OVAGLAS, Author at OVAGLAS

12 Feb 2026

A Buyer’s Guide to Security Window Film

Security window film is an effective and efficient way to improve the security of your building, something that is particularly important for commercial properties. Not only do many businesses keep a lot of valuables on site, but they may also handle sensitive data that needs extra protection.

No matter the size of your business premises, from small shops to office blocks, security should be a top priority – we’ve put together everything you need to know about security window film.

What is security window film?

Security window film is a thin, durable self-adhesive film that is applied directly to glass surfaces. The main purpose of security films is to keep shattered glass in the window frame in the event of impact – whether that be a break in or a bomb blast – to reduce the risk of injury and prevent potential intruders getting access to your property.

What are the benefits of security window film?

Windows can be a weak point in the overall security of a building, as they can be easy to break. Security window film helps to reinforce your existing glass windows to make them more resistant to breakage, and if they do shatter, it holds the glass shards in place. Not only does this prevent potential damage and injury from broken glass, but as the glass is still intact in the frame, it doesn’t give entry to any would-be intruders.

It’s not just effective against break ins – security window film can also provide shatter resistance in the event of accidents, natural disasters or even bomb blasts, which is of a particular priority for high-profile businesses, or those with a large public presence, such as government buildings.

Although extra security is, of course, the main benefit of window film, it can also offer UV protection by filtering out harmful rays. Not only does this reduce the risk of skin damage, but it can also prevent furniture fading. Some films can also improve a building’s energy efficiency by reducing heat transfer, which can lead to lower energy costs.

Plus, as window film is transparent, it maintains the overall aesthetic of your building – metal window bars aren’t exactly the most visually appealing choice, so glass safety film can provide protection but without impacting the look of your property! It’s a lot more budget friendly too, which is ideal for businesses with a lot of windows to protect.

Types of security window film

Security window film is quite a broad category, and within it are a few different options that you can choose according to what your business needs. Clear security film is totally transparent, bringing extra security to your windows but with no obstruction to the view and without sacrificing natural light.

Tinted window films provide the same level of glass protection, but have the added benefit of reducing glare and helping obscure the view into a building for extra privacy. For even more privacy, reflective security film has a mirrored appearance that can protect your business from prying eyes.

Choosing security window film

Every business will have different security needs, so picking the best window film isn’t a one-size-fits-all solution. You’ll need to think about…

The level of security you need

Some businesses will be more at risk of break-ins or attacks than others, such as banks or data centres, so a thicker window film such as a bomb blast film that can withstand very high impact would be ideal. For lower risk businesses, standard security films would do the trick, as they still offer great protection against glass breakage.

The location of your business premises

Businesses in populous, urban areas are at a higher risk of theft and vandalism, so a more robust window film or a tinted window film may be a better choice. Similarly, a business that is located in an area that is more prone to storm damage or other natural disasters may be better suited to a thicker safety film.

How much privacy you need

Handling a lot of sensitive data? A tinted or mirrored safety window film can help to shield the inside of your property from onlookers for extra privacy, whilst still letting in enough natural light.

Your budget

Window film is far more cost effective than other options, such as installing safety bars or replacing your existing windows with reinforced glass. Plus, you can weigh it up against long-term cost savings that come with installing window film, such as avoided repair costs or reduced energy bills.

Your building’s regulations

You might have to adhere to strict building codes or health and safety standards, so you’ll have to be sure that the film you choose meets these.

Security film installation

Some things are best left to the professionals, and installing window film is definitely one of them – proper installation is key to ensuring that your security film serves its purpose. Getting your window film professionally fitted means there will be no peeling, warping or air bubbles, which can be tricky for DIY fitters to avoid. If it’s not fitted properly, your window might not be fully shatter resistant and may not adhere to warranty terms, so we’d always recommend letting the experts do it for you. Thankfully, we’ve got years of experience working on projects of all sizes, so we’ll take care of the installation process for you.

If you have any questions about our security window films – or any of our other products – get in touch with our team and we’ll be happy to help.

