Commercial window shutters are one of the most effective physical deterrents for a shop front, office building or hospitality venue. They protect against forced entry, vandalism and opportunistic theft.
But not all window shutters are built equal. Choosing secure window shutters for your building means understanding the options available, the materials involved and what genuine security performance looks like.
In this guide, we cover everything you need to know when choosing commercial window shutters, including types of window shutters and their ideal applications.
What are commercial window shutters?
Commercial window shutters are secure, purpose-built barriers fitted to the exterior or interior of windows to prevent unauthorised access. Unlike decorative shutters, security-grade products are designed and tested to resist forced entry.
For commercial premises, window shutters serve several important functions:
- They prevent break-ins by making forced entry significantly harder and slower
- They act as a deterrent by providing a visible signal that your building is protected
- They protect glass from vandalism and accidental damage
- They can reduce insurance premiums by demonstrating a higher level of physical security
Used across commercial environments, security window shutters are an investment in the safety of your premises, stock and assets.
What makes a window shutter genuinely secure?
Here’s what you should be looking at when choosing window shutters for security.
Construction and material. Secure window shutters are manufactured from robust materials — typically steel or aluminium. They have interlocking slats designed to resist leverage, cutting and impact. The thickness of the material also matters, with thicker shutters offering greater resistance.
Locking mechanisms. A security window shutter needs more than a padlock. Look for shutters with multi-point locking systems and anti-lift features that prevent the shutter from being forced upwards from the bottom.
Security ratings. The most secure window shutters are independently tested and rated to recognised standards, such as LPS 1175. Ratings indicate the level of attack a product can withstand and for how long.
Professional installation. To provide the right level of protection, your commercial window shutters have to be installed correctly. Careful measurement, alignment and fitting of locking mechanisms is essential if you want your shutters to work well, last a long time and provide an effective defence.
Steel vs aluminium window shutters
The two most common options for metal window shutter materials are steel and aluminium. Each has its own advantages.
Steel window shutters offer maximum strength and are typically the preferred choice for high-risk environments — like jewellers, convenience stores and hospitality businesses. Basically, anywhere with high-value stock, cash on the premises or a higher-than-average break-in risk.
Steel is heavier than aluminium, and less flexible in terms of finish options. But for sheer resistance to forced entry, it’s hard to beat.
Aluminium window shutters are lighter and more rust-resistant. They’re also available in a wider range of finishes and colours because aluminium lends itself well to powder coating. This makes them a popular choice for retail shutters where business curb appeal and security are considerations.
While not as strong as steel, modern aluminium shutters can achieve impressive security ratings while remaining visually unobtrusive during business hours.
Manual vs electronic window shutters
How your shutters operate is just as important as what they’re made of — particularly in busy commercial premises where shutters may be opened and closed multiple times a day.
Manual shutters are operated by hand, typically using a crank, a pull strap or a spring-assisted mechanism. They’re a cost-effective option for lower-traffic buildings or where power supply to the shutter location is limited.
The trade-off is convenience — manual operation takes time and physical effort, which is a particular consideration for large or heavy shutters.
Electronic window shutters are motorised and operated by a switch, remote control or access control system. Opening and closing is faster and more consistent. Electronic shutters can also be programmed to operate on timers and can integrate with your building’s smart systems.
In buildings where shutters are opened and closed regularly, and for large openings, electronic window shutters are often the better option.
Internal vs external window shutters
Commercial window shutters can sit inside or outside your building. So what are the pros and cons of each?
External window shutters are fitted to the outside of the building, acting as the first physical barrier against forced entry. They offer the highest level of security and weather protection — and they’re the standard choice for most commercial applications.
Internal window shutters are fitted inside the building, behind the glass. Because the window itself remains exposed, they offer less resistance to initial forced entry, but they can still provide a significant secondary barrier.
The key benefits? You don’t need planning permission for internal shutters and, because shutters are less exposed to the elements, you can reduce roller shutter maintenance requirements, too.
For most commercial premises, external shutters are the right choice. But for listed buildings and conservation areas, internal window shutters are a solid second best.
The benefits of vision window shutters
Standard solid window shutters offer maximum security — but they come with a trade-off for retail businesses. Once closed, they block visibility entirely, which can make a shopfront look uninviting.
Secure vision shutters address this issue and come in a couple of different forms:
- Perforated window shutters feature small holes punched through shutter slats.
- Punched roller shutters have larger, rectangular punched holes.
When closed, vision window shutters allow light to pass through. They also maintain visibility of your window display. They keep your shopfront and products on show even when premises are locked up for the night.
Both options can achieve good security ratings — though for the very highest risk environments, solid steel shutters remain the strongest specification.
Choosing the right commercial window shutters for your building
The right commercial window shutter depends on a combination of factors — and getting the decision right from the start saves time, cost and frustration further down the line.
Here are a few considerations:
Your risk profile. The higher your risk, the more robust your window shutters need to be. Consider the value of the cash and stock on site, whether the building is in a busy or isolated location, and crime levels in your local area.
Planning restrictions. Some conservation areas don’t allow businesses to install external window shutters. Find out whether your building faces any restrictions to decide whether internal window shutters are the best option.
How the building is used. Is your building in constant use? Is it closed up for long periods? How many times do you need to open and close shutters during the day? For shutters that will be used multiple times a day, ease of operation is a top consideration.
Aesthetics and visibility. For customer-facing premises, how your shutters look matters too. Vision shutters maintain some visibility of your shopfront when closed, while powder-coated finishes can complement your building’s appearance.
Budget and long-term value. Upfront cost is another consideration when choosing commercial window shutters. But durability, maintenance requirements and the cost of a potential break-in should all factor into your decision.
Get commercial window shutters — and expert security advice — from SDS
At Secure Door Systems, we supply and manufacture a full range of commercial window shutters — aluminium and steel, manual and electronic, internal and external, vision and solid. We then install them to exacting standards across retail and commercial premises throughout the UK.
Want advice on which security shutters are best for your business? Get in touch with the team for expert guidance and a no-obligation quote.
Commercial window shutter FAQs
How secure are window shutters?
Security window shutters are an effective physical deterrent for commercial premises. The level of security depends on the product specification, materials and installation quality.
Independently rated shutters — tested to standards such as LPS 1175 — offer the most reliable security performance.
Are aluminium window shutters as strong as steel?
Modern aluminium shutters can achieve high security ratings and offer excellent resistance to forced entry. However, for the very highest risk environments, steel shutters offer greater strength and resistance. The right choice depends on your building and business requirements.
Can window shutters be automated?
Yes. Electronic window shutters are motorised and can be operated via switch, remote control or access control system. They’re a popular choice for commercial premises where ease of operation is a priority.
How do I maintain commercial window shutters?
Regular visual checks should be carried out to identify damage, misalignment or signs of wear. Locking mechanisms and motorised components should be serviced by a qualified engineer at least once every six months. SDS offers maintenance and servicing plans to keep your shutters in full working order.
