B&W LAB - DC area
You have two excellent choices -
Black and White - owned by Gary and Kit Putnam in Arlington - just up the road from Rosslyn. 1916 Wilson Blvd, 2nd Floor, Arlington, 703-525-1922
Exceptional B&W only lab. They have been in business for quite a while and are known for their processing and fine printing. Good people.
Chrome in Georgetown.
Chrome, 3247 Q Street, NW, DC - just off of Wisconsin Avenue. Full Service lab - B&W, Color, everything.
For E-6 processing
Chrome or Capital Color - also at 1916 Wilson Blvd in Arlington. 703-528-3873.
Capital Color is one of the finest E-6 labs on the East Coast. One man shop (use to be three) - Open four-days a week (-Monday-Thursday) - Run by Mike Langford, the owner who has thirty years in the business. Very good guy. Sterling reputation.