Welcome to A&Y Locksmiths – professional emergency locksmiths operating across Hertfordshire and North London. FAMILY RUN LOCKSMITHS ESTABLISHED SINCE 1979 We have a reputation for excellence throughout the area, of which we are justly proud. This family-run firm provides a host of day-to-day and emergency locksmith solutions. These include lock replacements, uPVC door repairs, domestic and commercial safes, key cutting, engraving and more.