06 Feb 2026

A Buyer’s Guide to Privacy Window Film

Privacy window films are a cost-effective and easy way to bring extra privacy to business premises, but without sacrificing natural light. Window films are ideal for commercial properties, and can be used on both exterior and interior windows, such as boardrooms and private offices.

If you’re new to the world of window film, you’re in good hands – we have put together our guide to privacy window film and if it’s right for your business.

What is Privacy Window Film?

Privacy window film is a thin, adhesive film that can be applied to the interior and exterior windows to create extra privacy. It’s particularly popular with businesses as it brings added privacy and security but without blocking light the way that curtains and blinds can.

How Does Window Film Improve Privacy and Security?

Obscures the view inside

Privacy window film obscures the view into your business, making it harder for potential intruders or prying eyes to see inside. If a passerby can’t see what’s inside your commercial premises – whether that’s expensive equipment, sensitive documents or anything else of value – window film reduces the temptation for break-ins or theft.

Deters theft

Some window films, particularly those designed for security, reinforce the glass and make it harder to shatter. These thicker, more durable films, known as security window films, hold glass together in case of breakage. Even if an intruder tries to break the window, the film makes it significantly harder to gain access through the window, giving your security guards or the police more time to respond.

Protects against vandalism and damage

Privacy films, particularly those applied on the exterior, can protect your windows from vandalism like graffiti or scratching. If your business is situated in an urban area that gets a high amount of foot traffic, it’s a lot cheaper to replace damaged window film than it is damaged windows!

UV protection

Although it’s not strictly security related, privacy films also block UV rays, reducing fading and damage to interior furnishings. Some films also strengthen glass, protecting against accidental shattering, which contributes to a safer and more secure working environment overall.

Why Should Businesses Consider Privacy Window Film?

Enhanced security

The main reason most businesses would benefit from window film is because they provide an added layer of security to commercial properties, by preventing outsiders from viewing sensitive business operations, data, or inventory. This is particularly useful for offices, banks, and shops.

Energy efficiency

Many privacy films offer added solar control benefits. Window films can help to maintain a more comfortable temperature, as they can help to reflect a percentage of solar energy before it can pass through the window. On the other hand, they can also add an extra layer of insulation to keep more heat in during the colder months. Both of these functions can help businesses to save on energy bills, but without compromising on natural light.

Regulatory compliance

For businesses handling sensitive information, such as law firms or healthcare facilities, privacy window films can help meet privacy regulations by shielding computer screens or office spaces from view.

Does Window Film Work at Night?

We’re often asked if privacy window film works at night, as this is when most business premises are left unoccupied. The answer actually depends on the type of window film.

Privacy window films that rely on reflectivity, such as mirrored or reflective window film, are less effective at night if the lights inside the building are on. In low-light conditions, the reflective effect is diminished, and people can see inside. However, frosted films, switchable smart films, and opaque films provide privacy regardless of lighting conditions. If you do require more privacy at night, we would recommend adding an extra layer of privacy with blinds and curtains.

Types of Privacy Film for Office Windows

The best type of privacy window film for your business totally depends on what you’re hoping to achieve by installing it. OVAGLAS offers a range of window films that are suitable for offices and commercial premises.

Casper™ Cloaking Technology Window Film

Casper™ Cloaking Technology is designed to obscure digital screens, making sensitive information on monitors invisible from outside while maintaining the transparency of the glass. This type of window film is ideal for conference rooms, as it prevents passersby from viewing confidential data.

Contra Vision® Switchable Smart Film™

This innovative privacy film can switch between transparent and opaque with the touch of a button. Contra Vision® Switchable Smart Film™ is perfect for areas where businesses want control over privacy, such as meeting rooms or customer-facing spaces. It’s also popular amongst a range of industries, including healthcare, museums and hospitality.

Reflective and Frosted Window Film

Reflective films work by creating a mirror-like appearance on the outside, blocking views into your building during the day but still allowing light in, and without obstructing the view outside. Frosted window films, on the other hand, provide permanent privacy by diffusing light, making them suitable for bathrooms, glass partitions, or shop fronts.

Exterior Window Film

Exterior privacy films are applied to the outside of buildings, providing a durable option for privacy and solar control. These films often feature UV protection and help reduce glare, and ensure that employees or customers enjoy a more comfortable working environment.

