Lancashire’s commercial landscape covers a lot of ground: manufacturing and engineering firms around Preston and Blackburn, retail units across the county’s town centres, and a growing number of logistics and office sites feeding the M6 and M65 corridors. Whatever the sector, the same basic question applies to almost every premises: if someone decided to break in tonight, what would actually stop them?
For a lot of businesses, the honest answer is “not much.” UK businesses lost £12.9 billion to burglary and theft last year, and more than a quarter of those burgled lost over £10,000 in a single incident. Security is often treated as something fitted once, when the building was taken on, and never properly reviewed again, even as the stock inside, the layout of the site, or the surrounding area changes.
Why Commercial Premises Are a Persistent Target
Commercial premises are attractive to criminals for reasons that don’t apply to homes in the same way. They tend to hold concentrated value in one place: stock, equipment, cash or IT infrastructure that’s worth considerably more than what’s typically found in a domestic property. Many are also unoccupied for long, predictable stretches, overnight, at weekends, over bank holidays, giving anyone planning a break-in plenty of notice about when a site will be empty.
The financial impact goes well beyond the value of what’s taken. A break-in usually means repair costs, disrupted trading, and often a hit to insurance premiums going forward. Insurers increasingly assess the physical security measures a business has in place when setting terms, so investment in proper security isn’t just about deterring crime, it can directly affect what a business pays for cover.
The Weak Points That Come Up Again and Again
Across commercial premises in Lancashire, a handful of vulnerabilities show up repeatedly:
- Windows and low-level openings with no physical barrier beyond standard glazing, particularly at the rear or side of a building where they’re out of public view.
- Doors and shutters that were adequate for the site’s original use but haven’t been reassessed as stock value or layout has changed.
- No documented servicing schedule for existing security measures, meaning faults go unnoticed until something fails.
- A reliance on alarms and cameras alone, with no physical barrier actually stopping an intruder getting inside in the first place.
That last point is worth dwelling on. Detection systems are valuable for raising the alarm and gathering evidence, but they don’t physically prevent entry. Physical barriers, doors, shutters, and grilles, are what actually determine how far an intruder gets and how long it takes them to get there. A well-specified physical barrier can be the difference between an attempted break-in and a successful one.
Security Grilles: An Underused Layer of Protection
Windows, side doors, and other openings are consistently one of the weakest points on a commercial premises, yet they’re often the last thing to get proper attention when security is reviewed. Security grilles close that gap directly, providing a strong physical deterrent over windows and openings that would otherwise rely on standard glazing alone.
Grilles are available in a few different forms depending on what a premises needs. Fixed steel bar grilles offer a permanent, highly visible barrier for vulnerable windows and openings, ideal for units where a certain area doesn’t need daily access. Retractable concertina grilles offer more flexibility, allowing a business to secure an opening, such as a shopfront, counter, or internal doorway, outside of trading hours while keeping it fully open and unobtrusive during the day. Both are manufactured from high-quality steel and can be specified to meet the requirements of insurers as well as the physical security a site needs, with options ranging from a basic bar structure through to a more decorative design where appearance matters as much as function.
For Lancashire businesses that have never had grilles fitted, or that are relying on an older, lighter-duty version, it’s worth reviewing which windows and openings on site currently have no meaningful barrier at all. Britannia Retail’s range of security grilles covers both fixed and retractable options, giving businesses a practical way to close off exactly the openings that carry the most risk.
Building a Proper Security Specification
Grilles are one part of a wider picture. A genuinely secure commercial premises typically combines several layers: a specified physical barrier at every vulnerable point, whether that’s a door, shutter, or grille, backed up by alarms and CCTV for detection, and a clear plan for how quickly a fault or a break-in gets responded to. None of these layers compensate fully for a weakness in another, which is why a proper specification looks at the whole building rather than treating each opening in isolation.
Businesses reviewing their setup from scratch, or simply making sure existing measures are still fit for purpose, can browse Britannia Retail’s full range of security products to see what’s available across shutters, doors, grilles, and perimeter security before speaking to a specialist about a site-specific recommendation.
A Quick Way to Check Exposure
Before commissioning a full site survey, it’s worth walking the premises and asking a few straightforward questions: are there any windows, side doors, or openings with nothing more than standard glass between the outside and valuable stock? Have any grilles, shutters, or doors on site been there since before the current stock or layout was in place? Is there a record of when they were last checked or serviced? And would staff know who to call if a shutter or grille failed to close properly out of hours?
A “no” to any of these is a reasonable sign that the physical security on site hasn’t kept pace with how the business has changed, and that a proper review is overdue rather than optional.
Getting the Review Started
A site survey is the most reliable way to establish where a Lancashire premises is genuinely exposed, rather than guessing. It identifies which openings currently have no proper barrier, whether existing shutters, doors, or grilles are still fit for the value of what’s inside, and what a sensible order of priority looks like for closing the gaps.
Given how much UK businesses continue to lose to burglary and theft each year, that review is a conversation worth having proactively. It’s considerably easier, and cheaper, to close a gap in a premises’s security before it’s tested than to deal with the aftermath once it has been.




