Established in 1994, Doherty Plumbing Co., Inc. began as a small, family owned, commercial plumbing company. We are still family owned but have expanded to a full service plumbing group with many crews working all over the Washington DC metro area. We are still pleasing General Contractors in the construction of large and small commercial properties, but we have added a service department to serve businesses' and home owners' service and remodel needs.