My Locks Are Not British Standard 3621 – Do They Need To Be?
When you live in Winchester or the surrounding villages, home security should never be left to chance. While your locks might be functional, they might not meet today’s recognised standards for security and insurance. This is where British Standard 3621 comes in.
So, what does BS3621 mean for your property—and should you consider upgrading if your current locks don’t comply?
What Is BS3621 and Why It Matters
British Standard 3621 is a certification created by the British Standards Institution (BSI). It guarantees that a lock has passed rigorous testing for strength, durability, and resistance to common break-in techniques such as drilling and picking.
Key Features of a BS3621 Lock
To qualify under this standard, a lock must include:
- A five-lever mechanism
- Key operation from both sides
- Enhanced resistance to picking and drilling
- A longer bolt for stronger deadlocking
- The visible BSI Kitemark on the faceplate
These locks are typically installed on timber doors and are considered a benchmark for physical security in UK homes.
How to Tell If Your Locks Meet the Standard
Many older homes in Winchester—especially around areas like St Cross, Weeke, and Fulflood—still use locks that fall short of BS3621. If you’re not sure about yours, here are a few simple checks you can do:
- Look for the BSI Kitemark stamped into the lock face
- Check whether the lock has five levers
- See if you can lock and unlock it with a key from both sides
If any of these are missing, it’s likely the lock does not meet the standard.
Do You Need BS3621 Locks?
The short answer? Often, yes. But let’s break it down properly.
1. Insurance Compliance
Many home insurance providers now require BS3621 locks as a minimum standard on external doors. If your locks don’t comply, you may struggle to claim compensation in the event of a burglary—even if you’re fully insured otherwise.
2. Better Security for Winchester Homes
From Abbots Barton to Teg Down, burglars target properties where entry is quick and quiet. BS3621 locks take that option away. Because they’re more resistant to tampering, you gain a meaningful layer of protection.
3. Future-Proofing for Sales or Rentals
If you plan to sell or let your property, having BS3621 locks already fitted makes life easier. Surveyors and managing agents often look for these standards. Upgrading now avoids delays later.
Can You Add a Bolt Instead?
It’s a common workaround—but unfortunately, it doesn’t satisfy insurance requirements. Most insurers specify that the main locking mechanism must comply with BS3621, not just additional bolts or latches.
To avoid problems, we always recommend a full upgrade rather than relying on temporary solutions.
Your Local BS3621 Locksmith in Winchester
At Locksmith Winchester, we regularly upgrade locks to British Standard 3621 for homeowners throughout the area. Whether you’re based in Kings Worthy, Harestock, or Micheldever, we offer a friendly, honest service that puts your security first.
Here’s what we provide:
- Free lock checks and advice
- A wide range of BS3621-compliant locks
- Mobile fitting service – fully equipped van comes to you
- Clear, upfront pricing with no hidden fees
Because we’re based locally, we understand the area and the types of doors and locks commonly found in Winchester homes.
Book a Free Lock Check Today
If you’re unsure whether your current locks meet BS3621, we’re happy to take a look. It’s quick, there’s no pressure to commit, and you’ll leave with a clearer understanding of your home’s security.
Call us on 01962 690072 or visit www.locksmithwinchester.co.uk to arrange a visit at a time that suits you.
Final Thought
Having the right locks isn’t just about ticking a box for your insurance provider. It’s about securing your home, your family, and your peace of mind. If you’re based in Winchester and need expert advice on British Standard locks, we’re just around the corner and ready to help.
