A locksmith works with the maintenance and repair of locks and bolts of all type of doors. They also repair padlocks. The most common tasks performed by locksmiths are opening building and vehicle doors, copying keys and selling locks and padlocks. Increasingly, more different types of locks are used. This increases the protection of the door but also makes necessary a locksmith with a high grade of specialization.
You can find here a selection of locksmiths in the United Kingdom (UK).