Lock Change in Pimlico
Need a lock change in Pimlico? Whether you’ve moved into a new place, lost keys, had a tenant changeover, or you’re tightening security, a proper lock change is about more than swapping a part. It’s making sure the new lock is correctly matched to your door, installed cleanly, and tested so it works smoothly every time.
SW1V Locksmith Pimlico provides a dedicated lock change service across Pimlico and nearby areas, focused on doing one thing properly: changing your lock so you regain control of access.
As your local Pimlico locksmith team, we also offer related services such as door lock replacement and door lock installation.
If you’re locked out or need urgent attendance, use our emergency locksmith service.
Our lock change service is available to residents and businesses across Cascades, Charlwood Street, Cambridge Street and Denbigh Street, ideal for new property moves, lost keys, and tenant changeovers.
This page is only about lock change
If you’re here for a lock change, you’re in the right place. Everything on this page is about:
When you should book a lock change
Lock changes aren’t only for emergencies. Most people book a lock change for one of these reasons:
After moving in
Even if the previous owner seems trustworthy, you can’t know how many copies of the keys exist. A lock change gives you a clean start.
Lost, stolen, or unaccounted-for keys
If keys are missing and you can’t be sure where they’ll end up, a lock change restores control of access.
Tenant or staff changeovers
If multiple people have had keys over time, a lock change helps prevent “old keys” being used later.
After a break-in attempt or forced entry
Even if the door still works, the lock (and surrounding fixing/keep area) may be stressed or compromised. A lock change ensures the locking points and cylinder/mechanism are reliable again.
Upgrading security (without changing the door)
Many doors can accept a higher-security lock option without major work, as long as the correct spec is chosen for the door.
Worn lock that’s becoming unreliable
If the lock is stiff, inconsistent, or starts causing key-turn issues, it’s usually smarter to book a lock change before it fails at the worst time. If the keys are still secure and the issue may be repairable, see lock repair.
Where lock changes are commonly needed
Property types
Door locations people typically change locks on
What a lock change includes with SW1V Locksmith Pimlico
A professional lock change should leave you with a lock that’s secure, smooth, and correctly aligned.
What we do during a lock change
- Identify the exact lock type currently fitted (so the replacement is compatible)
- Measure correctly (so it sits flush, operates smoothly, and doesn’t protrude)
- Remove the old lock cleanly
- Fit the new lock and secure it properly
- Align the lock with the keep/strike so it locks without force
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Test thoroughly:
- Provide the new keys supplied with the lock
What we check to make sure the new lock feels right in daily use
What a lock change does not involve
Lock change options (what we can change, and what you should choose)
Lock choice matters because doors vary a lot. The right lock change depends on the door material, how the door locks, and the security level you want.
1) Euro cylinder lock change (very common on multi-point doors)
Often found on uPVC doors, composite doors, some modern timber doors with multi-point locking, and some aluminium door systems.
What matters when changing a euro cylinder
- Correct size (internal/external measurement so it sits centred and stable)
- Flush fit (avoids protrusion and improves security)
- Correct cam behaviour (so locking is smooth and consistent)
- Security level (basic vs high-security features such as anti-snap/anti-drill/anti-pick)
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Whether you want:
Common mistakes we avoid
2) Mortice lock change (often on timber doors)
Often found on traditional wooden front doors and older internal access doors.
What matters when changing a mortice lock
Common scenarios
A proper lock change includes correcting alignment so the new mortice lock works smoothly in real use.
3) Nightlatch lock change (common on many front doors)
Often found on timber doors with a rim-mounted latch and key cylinder.
What matters when changing a nightlatch
If you actually need replacement, not a change
If the lock hardware is damaged, compromised, or failing internally (beyond a clean access reset), you may need a full like-for-like hardware swap. In those cases, see door lock replacement.
We regularly carry out lock changes in Pimlico Library, Dolphin Square Fitness Club, Nelson Mandela and David Lloyd George, providing fresh keys and renewed security with same-day service.
Business lock changes and key control
If you need lock changes across offices, shutters, staff entrances, or multiple doors on one site (including planning keyed-alike or structured access), see commercial locksmiths.
What affects the cost of a lock change
Lock change pricing depends on practical factors, such as:
How to prepare for your lock change appointment
Aftercare: keeping your new lock working smoothly
Lock change FAQs
Can you change a lock without changing the whole door?
Yes—most lock changes are purely hardware. The key is choosing the correct lock for your existing door setup and fitting it properly.
Should I change locks when moving into a new home?
It’s strongly recommended. You can’t know who has keys, how many copies exist, or whether keys were shared previously.
Can I have the same key for multiple doors?
In many cases, yes (depending on lock types and compatibility). If you want keyed alike, mention it when booking.
How long does a lock change take?
Many lock changes are straightforward once the correct lock is selected and properly sized. More complex doors or multiple locks will take longer, especially where the door must be tested for smooth, repeatable locking.
Will the new lock feel stiff at first?
It shouldn’t. A properly fitted lock should turn smoothly. If it feels stiff, it usually indicates a fitting or alignment issue that should be corrected.
Book a lock change in Pimlico
If you need a clean, professional lock change—done with correct sizing, correct fitting, and proper testing—contact SW1V Locksmith Pimlico. We’ll change your lock properly so you can lock up with confidence and stop worrying about who might still have a key.