Mortice Locks
Mortice locks sit inside a pocket cut into the door and are common on timber front and back doors. A 5-lever BS3621 mortice deadlock is the standard many UK home insurers ask for.
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Mortice lock jobs
- Your insurer requires a BS3621 lock
- The key is lost or the lock is worn
- The key turns but the bolt doesn't throw
- You want to add a deadlock to a door that only has a latch
How we solve it
Your locksmith will fit a correctly sized BS3621 deadlock or sashlock, or repair the existing lock. New mortice locks can be fitted into doors that don't have one.
How your locksmith helps
- Step 1
Measure
Case size and backset are checked.
- Step 2
Fit or replace
The lock is fitted or swapped, with the keep adjusted.
- Step 3
Test
The deadlock is tested from both sides.
Why choose LockSub
- BS3621 5-lever deadlocks
- Sashlocks for back doors
- New locks fitted into existing doors
- Keys supplied
- Every locksmith ID-checked and insured
- Rated 4.8/5 on Trustpilot
Mortice Locks: common questions
What's the difference between a deadlock and a sashlock?
A deadlock has a bolt only and is locked with a key. A sashlock adds a latch and handles, so the door can be closed without locking.
Related services
- British Standard Locks — BS3621 and kitemarked locks that meet insurance requirements.
- Lock Replacement — Worn, broken or insecure locks replaced with British Standard models.
- Yale & Nightlatch Locks — Rim nightlatches repaired, replaced and upgraded to British Standard.
Mortice Locks near you
Available in every UK town and postcode area.
Need a locksmith now?
Speak to us 24/7. We'll send the nearest LockSub approved locksmith.