Lock Replacement
If a lock is worn, damaged, or no longer secure because keys are missing, replacing it is the safest option. LockSub locksmiths fit quality locks to British Standard where suitable, usually in a single visit.
When a lock needs replacing
- Keys lost, stolen or held by a previous tenant or owner
- The lock is worn, stiff or keeps failing
- Your insurer requires British Standard locks
- The lock was damaged in a break-in or forced entry
- You want to upgrade from an old or basic lock
How we solve it
Your locksmith will identify the lock you have and recommend a suitable replacement, such as a BS3621 mortice deadlock, a British Standard nightlatch or a TS007 3-star anti-snap cylinder, and fit it so the door works smoothly.
How your locksmith helps
- Step 1
Identify the lock
The existing lock and door are checked and measured.
- Step 2
Recommend options
You're told the options and prices, with insurance requirements in mind.
- Step 3
Fit and test
The new lock is fitted and tested, and you get the new keys.
Why choose LockSub
- Mortice, nightlatch, euro cylinder and multipoint locks
- British Standard and insurance-approved options
- Most lock changes done in one visit
- Old keys no longer work
- Every locksmith ID-checked and insured
- Rated 4.8/5 on Trustpilot
Lock Replacement: common questions
Should I replace or just re-key?
For euro cylinder locks, swapping the cylinder is quick and effective. For mortice locks and nightlatches, the whole lock is usually replaced.
How much will it cost?
It depends on the lock, the work and the time of day. Your locksmith will tell you the price before starting, and nothing goes ahead until you agree.
Related services
- Lock Changes — New home, lost keys or a tenant moving out? Change your locks.
- British Standard Locks — BS3621 and kitemarked locks that meet insurance requirements.
- Anti-Snap Locks — Protect uPVC and composite doors from lock snapping.
- Euro Cylinder Replacement — Worn or vulnerable euro cylinders swapped for anti-snap models.
Lock Replacement 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.