

Through our partnership with the industry’s leading construction product brands, our network of yards, and our reliable delivery service, we’re able to honor our pledge to get the right products to customers as quickly and safely as possible.

Our People

Many of our employees have been working with Capitol Building Supply for over 10 years. Several started their careers with CBSI in delivery and warehouse positions, and later advanced into management. This is a testament to the great culture and work environment that CBSI provides. We really define our employees as “family” and truly care about the health and welfare of everyone who works for us.

All of Capitol Building Supply’s employees pride themselves in being hard-working, safe, and professional in their key roles. They are the backbone of our success as a company.