BS3621, SS312 and BS EN 1303 We Build To
For security, we adhere strictly to UK standards to protect your property. Our work complies with BS3621, the British Standard for thief-resistant mortice deadlocks, a requirement from almost every UK home insurer.
This standard is vital for back-up locks on wood front doors, protecting properties like Carshalton's period homes and Wallington's Edwardian terraces.
We also fit locks meeting the SS312 Diamond Sold Secure standard, an independent certification for attack resistance. This is often necessary for high-value homes in areas like Cheam Village and Purley, assuring top-tier security.
Additionally, we follow the BS EN 1303 European cylinder standard, which is significant for small commercial doors requiring durability and key control, especially in areas like Sutton High Street.
Our adherence to these standards guarantees that your property is protected in line with the most stringent security requirements.



