Need to replace your old commercial doors? MacArthur Locks & Doors had a commercial door installation project in Bethesda, MD. Call us at (202) 760-4589. MacArthur Locks & Doors had a commercial door installation project in Bethesda, MD. The business owner called for a commercial door replacement service since they needed to replace some old doors for their business. We quickly responded to their request for a commercial door Bethesda as the business owner was looking for a commercial door repair service company. We were able to replace several exterior doors.