Capitol Building Supply, Inc.

Your construction products experts in DE, MD, NJ, OH, PA, VA, and D.C.

Originally founded as Fairfax Building Supply, the company that would become Capitol Building Supply has a legacy of 35+ years providing the best construction products, and exceptional service, in multiple states surrounding the Washington, D.C. metro area.

Today, as the largest company in the GMS family, CBSI has hundreds of employees serving residential and commercial construction customers across the Mid-Atlantic region from our yard locations in:

Delaware
Dover | Selbyville

New Jersey
Atlantic City | Camden | Elizabeth

Ohio
Cleveland | Stow

Pennsylvania
Harrisburg | King of Prussia | Pittsburgh

Washington, D.C.

Local contractors, builders, and other construction professionals have known for years, when it comes to sourcing the best local selection of building supplies, one choice rises above the rest. CBSI is a trusted industry leader offering:

Customer service with an unmatched sense of urgency, for all accounts, regardless of size
Unwavering commitment to safety, in our yards, and your jobsites
Competitive pricing on our comprehensive product line for true “one-stop” shopping
Fast and efficient delivery service to commercial and residential jobsites within ~100 miles of our yard locations
Specialty item ordering for those hard-to-find or custom construction supplies

Work with the Best

Capitol Building Supply, Inc. succeeds because of the talents of our expert staff, some with decades of experience with us. Want to join the best local construction supply team? Apply for careers with CBSI now.

Need expert help with your building projects in DE, MD, NJ, OH, PA, VA, or D.C.? We are here for you.