Cardinal Bank Opens Chantilly Banking Office; 23rd in the Region

Business Wire, May 15, 2006

TYSONS CORNER, Va. -- Cardinal Bank is pleased to announce the opening of its 12th location in Fairfax with the addition of the new Chantilly office located at 14000 Sullyfield Circle. The new office extends Cardinal's reach into the vibrant western Fairfax County market.

The Chantilly office is conveniently located on the corner of Sullyfield Circle and Lee Jackson Highway in the Sullyfield Business Park near the intersection of Routes 50 and 28. The office offers extended banking hours from 9:00 AM to 6:00 PM Monday-Thursday, 9:00 AM to 7:00 PM on Friday and 9:00 AM to 1:00 PM on Saturday. The drive up lanes are open from 8:00 AM to 7:00 PM Monday-Friday and 9:00 AM to 1:00 PM on Saturdays.

The experienced team of bankers led by Sarah R. Rowlands, Vice President and Banking Office Manager, may be reached at 703-378-6575. Cardinal customers can also bank 24 hours a day, seven days a week, by phone at 800.4.REDBIRD or online at www.cardinalbank.com.

"We are excited to open our 23rd banking office and to extend our reach in the growing communities in the region," said Kim C. Liddell, Chief Operating Officer. "Sarah is a talented and knowledgeable banker who will offer great value while serving the needs of local residents and businesses."

About Cardinal Financial Corporation: Cardinal Financial Corporation is a financial holding company headquartered in Tysons Corner, Virginia. On March 31, 2006, Cardinal Financial Corporation had assets of $1.48 billion. Through its wholly-owned subsidiary, Cardinal Bank, the Company serves the Washington Metropolitan region with 23 conveniently located banking offices in Alexandria, Annandale, Arlington, Chantilly, Clifton, Fairfax City, Fredericksburg, Herndon, Leesburg, Manassas, McLean, Purcellville, Reston, Stafford, Sterling, Sterling Park, K Street in Washington, D.C. and two locations each in Fairfax, Tysons Corner and Woodbridge. Cardinal also operates three other subsidiaries: a residential mortgage lending company, George Mason Mortgage, LLC, based in Fairfax, with nine offices throughout the Washington Metropolitan region; a full-service investment services company, Cardinal Wealth Services, Inc., and an asset management company, Wilson Bennett Capital Management, Inc. The company's stock is traded on the NASDAQ (CFNL). For additional information please visit our Web site at www.cardinalbank.com.