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Contact Us

19 Convenient Locations to Serve You

Dover, DE

Dover, DE

5119 N. DuPont Hwy.
Dover, DE 19901
PH: 302-678-4601
FX: 302-678-8034
Hours: 6:00 am-4:00 pm M-F

Selbyville, DE

Selbyville, DE

36652 DuPont Blvd.
Selbyville, DE 19975
PH: 302-436-8624
FX: 302-436-8631
Hours: 6:30 am-4:00 pm M-F

Baltimore, MD - Quad Ave

Baltimore, MD - Quad Ave

6813 Quad Ave.
Baltimore, MD 21237
PH: 410-284-2800
FX: 410-284-2899
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am–12:00 pm Sat

Baltimore, MD - Hamburg St

Baltimore, MD - Hamburg St

1303 W. Hamburg St.
Baltimore, MD 21230
PH: 410-685-1080
FX: 410-685-1084
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Beltsville, MD

Beltsville, MD

12340 Conway Rd.
Beltsville, MD 20705
PH: 301-937-6366
FX: 301-937-8710
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Bladensburg, MD

Bladensburg, MD

4501 46th St.
Bladensburg, MD 20710
PH: 240-764-1236
FX: 240-764-1235
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Frederick, MD

Frederick, MD

8006 Reichs Ford Rd.
Frederick, MD 21704
PH: 240-436-3500
Hours: 5:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Gaithersburg, MD

Gaithersburg, MD

7870 Beechcraft Ave.
Gaithersburg, MD 20879
PH: 301-921-9207
FX: 301-927-9446
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Hagerstown, MD

Hagerstown, MD

1225 Maryland Ave.
Hagerstown, MD 21740
PH: 301-739-3090
FX: 301-739-1021
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Upper Marlboro, MD

Upper Marlboro, MD

7811 Penn-Western Ct.
Upper Marlboro, MD 20772
PH: 240-455-0319
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Camden, NJ

Camden, NJ

201 Erie St.
Camden, NJ 08102
PH: 856-576-6964
FX: 856-576-6971
Hours: 7:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Harrisburg, PA

Harrisburg, PA

1001 Herr St.
Harrisburg, PA 17103
PH: 717-614-8954
FX: 717-996-3165
Hours: 7:00 am-4:00 pm M-F

Manassas Park, VA

Manassas Park, VA

8429 Euclid Ave.
Manassas Park, VA 20111
PH: 703-631-6633
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Marshall, VA

Marshall, VA

7595 Capitol Way
Marshall, VA 20115
PH: 540-364-1202
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Springfield, VA

Springfield, VA

7622 Backlick Rd.
Springfield, VA 22150
PH: 703-644-6970
Hours: 4:30 am-4:00 pm M-F
Hours: 6:00 am-12:00 pm Sat

Stafford, VA

Stafford, VA

16 Baron Park Rd.
Fredricksburg, VA 22405
PH: 540-368-6678
Hours: 6:00 am-4:00 pm M-F

Vienna, VA

Vienna, VA

431 Mill St. NE
Vienna, VA 22180
PH: 703-281-5151
FX: 703-281-4414
Hours: 5:00 am-4:00 pm M-F
Hours: 6:00 am-12:00 pm Sat

Winchester, VA

Winchester, VA

195 Lenoir Dr.
Winchester, VA 22603
PH: 540-662-9142
FX: 550-722-2136
Hours: 6:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

Washington DC

Washington DC

113 Potomac Ave. SW
Washington, DC 20024
PH: 202-554-9191
FX: 202-863-1364
Hours: 5:00 am-4:00 pm M-F
Hours: 7:00 am-12:00 pm Sat

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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), eight yards in Maryland (Baltimore, Beltsville, Bladensburg, Forestville, Frederick, Gaithersburg, Hagerstown, Upper Marlboro), one yard in New Jersey (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.