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Customer Portal

Managing Notifications in the Customer Portal

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Exploring Order History in the Customer Portal

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Making Account Payments in the Customer Portal

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Managing Employees in the Customer Portal

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Ordering Using Product Lists in the Customer Portal

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Ordering

Ordering Using the File Upload Method

Place an order using a spreadsheet, PDF or other file types

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About Us

Teaming up with the top brands in the industry, we have one simple pledge: to get the right products into our customers' hands as quickly and safely as possible.

Our Services

Capitol Building Supply carries a full range of commercial and residential construction supplies, and our crews are fully trained to deliver to all sites.

Our Locations

Our delivery fleet is dispatched from 19 locations including two yards in Delaware (Dover, Selbyville), seven yards in Maryland (Baltimore, Beltsville, Bladensburg, Frederick, Gaithersburg, Hagerstown, Upper Marlboro), two yards in New Jersey (Atlantic City, Camden), one yard in Pennsylvania (Harrisburg), six yards in Virginia (Manassas, Marshall, Springfield, Stafford, Vienna, Winchester), and one yard in Washington, D.C.

Contact Us

For more information about how to contact us, visit our Find a Yard page. Or, click the Contact Us tab to send us an email.