Understanding the Importance of BS Standard Kite Mark on 5 Lever Deadlocks for Insurance Approval
- peterpio
- 2 days ago
- 2 min read
When securing your home or business, the quality of your locks plays a crucial role in protecting your property and belongings. Insurance companies often require specific standards for locks to approve contents insurance. One key requirement is that 5 lever deadlocks must meet the British Standard (BS) and carry the kite mark. This blog explains why this standard and certification matter and how they impact your insurance coverage.
What Is a 5 Lever Deadlock?
A 5 lever deadlock is a type of lock commonly used on external doors for enhanced security. It uses five internal levers that must be lifted to the correct height by the key to unlock the door. This mechanism makes it more resistant to picking and forced entry compared to simpler locks. Because of its design, it is often recommended for securing homes and commercial properties.
Why BS Standard Matters
The British Standard (BS) is a set of technical specifications that products must meet to ensure safety, quality, and reliability. For locks, the relevant standard is BS 3621. This standard tests locks for resistance to common burglary methods such as picking, drilling, and snapping.
Locks that meet BS 3621 have undergone rigorous testing to prove their effectiveness. This means they provide a reliable level of security, reducing the risk of unauthorized entry. Insurance companies recognize this standard as a benchmark for quality and security.
The Role of the Kite Mark
The kite mark is a certification symbol issued by the British Standards Institution (BSI). It confirms that a product has been independently tested and meets the relevant British Standard. For 5 lever deadlocks, the kite mark shows that the lock complies with BS 3621.
Having the kite mark on your deadlock is important because:
Insurance Approval: Many insurers require locks to have the kite mark to approve contents insurance. Without it, your claim could be denied if a break-in occurs.
Consumer Confidence: The kite mark assures you that the lock is tested and reliable.
Legal Compliance: Some building regulations and tenancy agreements specify the use of BS standard locks with the kite mark.
Practical Tips for Choosing the Right Deadlock
When selecting a 5 lever deadlock, look for these features:
BS 3621 Certification: Check the packaging or product details for this standard.
Kite Mark Logo: Ensure the lock carries the kite mark symbol.
Professional Installation: Proper fitting is essential to maintain the lock’s security rating.
Additional Security Features: Some deadlocks include anti-drill plates or hardened bolts for extra protection.
What Happens Without a BS Standard Kite Mark Lock?
Using a deadlock that does not meet BS 3621 or lacks the kite mark can have serious consequences:
Insurance Claims May Be Rejected: Insurers may refuse to pay out if your locks do not meet their security requirements.
Increased Risk of Burglary: Non-standard locks are easier to bypass.
Potential Legal Issues: You might fail to meet tenancy or building regulations.




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