Privacy Window Film Specialists

OVAGLAS is a global specialist in glazing enhancements. From helping you choose the right privacy film for your property to carrying out expert installation, you can always have total peace of mind that you’re working with the best.To find out more about our privacy window film, or to discuss your business needs, get in touch with our team and we’ll be happy to help.

12 Jan 2026

Will Window Film Reduce My Energy Bill?

‘Solar window film’ might sound like something that would only benefit your business during the summer, but did you know what window film is actually just as helpful in winter?

A surprising amount of heat can be lost through windows, which can mean being faced with hefty heating bills. Energy saving window films can significantly reduce this, acting as an extra layer of insulation without the expense of replacing your windows.

How does energy saving window film work?

Energy saving window film blocks or reflects the heat and UV radiation from sunlight. Most window films are made of a thin, layered polyester and an extremely thin metallic coating, such as silver or nickel, which can regulate thermal radiation. The film can absorb or reflect some of the ultraviolet (UV) and infrared rays in sunlight, which minimises the amount of heat that can enter a room.

By reducing heat transfer and adding extra insulation to a window, window films can also effectively reduce heat loss and drafts.

Does window film save energy?

Window film can be very effective at saving energy, and consequently saving money on energy bills. In the winter, solar window films can provide insulation by reflecting heat from the sun back into the room, so you can use less heating. When it’s warmer, window film reduces solar heat gain as it reflects or absorbs harmful rays, which minimises the need for air conditioning. All round, the year-round temperature regulation offered by window films can have a significant impact on energy bills by reducing energy consumption.

Plus, as it blocks UV rays, energy saving window film can also help stop furnishings from fading in the sunlight, which can mean saving money on replacing them.

Does solar control window film work in winter?

Despite its primary function of reducing heat from entering a building in warmer months, some solar films can also provide window insulation in winter. They reduce heat loss through the windows by reflecting heat back into the room, which helps to keep it warm. In turn, this contributes to energy savings by reducing the need for heating – great for businesses that are trying to reduce their carbon footprint.

What are the benefits of energy saving window films?

Reduced heat loss – When it’s cold outside, you’ll want to do everything you can to keep the heat in! Around 18% of heat loss in office buildings* occurs through windows, so applying window film is a quick and simple way to minimise this.

Improve thermal insulation – As energy efficient window film works as a thermal barrier when applied to windows, it helps to keep heat in your commercial property, leading to a more comfortable and consistent temperature.

Improve EPC rating – As of April 2023, all commercial properties were legally required to have an Energy Performance Certificate (EPC) rating of E or above, with buildings rated on a scale of A to G. Window films can improve this rating by enhancing energy efficiency, as it can minimise heat loss in winter but also reduce solar heat gain during the summer, so your business will be less reliant on both heating and cooling systems.

Reduce glare – Winter sun may not bring much warmth, but it can bring irritating solar glare. Window film can provide protection against it – it will allow natural light in, but filter out the glare that can make it more difficult to see screens or have face-to-face conversations.

Save on energy bills – One of the main benefits of using energy saving window film is that it can help reduce your energy bills. During the winter, you will be able to use less heating, and in summer businesses can be less reliant on air conditioning. The energy savings associated with window films can be substantial – over time it often covers the installation cost of the window film, making it an extremely cost-effective and energy efficient solution.

Does energy window film work on double glazing?

Although double glazed windows already help to reduce heat transfer, installing energy saving window films can add an extra layer of insulation. It further contributes to improved temperature control and energy conservation, as well as reduced energy bills!

Global Glazing Enhancement Specialists

Whether you’re looking to save energy, improve your building security or even just make your windows look better, OVAGLAS specialises in all things glazing enhancements. Get in touch with our team and we’ll be happy to help.

03 Jan 2026

How to Weatherproof Your Windows

Whilst we may not typically experience extreme weather in the UK, a significant amount of property damage can still be caused by high winds, plummeting temperatures and heavy rain.

Most climate projections have indicated that winter storms are going to become more frequent and intense, so it’s better to start protecting your windows sooner rather than later. It’s not just exclusive to winter either, as the British summertime has a habit of bringing less than ideal weather.

