BS3621 Locks in Peckham, Southwark, London SE15
A BS3621 lock is a five-lever mortice lock made to British Standard 3621 — the standard most often named for timber front doors. Lucky Locks fits BS3621 locks in Peckham, Southwark, London SE15, on the timber front doors of Victorian terraces and other homes across the area. Call 07984 547185.
If you have been told you need a BS3621 lock — by an insurer, a letting agent, or a surveyor — this page explains what the standard means and what fitting one involves, in plain language.
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- 65 Glengall Rd, London SE15 6RU
- Peckham, Southwark, London SE15
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What a BS3621 lock is
BS3621 is a British Standard for thief-resistant locks. A lock made to BS3621 has at least five levers, a hardened bolt, and protection against drilling and picking built into the standard. On a timber door it is usually fitted alongside a night latch, so the door has two locks working together. The standard also covers the way the lock is fitted — the bolt must throw a set distance into a reinforced keep.
Five-lever mortice locks
A five-lever mortice lock sits inside the door itself, in a pocket cut into the edge of the timber. The key lifts five levers inside the lock before the bolt can move. More levers means more possible key combinations, and a harder lock to force. The lock is operated by a key from both sides, and the bolt throws into a keep fitted to the frame.
Which doors suit a BS3621 lock
BS3621 locks suit timber doors — the front doors of Victorian and Edwardian terraces, which make up much of Peckham's housing. They do not suit every door: UPVC and composite doors use multipoint locks instead, and internal doors use simpler latches. The locksmith will look at your door and tell you whether a BS3621 lock fits it.
Insurance and BS3621
Many home insurance policies ask for locks made to BS3621 on the doors that give access to the home. Requirements vary between insurers and between policies, so check your own policy or ask your insurer what it asks for. The locksmith can tell you what is fitted after looking at your door, and it is worth keeping the receipt and any paperwork that comes with the lock.
What fitting involves
The locksmith looks at the door and the existing lock, talks through the new mortice lock and the price on the call, then fits the new mortice lock, cuts the keep into the frame, and tests the lock and keys with you. If the door already has a mortice lock, the new lock is fitted in the same pocket where the door allows it.
Frequently asked questions
What is a BS3621 lock?
A BS3621 lock is a five-lever mortice lock made to British Standard 3621, the standard most often named for timber front doors. It has at least five levers, a hardened bolt, and protection against drilling built into the standard. Call Lucky Locks on 07984 547185 to ask about your door.
Do I need a BS3621 lock on my front door?
Many home insurance policies ask for locks made to BS3621 on the doors that give access to the home, but requirements vary. Check your own policy or ask your insurer what it asks for. The locksmith can tell you what is fitted after looking at your door.
What is a five-lever mortice lock?
A five-lever mortice lock sits inside the door, in a pocket cut into the edge of the timber. The key lifts five levers before the bolt can move. It is operated by a key from both sides, and the bolt throws into a keep fitted to the frame.
Can you fit a BS3621 lock to a UPVC door?
No. BS3621 locks suit timber doors. UPVC and composite doors use multipoint locks instead. If your door is UPVC, the right lock is a multipoint lock or an anti-snap cylinder — call 07984 547185 and tell us what kind of door you have.
How do I arrange a BS3621 lock fitting in Peckham?
Call Lucky Locks on 07984 547185 and tell us about your door — timber or UPVC, front door or back door. The locksmith will explain the fitting and the price on the call, then agree a time for the visit with you.
Related pages
lock replacement in Peckham · lock change in Peckham · security system installation