Protecting what you love
Each of our doors provides the reassurance of outstanding security.
Unbeatable security
Our Designer Doors have been designed to provide the ultimate in safety and security, protecting you and your home.
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Police Approved
As a police organisation, Secured by Design works to improve the security of homes and reduce crime through effective product design.
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3 Star BSI Kitemark
Withstanding attack from drilling, picking, bumping, snapping and plug extraction, our locks have been awarded 3 stars, the highest BSI Kitemark rating.
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Diamond Standard
Our locks have been awarded the highest standard (Diamond) by Sold Secure, which is recognised to be the most rigorous testing regime of locks.
Protecting your home with the secure 3 Star cylinder
ANTI-BUMP Bumping is a process of making the pins jump above the shear line to gain access, anti-bump prevents this.
ANTI-BUMP Bumping is a process of making the pins jump above the shear line to gain access, anti-bump prevents this.
ANTI-SNAP A sacrificial zone is in place to ensure if the lock is snapped an intruder cannot gain access to the inner workings.
ANTI-SNAP A sacrificial zone is in place to ensure if the lock is snapped an intruder cannot gain access to the inner workings.
ANTI-PICK Anti-pick locks are made in such a way that it is almost impossible to pick.
ANTI-PICK Anti-pick locks are made in such a way that it is almost impossible to pick.
ANTI-DRILL Hardened steel anti-drill pins are in each side of the cylinder. Plus all moving pins are nickel plated hardened steel 50 HRC minimum.
ANTI-DRILL Hardened steel anti-drill pins are in each side of the cylinder. Plus all moving pins are nickel plated hardened steel 50 HRC minimum.
COMBINATIONS Over 80,000 different key combinations
COMBINATIONS Over 80,000 different key combinations
3 STAR RATING Cylinders are awarded a three star rating when they have passed all criteria of the TS007 British Standard Kitemark including new lock snapping tests.
3 STAR RATING Cylinders are awarded a three star rating when they have passed all criteria of the TS007 British Standard Kitemark including new lock snapping tests.
An unrivalled reputation for product excellence
All of our locking mechanisms are supplied by the leading door hardware suppliers. As highly-regarded and respected manufacturers, each guarantee that every lock supplied to Smart Designer Doors is of a superior standard.
Choosing a lock for your home
Choosing the right lock for your new door is an important decision. For example, do you want the door to lock when you close it, or when you turn a key? Here are some of the benefits of the different lock types, but if you need help and advice, one of our installation partners will be happy to help.
Multi-Point Slam Lock
High Security, Multi-Point Slam Lock
- Successfully tested to PAS 24:2016 Enhanced Security Performance
- 5 Multi-point high security lock; 2 hooks, 2 shoot-bolts and central dead-bolt
- The door locks automatically each time you close it, entry only with a key
10 Point Lock
High Security, 10 Point Lock
- Successfully tested to PAS 24:2016 Enhanced Security Performance
- 10 Point locking for high security
- The door is locked with a key after it is closed