Commercial Lock Upgrades — BS3621 & TS007 for Rutland Businesses
Commercial premises face specific security threats that standard locks are not designed to resist. Inta-Lock installs insurance-grade high-security lock systems across offices, retail premises, industrial units, schools and all commercial property types across Rutland, Leicestershire and the East Midlands — to the standards required by your commercial insurer.
Commercial Premises Require More Than Standard Locks
Standard residential locks are not designed for commercial security requirements. Commercial premises face a different threat profile — higher value contents, regular staff turnover creating key accountability problems, longer periods of vacancy outside trading hours and commercial insurance policies that specify minimum lock standards as a condition of cover.
The most important distinction is the difference between a domestic break-in and a commercial one. A burglar targeting a commercial premises may have more time, more tools and greater motivation than one targeting a home. Standard euro cylinders — the lock type fitted to most uPVC and composite commercial doors — can be defeated in under 30 seconds using the cylinder snapping technique. This is not a sophisticated attack; it requires only basic tools and no specialist knowledge.
What Your Commercial Insurance Actually Requires
Most commercial insurance policies specify minimum lock standards in the policy schedule or conditions. The two most important standards for commercial premises in the UK are:
TS007 3-star — the British Standard for high-security euro cylinders, tested and certified against snap, pick, drill, bump and pull attacks. Required by most commercial insurers for uPVC, composite and aluminium-framed external doors. The TS007 standard is published by the British Standards Institution (BSI) and is the definitive UK standard for euro cylinder security.
BS3621 — the British Standard for 5-lever mortice deadlocks, required by the majority of commercial insurers for timber external doors. A BS3621-certified lock must pass rigorous tests for resistance to drilling, picking, and direct attack. Specified by the Association of British Insurers (ABI) as the baseline standard for insured commercial timber doors.
If your current locks do not meet these standards and your premises are broken into, your commercial insurer may reduce or refuse the claim. Inta-Lock assesses your current locks on site, advises on the correct specification and provides written confirmation of the standards met after installation — documentation your insurer can verify.
Why Upgrade Now Rather Than After a Break-In?
The cost of a commercial lock upgrade is a fraction of the cost of a commercial break-in — including the insurance excess, the disruption to trading, the cost of replacing stolen stock or equipment and the time spent dealing with the aftermath. A break-in through a standard cylinder that did not meet your insurer's requirements adds the risk of a disputed or rejected claim on top of that. The NNAL (National Network of Approved Locksmiths) recommends annual security reviews for commercial premises.
Six Attack Methods Defeated by TS007 Cylinders
A TS007 3-star certified cylinder is tested against every common forced-entry technique. Installing one on a commercial door addresses multiple vulnerabilities simultaneously — something a standard euro cylinder cannot do.
Your Current Commercial Locks vs What Your Insurer Requires
If your commercial premises still have standard cylinders or non-BS3621 mortice locks, this comparison shows exactly what you are missing — and why your insurer may not pay a break-in claim.
| Security Feature | ✗ Standard Lock | ✓ Upgraded (TS007 / BS3621) |
|---|---|---|
| Cylinder snap attack | Defeated in under 30 seconds | Sacrificial snap point — mechanism intact |
| Pick attack | Vulnerable to basic picking tools | Spool pins — picking commercially impractical |
| Drill attack | Minimal resistance | Hardened steel anti-drill inserts |
| Bump key attack | Highly vulnerable | Bump-resistant pin configuration |
| Pull/extraction attack | Extractable with basic tools | Reinforced body resists extraction |
| BSI formal certification | None | TS007 3-star or BS3621 (BSI tested) |
| Commercial insurer accepted | Frequently not | Yes — most UK commercial policies |
| Claim risk if broken into | High — insurer may reject | Low — meets policy conditions |
| Door modification needed | N/A | None for cylinders — direct replacement |
| Recommended by NNAL | No | Yes |
Source standards: British Standards Institution TS007 • Association of British Insurers commercial guidance • NNAL commercial lock recommendations
What Inta-Lock Recommends by Commercial Premises Type
Different commercial premises have different door configurations and different insurance requirements. Here is what we typically recommend for each type — confirmed on site before any work begins.
