How to check British Standard lock kite mark?
When looking for a British Standard lock, the quickest check is the kitemark — the BSI heart-shaped logo — stamped on the lock.
Where to look
- Mortice locks: on the faceplate on the edge of the door, usually with “BS3621”.
- Night latches: on the edge of the latch body or the staple.
- Euro cylinders: on the cylinder face, often with “TS007” and star ratings.
If there’s no kitemark, the lock is unlikely to meet insurance requirements. We can check and upgrade it for you.
Need advice or a lock fitted? Call East London Locksmith on 02071 186187 — 24/7, no call-out fee.