Luton Borough Council publishes its condition as a licensing one. It states that "You'll need a licence if you own or manage a property anywhere in Luton and it is occupied by five or more persons, forming two or more households who share common amenities like a bathroom or kitchen", and that "Our boroughwide additional licensing scheme, for small HMOs with three or four persons living there has now been agreed and will go live on 1 June 2026". Those statements are about licensing the property, and they apply to the HMOs the council describes.
The trade itself sits outside any statutory scheme. The Master Locksmiths Association writes that "As there's no government based licensing scheme for locksmiths, anyone can advertise as a locksmith irrespective of their background or competency." It runs its own scheme instead, in which approved companies "have been vetted, are regularly inspected and have to employ a qualified locksmith".
The lock standard a customer hears about comes from insurers. Allianz's home insurance guidance states that "Most insurers insist your lock conforms to British Standard BS3621, which ensures it has been independently tested for security features including resistance to drilling, picking and forced entry", and tells the reader to check "the faceplate of the lock or the strike plate for the BSI Kitemark or BS3621 marking". The Master Locksmiths Association notes that some insurers set that requirement and others do not.
Police.uk returned 7 burglary offences in the Luton Town Centre neighbourhood for July 2026, the latest month its street level crimes data listed when we read it on 17 September 2026. It is a count covering one named neighbourhood for one month.
We would walk a Luton customer through how they check a locksmith's vetting, what the Master Locksmiths Association says its approval covers, and what the insurer's BS 3621 wording asks them to look for on the lock.