Smart locks are one of the most popular home security upgrades in the UK right now. They offer convenience, flexibility, and enhanced security — but choosing and installing the right smart lock requires careful consideration. This is your essential guide to smart lock installation.
Types of Smart Locks
Retrofit Smart Locks
Retrofit smart locks fit over your existing deadbolt or cylinder, adding smart functionality without replacing the entire lock. They are ideal for renters or those who want a quick, non-invasive upgrade. The Tedee smart lock is a popular retrofit option.
Smart Cylinder Replacements
These replace your existing lock cylinder with a smart version, while keeping the existing lock body. They offer a cleaner installation and are compatible with most standard mortice locks.
Full Smart Lock Systems
Full smart lock systems replace the entire lock mechanism with a purpose-built smart lock. These offer the most features and the cleanest installation, but require more work to fit.
Compatibility Considerations
Before choosing a smart lock, you need to consider:
- Door type: Is your door wooden, uPVC, or composite? Different smart locks suit different door types.
- Existing lock: What type of lock do you currently have? Some smart locks are designed to work with specific lock types.
- Door thickness: Smart locks have minimum and maximum door thickness requirements.
- Connectivity: Do you want Wi-Fi, Bluetooth, Z-Wave, or Zigbee connectivity?
- Smart home integration: Do you want to integrate with Alexa, Google Home, or Apple HomeKit?
The Installation Process
While some smart locks are marketed as DIY-friendly, professional installation is always recommended for several reasons:
- Incorrect installation can compromise security
- Professional installation ensures the lock is correctly aligned and functioning
- A locksmith can advise on the best position and configuration for your specific door
- Professional installation may be required for insurance purposes
Security Considerations
Smart locks introduce new security considerations alongside traditional ones:
- Cyber security: Choose a lock from a reputable manufacturer with strong encryption and regular firmware updates
- Battery backup: Ensure your smart lock has a battery backup or external power option to prevent lockouts during power failures
- Physical security: The smart lock should still meet physical security standards — look for BS3621 certification where possible
- Access management: Regularly review and revoke access codes for people who no longer need them
Professional Smart Lock Installation from Keys4U
Keys4U provides professional smart lock installation across London and the UK. Our locksmiths are trained in the latest smart lock technology and can advise on the best solution for your home. Call us on 033 3305 2993 for a free consultation.


