Lock Change in Croydon — Professional Lock Replacement by Trusted Locksmiths
Whether you have just moved into a new home, lost your keys, or want to upgrade your security, CR9 Locksmith Croydon provides a fast and professional lock change service across Croydon and surrounding areas. Our DBS-checked engineers fit high-security, insurance-approved locks from leading manufacturers — with most changes completed in under an hour.
Call Now: 020 3883 0790
Why Change Your Locks?
Changing your locks is one of the most effective steps you can take to protect your home, family, and belongings. You never truly know how many copies of your keys exist — previous homeowners, tenants, estate agents, builders, and cleaners may all have had access. A lock change eliminates that risk entirely.
At CR9 Locksmith Croydon, we recommend a lock change whenever you move into a new property, lose your keys, experience a break-in, or simply want to upgrade from outdated locks to modern, high-security alternatives that meet current British Standard BS 3621 requirements.
Common Reasons for a Lock Change
Our locksmiths carry out lock changes for a wide range of situations. If any of the following apply to you, a lock change is strongly recommended.
- Moved into a new property — you do not know who has copies of the existing keys
- Lost or stolen keys — your property is at risk until the lock is changed
- After a burglary — even if the lock was not damaged, it may have been compromised
- Relationship breakdown — ensure only authorised people have access
- Old or worn locks — locks that are stiff, loose, or do not meet modern standards
- Insurance requirements — many policies require BS 3621 rated locks on external doors
Our Lock Change Services
Euro Cylinder Change
- Standard to anti-snap cylinder upgrade
- Anti-pick, anti-drill, anti-bump protection
- Thumb-turn options for fire safety
- Keyed-alike for multiple doors
Mortice Lock Change
- BS 3621 five-lever deadlock fitting
- Insurance-compliant lock upgrades
- Mortice sashlock replacement
- Wooden and composite door fitting
Full Lock Upgrades
- Complete front and back door lock change
- High-security cylinder and deadlock packages
- Multipoint lock replacement for uPVC doors
- New keys with restricted key profiles
Lock Types We Fit
| Lock Type | Best For | Security Features |
|---|---|---|
| Anti-Snap Euro Cylinder | uPVC and composite doors | Anti-snap, anti-pick, anti-bump, anti-drill |
| BS 3621 Mortice Deadlock | Wooden front and back doors | Insurance-approved, five-lever security |
| Rim Cylinder (Yale-type) | Secondary latch on front doors | Night latch with deadlocking roller |
| Multipoint Lock System | uPVC and composite doors | Multiple locking points along door edge |
| High-Security Cylinder (ABS/Avocet) | Maximum security applications | Patented key, restricted duplication, SS312 rated |
Key Control & Security
When we change your locks, we take key control seriously. You receive all new keys and we never retain copies. For maximum security, we recommend locks with restricted key profiles — these keys can only be duplicated with your authorisation and a security card, preventing unauthorised copies from being made at key cutting shops.
- All keys handed to you — we never keep copies
- Restricted key profiles available for ultimate key control
- Security card system — only you can authorise key copies
- 3 keys supplied as standard with every new lock
Lock Change Costs in Croydon
| Service | Price Guide |
|---|---|
| Euro cylinder change (standard) | From £55 |
| Anti-snap cylinder upgrade | From £75 |
| BS 3621 mortice deadlock change | From £85 |
| Full front door lock change (cylinder + deadlock) | From £120 |
| Multipoint lock replacement | From £120 |
Prices include lock, keys, and fitting. High-security options quoted on request.
Frequently Asked Questions
When should I change my locks?
You should change your locks when you move into a new property, after losing your keys, following a break-in or attempted burglary, after a relationship breakdown, when keys have been copied without your knowledge, or if your current locks are old and no longer meet British Standards. Changing locks is the only way to guarantee that previous keyholders can no longer access your property.
What types of locks do you fit?
We fit all major lock types including euro cylinders (standard, anti-snap, and high-security), BS 3621 mortice deadlocks, rim cylinders (Yale-type), multipoint locking systems for uPVC and composite doors, and specialist window locks. We stock leading brands such as ABS, Avocet, Yale, ERA, and Union.
What is an anti-snap cylinder and do I need one?
An anti-snap cylinder is designed to resist the most common method of forced entry — cylinder snapping. Standard euro cylinders can be broken in seconds using basic tools. Anti-snap cylinders feature a sacrificial section that breaks away without exposing the locking mechanism, keeping your door secure. We strongly recommend anti-snap cylinders for all external doors.
How long does a lock change take?
A straightforward cylinder change typically takes 10 to 15 minutes. A full mortice lock change takes around 30 to 45 minutes. Multipoint lock replacements on uPVC or composite doors can take 45 minutes to an hour depending on the mechanism. Our locksmiths carry a wide range of locks on-van, so most changes are completed in a single visit.
Can you set up locks so one key opens all doors?
Yes. We offer keyed-alike services where multiple locks across your property are set to operate with a single key. This is particularly popular for households with front, back, and side doors. For landlords and businesses, we also offer master key systems that provide controlled access across multiple doors.
Why Choose CR9 Locksmith Croydon
- DBS-checked locksmiths you can trust in your home
- High-quality locks from leading UK manufacturers
- 30-minute response for urgent lock changes
- Insurance-compliant locks fitted as standard
- No hidden fees — transparent, upfront pricing
Book Your Lock Change Today
Regain full control of who has access to your property. Our locksmiths can change your locks today — quickly, cleanly, and with minimal disruption.
Call Us Now: 020 3883 0790
Serving all of Croydon and surrounding areas
- Croydon Town Centre – High Street & Centrale
- West Croydon – London Road & Station area
- East Croydon – George Street & Addiscombe Grove
- South Croydon – Brighton Road & South End
- Waddon – Purley Way & surrounding estates
- Addiscombe – Lower Addiscombe Road to Ashburton Park
- Thornton Heath – High Street & Brigstock Road
- Shirley – Wickham Road & Shirley Hills