Weatherproofing windows is key, as it helps to protect your commercial property from the elements for added peace of mind, and improves energy efficiency, which can significantly lower your energy bill.

However, before you start weatherproofing your windows, you need to be sure which windows might need keeping an eye on, to check if there are any issues that might be impacting their performance. Look for weak points like visible cracks or gaps around the window frame, sudden difficulties closing or opening your windows, or draughts – try running your hand around the window to see if you can feel cold air getting in.

If you spot what appear to be significant issues with your windows, like inadequate materials, obvious damage, poorly fitted frames or condensation, weatherproofing might not be enough. When in doubt, get a specialist in to check your windows, as no amount of weatherproofing can secure a window that needs replacing.

Haven’t spotted anything that needs immediate attention? Here’s our top tips on protecting your windows in inclement weather.

Protecting windows from wind

High winds can cause windows to weaken and shatter, typically from stress to the window caused by pressure changes, or by being hit with debris. We may be lucky enough not to face hurricanes in the UK, but that’s not to say that wind can’t damage your windows.

Before anything else, you should make sure that the area outside your building is free from debris that could be turned into projectiles. Nearby trees and branches – especially dead or overhanging branches – should be kept cut back, as high-speed winds can send them smashing into windows.

Some people suggest taping their windows during high winds, but this is a myth, and a dangerous one at that. Not only does it not offer any protection from debris, but it can actually cause the glass to break into larger pieces, which is extremely dangerous.

The only safe way to keep the shards together is by applying a protective window film. Window films add an extra layer of security to windows and improve the structural integrity by holding the glass in place in the event of an impact. Not only does this prevent your building being exposed to the elements in case of a breakage, but it prevents injuries that would be caused by flying glass fragments.

As well as offering safety film, OVAGLAS can provide further protection to your windows with a flexible anchoring system, a unique glass containment anchoring system that has achieved the highest performance rating of any glazing retention system in the world.

Protecting your windows from rain

Spotted water leaking through your windows after heavy rain? Before anything else, you’ll need to assess the severity of the damage to your windows. If there seems to be any structural problems, like cracks around the window, or the frame seems to be improperly fitted or worn down, you’ll need to get a specialist in to assess the issue.

However, the majority of window leaks are caused by damage to the sealant. If the windows generally seem in good shape, with no obvious cracks, it’s probably missing or damaged sealant that’s letting rain creep in. Sealant is specifically designed to fill small gaps and cracks, preventing water or air getting in, but over time it can break down. If you feel certain that the rain is getting in through a spot on your window frame and the damage is only minor, you might be able to fix it yourself.

Once you’ve spotted the area that is causing the leak, clean the area thoroughly to get rid of any grime and dirt. A silicone-based sealant is generally the best option for window frames, as it’s water resistant. Apply the sealant carefully around the perimeter of your window frame, before smoothing it down for a secure finish. For larger gaps, an expandable foam sealant may be your best bet. It’s important to note that these sealants can only be used for stationary window cracks – moving window sashes will need to be treated with weatherstripping tape.

If you have any doubts, call in the professionals! Water damage can be severe, leading to rot and structural issues, so if the leaks are persistent, you might need new windows fitting.

Protect your windows from the cold

Gaps in the window frame can also let the cold air in, so methods like weatherstripping or sealants can also help to protect your windows from minor draughts.

Proper insulation can keep the panes of your windows warmer, which is ideal in wintery conditions, as the fluctuations in temperature caused by ice build up can even crack the glass in extreme cases. A quick way to add an extra layer of insulation to your windows is by switching out your curtains and blinds for thicker versions, such as thermal curtains. However, these aren’t an ideal option for chillier days, because although you will keep more heat in the room, you will be blocking that much-needed sunlight.

Energy saving window film helps to minimise heat transfer by reflecting and dispersing heat back into the room, which is particularly useful in larger commercial buildings that have a lot of windows and lose a significant amount of heat that way. These window films create an extra layer of insulation by sealing in the air and preventing draughts from getting in, meaning your property will stay at a more comfortable working temperature. You won’t have to rely on central heating as much as a result, which can lead to major savings on your energy bills – plus, in warmer months, solar window films help to keep your property cooler.