What to Expect — Commercial Lock Upgrade Process
A commercial lock upgrade carried out by Inta-Lock is a structured, professional process — not a simple swap-and-go. The right lock for your premises depends on your door type, your insurer's policy schedule and the specific risk profile of your location and business type.
Inta-Lock carries stock on the van for immediate fitting, so in the majority of cases a commercial lock upgrade is completed in a single visit with no need to order parts or make a return appointment. We provide written confirmation of the lock types and standards installed, which can be submitted directly to your insurer.
Where your commercial premises has multiple access points — front entrance, rear door, side access, car park gates, fire escape doors — we assess each one and advise which require upgrading and to what standard. An upgrade of only the front door while leaving substandard locks on secondary access points is not a meaningful security improvement and does not satisfy most insurer requirements.
For any additional security requirements beyond lock upgrades — safe installation for cash or controlled substances, key cabinet management or access control advice — see our Commercial Locksmith Hub.
Recent Commercial Lock Upgrade Jobs
Genuine commercial upgrade jobs from across Rutland and the East Midlands.
Commercial Lock Upgrade FAQs
My insurer says I need TS007 locks — what does that actually mean?
TS007 is a published British Standard (produced by the British Standards Institution) for high-security euro cylinders. TS007 3-star is the highest rating and requires the cylinder to be independently tested and certified as resistant to snapping, picking, drilling, bumping and pulling. When your insurer specifies TS007 3-star, they mean you need a certified cylinder — not just any euro cylinder. Avocet ABS and ASSA ABLOY are the two most widely stocked TS007 3-star cylinders and are what Inta-Lock carries on the van.
What is the difference between TS007 and BS3621 — which one do I need?
These are two different standards for two different lock types. TS007 3-star is the standard for euro cylinders — the lock type fitted to uPVC, composite and aluminium doors. BS3621 is the standard for 5-lever mortice deadlocks — the lock type fitted inside timber doors. Which one you need depends on your door type. Most commercial premises have multiple door types and need both standards across different access points. Inta-Lock assesses all your external doors on site and advises exactly what is required at each one.
Will upgrading my locks require any modifications to my commercial doors?
For TS007 3-star cylinder upgrades on uPVC, composite or aluminium doors: no. Anti-snap cylinders are a direct replacement for any standard euro cylinder — same dimensions, same fixing, no modification to the door, frame or handle required. For BS3621 mortice lock installation on a timber door where no mortice lock is currently fitted: yes, a mortice pocket needs to be cut into the door. Where an existing mortice lock is present, replacement with a BS3621-certified version is usually possible without modification, depending on the existing pocket dimensions.
Can you provide documentation that our locks meet the required standard?
Yes. Inta-Lock provides written confirmation of the lock types installed, the standards they meet (TS007 3-star, BS3621) and the specific doors they were fitted to. This documentation is provided on the day of installation and is suitable for submission to commercial insurers, letting agents or any party requiring evidence of compliance. We are used to producing this documentation and it is a standard part of any commercial upgrade job.
Can you upgrade all our locks in a single visit?
Yes, in most cases. Inta-Lock carries TS007 3-star cylinders (Avocet ABS and ASSA ABLOY), BS3621 5-lever mortice locks and commercial-grade padlocks on the van. For commercial premises with three to six external access points, all locks can typically be assessed and upgraded in a single visit. For larger premises with many access points, we may split the work across two visits. Call 01572 503203 to discuss your specific premises and we will confirm the most efficient approach.
Should I upgrade at the same time as a lock change?
Yes — always. If you are having locks changed for any reason (staff departure, end of tenancy, post break-in), upgrading to TS007 or BS3621 standard at the same time adds only a modest additional cost but provides significantly better security and ensures insurance compliance from that point forward. A lock change is the most cost-efficient moment to upgrade. See: Commercial Locks Changed • Commercial Hub • Contact us
Other Commercial Services
Upgrade Your Commercial Locks to Insurance Standard
BS3621 & TS007 3-star certified locks fitted across Rutland and the East Midlands. Written spec confirmation provided for your insurer.