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Match a lock to your door in minutes
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View allEuro Cylinders
Anti-snap and high security cylinders for uPVC and composite doors with sizes to fit most profiles.
Mortice Locks
BS3621 rated sashlocks and deadlocks for wooden doors, available in left or right handing.
Smart Locks
Keyless entry, app control, and audit trails for homes and small offices with secure encryption.
Why Buy From Oak & Key
We curate locks that meet UK standards and real world reliability tests. Every product is reviewed for durability, pick resistance, and ease of use. Our team provides human support by phone and email, helping you compare specs and get it right first time.
Security rated by independent labs Optional professional installation Same day dispatch on stocked lines
Certified Hardware
Products aligned with BS3621, TS007 and PAS24 where applicable for dependable protection.
Expert Support
Talk to a UK based specialist for sizing help, compatibility checks, and fitting guidance.
Fair Pricing
Clear pricing with VAT included in cart and no surprise fees. Bulk discounts available.
Fast Delivery
Tracked shipping options across the UK with pickups from our London hub.
Featured Picks
Browse allTS007 3 Star Euro Cylinder
High security anti snap, anti drill, and anti bump cylinder for uPVC and composite doors. Available in multiple sizes.
BS3621 Mortice Sashlock
Insurance approved mortice lock for timber doors with robust case construction and smooth action.
Smart Lock With App Control
Keypad, Bluetooth, and temporary code sharing for guests. Works with existing euro cylinder profiles.
Secure Your Door In 3 Steps
Measure your cylinder or backset, choose a matching security level, and schedule fitting if you need help. Our guides include printable rulers, diagrams, and videos to make it simple.
Measure your current lock Select the right product Book installation or DIY
Euro cylinder measuring
Find internal and external lengths accurately
Mortice lock sizing
Identify backset, case depth, and forend dimensions
Smart compatibility
Check clearance and power requirements
Fitting checklist
Tools and safety tips for clean installation