When Should You Change Your Locks? 6 Situations
Moving home, lost keys, a break-in or a tenant leaving — the situations where changing your locks is the smart, safe choice.
1. You've just moved in
You never know how many copies of the old keys exist. Changing the cylinder is cheap peace of mind.
2. Lost or stolen keys
Especially if they were with anything showing your address. Change locks the same day.
3. After a burglary or attempted break-in
Damaged locks are weaker even if they still turn. Replace and upgrade to anti-snap.
4. A tenant, lodger or partner moves out
Landlords should change locks between tenancies; it also protects you from liability.
5. The lock is stiff or worn
A key that sticks is a lockout waiting to happen.
6. Your insurer requires it
Check your policy's lock standards — British Standard BS3621 for wooden doors is common. Call 020 3372 4688 for same-day lock changes across London.