Work with the Window Film Experts

OVAGLAS specialises in the supply and installation of window films, working with clients around the globe to improve the performance of their windows. If you’d like to find out more about how we can work with you, or have any questions about our products, we’d be happy to help.

11 Dec 2025

How to Stop Cold Air Coming In

As the days get shorter and warmer days start to feel like a distant memory, you might start to notice a bit of a chill in your property.

Buildings lose a significant amount of heat through their windows – 18% of all heat loss, in fact, so keeping your windows properly insulated is crucial. It’s particularly important if you’re an employer, as HSE states that you are legally required to provide a reasonable working temperature. Anyone who has worked in a cold office can attest that it’s much harder to focus – in fact, one survey found that 87% of employees found working in a cold environment made them less productive. And that’s not even thinking about how much money you’ll (quite literally) be throwing out of the window on heating bills!

Before things start to get even colder outside, we’ve put together our tips on stopping the cold air getting in and the warm air getting out.

How does cold air get in through windows?

There are a number of ways that cold air can seep in through your windows, and you’ll need to be sure what’s causing it in order to prevent it.

One of the most common reasons is because your windows are old and damaged. After years of being exposed to the elements, windows won’t be as effective as they once were, especially if they are more fragile, single-pane windows. If you can see visible damage to your windows, such as cracks, rotting or warped wood frames or condensation between window panes, it might be time for new ones. It may be expensive to replace them, but no amount of quick fixes is going to save windows that need upgrading.

Even if you have newer windows, even small cracks or breaks can let in a steady flow of cold air and impact the performance of your windows. To check to see if your windows have any holes or cracks, you can hold something lightweight like a feather or a piece of paper to the window. If it moves, there is a crack in the window, and cold air can easily get in.

Similarly, another common reason for draughts through windows is because of damaged seals. Visible damage like warping or rotting might call for new windows, but more minor damage can still cause a problem. This is especially true of double glazed windows, as the seals are necessary to keep the airtight gap between the panes.

How to stop cold getting in through windows

Once you’ve identified the cause of the draught, you can take steps to fix the issue.

Switch to double glazed windows

Single-pane windows allow a significant amount of heat to escape a building, as they are very poorly insulated. They are also more prone to cracks and damage, which can let in even more cold.

Upgrading to double glazed windows isn’t exactly a budget-friendly option – especially if you have a commercial property with a lot of windows – but over time, you’ll be saving on your energy bills, as they offer far superior insulation. Double glazed windows comprise two panes of glass with an air gap in the centre, and they reduce heat loss as the trapped air between the panes is a poor conductor of heat and can’t circulate well, which means that less heat is able to escape the room. Getting double glazed windows means keeping warmth in and the cold out – and then in summer, it does the opposite, keeping the interior of a property cooler.

Replace the seals

If you’ve determined that the cold air is getting in through a damaged or broken seal, you just might be able to fix it yourself. Caulking windows seals up gaps and helps to get rid of draughts, and is straightforward enough to use. You’ll need to gently scrape off the existing caulk from around the windows before cleaning and drying the area. Using a steady, smooth motion, carefully apply the caulk around the perimeter of the frame, and then smooth it down.

Before fixing the seals, you’ll need to make sure you’re using the right type of sealant – there are a few different types available, so you’ll have to check you’re using one that is best suited to your windows. Although sealants form an airtight barrier, they aren’t a totally permanent option, as they are broken down over time by factors like UV radiation, extreme temperature fluctuations, high moisture levels and poor installation. As a quick fix for minor gaps, though, it can do the trick.

Try weather sealing tape

Similarly, weatherstripping can be a handy DIY option for minor gaps. They are especially useful for using on moveable components, as they don’t prevent the sliding of window panes. There are a few types of materials available, like rubber and foam, and can tightly fit gaps to create a durable seal. It can be a quick, cheap fix, and can last a couple of years before it needs replacing. However, it only works to target specific gaps, and won’t improve the overall performance of your windows.

