Haiyan in Gaithersburg 7 reviews Darnestown, MD Joined 2008/05/21 First Review 8/10 Open lock Locks & Locksmiths review in Darnestown About 10 years ago I was locked out, and so I called them to help me. They were very fast and fixed the problem very quickly. They were also polite and nice. The price is also acceptable. Job Price Was this review helpful?