O’Donovan Locksmiths have been based in Chatswood for over 20 years. We offer a fast and friendly service operating 7 days a week. Are you Locked Out?, and require the services of a fully qualified, fully licensed, local emergency mobile locksmith service Chatswood, NSW. Harry O’Donovan is the Chatswood answer to all your lock and key requirements. With a low cost call out for jobs booked in during normal business hours, it makes sense to take advantage of calling me to get an estimate with a clear price structure.