Thermal curtains

Thermal curtains create an extra level of insulation, as they are made of thick, multi-layered fabric that acts as a physical barrier to your windows. They can help to trap air leaks that are coming in through the windows, stopping cold air from getting in and warm air from getting out. Most thermal curtains contain a high-density foam layer that can prevent heat exchange, a vapour barrier that blocks moisture, and a reflective film that can direct heat back into the room.

They are a low-maintenance option that can be quite cost effective, but in order to work properly, they do need to be kept closed. Whilst this is great for cold nights, it’s not so ideal during a work day, when we’d ideally want to be soaking in that precious winter sunlight! However, to keep things warmer during the night, thermal curtains can be very beneficial.

Solar window film

Whilst window film might be more closely associated with summer months, and its glare reducing, UV-resistant properties, they can be hugely beneficial in cold weather. They are designed to also address heat loss, so they help to keep rooms warmer. Energy-saving window films work by reflecting interior heat back into the building, so you can rely less on costly central heating. In large buildings with lots of windows, a significant amount of heat can be lost through glazed surfaces, so window films are an effective way to reduce this. Window films help to maintain a more comfortable working temperature, and drastically reduce your electricity bills.

Work with the Window Film Experts

02 Dec 2025

OVAGLAS Expands European Operations with New Warehouse in The Netherlands

We’re pleased to announce the opening of our new warehouse facility in Best, The Netherlands, supporting the continued expansion of our operations across Europe.

As specialists in the supply and installation of window film solutions, this new facility strengthens our ability to deliver projects efficiently for commercial, industrial, and specialist environments across the EU. Our Best warehouse improves material availability, project planning, and operational coordination, enabling us to respond faster and scale more effectively across the region.

Strategically located to support projects throughout the European market, this new site reinforces our commitment to providing reliable service, consistent quality, and strong technical expertise for contractors, facilities managers, and commercial clients.

OVAGLAS EU Managing Director Willem Vrolijk (left) and Group President Stephen Ball (Right)

Stephen Ball, Group President of OVAGLAS, commented:

“The opening of our new facility in Eindhoven, Netherlands will help us to expand our existing operations and improve the service for our European customers. These exciting changes are part of our long term growth plans for OVAGLAS and support our existing operations in the U.K. and the USA.”

Willem Vrolijk, Managing Director EU at OVAGLAS, added:

“I’m very proud and happy with the opening of our location in Eindhoven–Best. The warm welcome from the team and the strong collaboration make this a special moment. It marks the start of the growth we aim to deliver across Europe with OVAGLAS in the years ahead. We expect to significantly grow our team here in the Netherlands and in other countries as we scale up together with our customers. I’m very excited about what we’ve achieved in such a short time and look forward to building the future together.”

With the opening of the Best facility, we take another important step in strengthening our European footprint and enhancing our ability to support customers on projects of all sizes. This investment reflects our long-term commitment to growth, innovation, and service excellence across international markets, ensuring we remain a trusted partner for high-performance window film solutions throughout Europe and beyond.

OVAGLAS

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Latest

What is security window film?

What are the benefits of security window film?

Types of security window film

Choosing security window film

The level of security you need

The location of your business premises

How much privacy you need

Your budget

Your building’s regulations

Security film installation

What is Privacy Window Film?

How Does Window Film Improve Privacy and Security?

Obscures the view inside

Deters theft

Protects against vandalism and damage

UV protection

Why Should Businesses Consider Privacy Window Film?

Enhanced security

Energy efficiency

Regulatory compliance

Does Window Film Work at Night?

Types of Privacy Film for Office Windows

Casper™ Cloaking Technology Window Film

Contra Vision® Switchable Smart Film™

Reflective and Frosted Window Film

Exterior Window Film

Privacy Window Film Specialists

How does energy saving window film work?

Does window film save energy?

Does solar control window film work in winter?

What are the benefits of energy saving window films?

Does energy window film work on double glazing?

Global Glazing Enhancement Specialists

Protecting windows from wind

Protecting your windows from rain

Protect your windows from the cold

Work with the Window Film Experts

How does cold air get in through windows?

How to stop cold getting in through windows

Switch to double glazed windows

Replace the seals

Try weather sealing tape

Thermal curtains

Solar window film

Work with the Window Film Experts

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