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Smart Lock Security Ratings Explained (TS 007, Sold Secure)

Complete guide to understanding UK smart lock security ratings including TS 007, Sold Secure, Secured by Design, and British Standard 3621, explaining what each rating means for your home security.

UK Security Rating Systems for Smart Locks

Complete guide to understanding UK smart lock security ratings including TS 007, Sold Secure, Secured by Design, and British Standard 3621, explaining what each rating means for your home security.

Comparing Ratings and Choosing the Right Lock

Complete guide to understanding UK smart lock security ratings including TS 007, Sold Secure, Secured by Design, and British Standard 3621, explaining what each rating means for your home security.

Specifications and Comparison

Rating Standard Attack Resistance Insurance Requirement Typical Discount Examples
TS 007 1-star 1 minute cylinder Not accepted by most insurers None Basic euro cylinders
TS 007 3-star 3 min cylinder / 5 min door Most insurers require this 5-10% Avocet Tredwall, Yale upgrade
Sold Secure Silver 3 minutes Some insurers accept 5% Yale Conexis L1
Sold Secure Gold 5 minutes Most insurers accept 10% Avocet Tredwall
Sold Secure Diamond 5+ minutes Highest acceptance 10-15% Ultion Smart only
Secured by Design Police preferred Additional discount 5-15% SBD-certified models

FAQ

What security rating does my smart lock need for insurance?
Most UK insurers require TS 007 3-star or Sold Secure Gold minimum. Check your policy wording. Ultion Diamond exceeds all requirements.
What is the difference between TS 007 and Sold Secure?
TS 007 rates the euro cylinder only. Sold Secure rates the complete lock assembly. Both are accepted by insurers.
Does a smart lock need BS 3621?
Only for wooden doors with a 5-lever mortise lock. If you replace the mortise lock with a smart lock, it must be BS 3621 compliant. For more information see our Smart Lock Compatibility with UK Door Handles.

Last updated: 2026-05-31.

External Resources

For further information consult authority guidelines at the British Standards Institution (BSI).