Burglar-Proof Your Home: 10 UPVC Window Security Tips

8 min read
Secure uPVC window with lock
Image source: Ivanova Natalia / Shutterstock.com

In an era where home security is of paramount concern, safeguarding your home from potential threats should be a top priority. Among the various aspects of home safeguarding, ensuring the security of your uPVC windows is crucial.

Burglars often see these windows as vulnerable entry points, making it essential to bolster their safety. In this guide, you will find out how to make uPVC window more secure , so keep on reading.

Install key-operated locks

To reduce the risk of a break-in, many insurance companies require key-operated locks to be installed on all downstairs windows. These locks are typically locked using common keys, which can be easily replaced when necessary. So, if you’ve been wondering whether these locks are worth it, they certainly are and can help improve your window’s security.

However, older timber windows often only contain a simple catch or friction stay rather than the key-operated lock. To increase the security of such old windows and comply with the insurance regulations, you can opt for retrofitting additional key-operated locks.

Consider multi-point locking mechanism

When it comes to uPVC window security, basic locking mechanisms may not offer the high-level of protection from intruders you are aiming for. Since a simple lock may have only one or two points of contact, it may still be easily opened by intruders.

UPVC windows can be reinforced with a more comprehensive locking system that consists of multiple contact points. By securing windows in at least three places – top, centre and bottom – it’s almost impossible for intruders to gain access. Also, having upper window locks is a great way to stop children from opening the windows.

Read also:

How to Childproof Your Home

Look into lockable ventilation and night vents

Having trouble choosing between security and ventilation? The secure night vent provides tested protection from intruders while still allowing air to pass through the window.

Not only does the window remain unchanged after installation, but it is also ideal for retrofitting. No matter the time of day, leaving your home no longer needs to come with worrying thoughts – with this system, you can leave the window slightly open with peace of mind.

Get window opening restrictors

Safety should always come first, and that is why many people choose to install window restrictors. Especially beneficial for those with small children, these devices limit how far the windows open, preventing any potential falls from above ground level. These devices, together with the friction hinges, are designed to secure the opening and closing of the window.

Yet it’s important to remember that although they ensure safety within the home, they can also hinder escape in cases of emergency. So, leaving one unrestricted window as a fire escape is essential.

Fit stops on sash windows

To benefit from a pleasant breeze and improved ventilation, putting stops on your sash windows is also an option. Window stops are an excellent way to improve the security of your sash windows, as they will stop burglars from opening the windows wide enough to fit through and enter your home.

Still, it’s always a good idea to shut and lock your windows whenever you leave home for an extended period of time.

Put sash jammers on uPVC windows

Sash jammers are effective restrictors that can be installed on both uPVC windows and doors. They are easy to install, yet may need replacing after some time as they can become worn out. However, it is important to keep the sash jammers in good condition and replace them as soon as they start to come loose.

Read also:

Guide to Enhancing uPVC Door Security: Tips and Best Practices

Install a window sensor alarms

Another way to improve the UPVC window security is to install a sensor alarm. Installing one of these alarms on any type of frame can be an effective deterrent for anyone attempting to break in. When activated, the alert will sound, warning potential burglars that entry is not being tolerated.

Consider window film

Security window films are made from a high-tenacity polyester film bonded with special adhesives so it can hold the weight of a window glass if it gets broken. They come in a variety of thicknesses. Most films are 4 mils (100 microns) to 14 mils (350 microns) thick and come in various roll lengths. In general, thicker films are stronger and more resistant to tears, breaks, and punctures.

When choosing window film for security reasons, look for a protection layer that will minimise shattering in case of break-ins. Low-quality films can easily fade, so consider choosing fade-resistant films so you can use them for years to come. On average, the security windows films last over 15 years.

Window film not only adds an extra layer of protection to your uPVC windows but also offers additional benefits such as UV protection and increased home energy efficiency. This transparent film can make it more challenging for intruders to shatter the glass.

Read also:

A Guide to a DIY Home Energy Audit for UK

Benefit from window grilles and bars

Although not very attractive, security grilles on windows are an effective measure of fortifying any building from potential intruders. No matter how much glass is smashed, these grilles will ensure that access to the property itself is denied.

Need help securing your uPVC windows?

Get help from a skilled locksmith.

Learn more

Need help securing your uPVC windows?

Get help from a skilled locksmith.

Learn more

So far, we’ve covered some of the most common ways to secure your UPVC windows, but do you know that the different types of windows and glazing can also improve your security?

What are the most secure windows for a house?

The levels of window security may vary due to the glass specifications. Whether you choose to replace the glass with laminated, double or triple-glazed, you will increase the safety of your property. So, let’s dive into the different options you can choose from.

Internally beaded windows

Window frames which are internally beaded feature the beading on the inside, so it is only visible from within the house. This type of frame offers enhanced security since anyone attempting to remove the glazing from outside cannot access the beading strip. Furthermore, this makes it impossible for intruders to remove window units from outside.

Tip: Externally beaded windows are prevalent in older units. Unlike internally beaded ones, these can make burglars’ jobs much easier as they can remove glazing from outside the building without needing to break through any glass. If your windows are externally beaded, and you want to minimise the risks of break-ins, we recommend considering the idea of upgrading them with internally beaded.

Windows with laminated glass

Laminated glass is an excellent choice for uPVC windows as it is more resistant to breaking compared to standard glass. When potential burglars encounter laminated glass, they are less likely to succeed in smashing through, thereby deterring them from attempting a break-in.

Double and triple-glazed windows

Upgrading to double- or triple-glazed window glass is a smart solution. It effectively improves your house’s protection against potential break-ins, creating an impenetrable barrier. For even more robust security, triple glazing ensures any unwelcome guests will not be able to get in without being noticed.

Reinforced window glass

When it comes to high home window security, one of the best things you can do is invest in reinforced or tempered glass instead of standard glass. Doing this will make it much harder for someone to break through a window. As more force will be necessary to get through, this will likely create quite a bit of noise, increasing the chances of catching the intruder

When choosing windows for your property, no matter whether it’s old or new construction, we recommend selecting a design that has PAS 24:2016 accreditation. This standard of quality is used to assess the security of a window and ensure it meets industry standards.

The products which have been granted this accreditation have been tested by an independent authority on their strength and resistance against potential intruders. Not only does this factor in the lock, but it also takes into account the frame and glazing units.

Read also:

13 Tips for Improving a Conservatory’s Security

A few more home security tips:

Install CCTV system

Security cameras act as both a deterrent and a source of evidence in case of a break-in. Place cameras strategically, covering all potential entry points, including your UPVC windows.

Most security systems allow you to access live feeds remotely. To get the most out of your CCTV system, hire a professional locksmith to do the job.

Secure your door locks

Improving your window’s security should not be a single action. That’s why it’s important to secure every possible entry point. Faulty locks, loose hinges or any other problem you may have with your front door may put you at risk. So whether you need a lock replacement, repair or upgrade, turn to a reliable locksmith who will complete the job according to all regulations.

Read also:

How to Secure Patio Doors: A Comprehensive Guide


In conclusion, securing your home’s uPVC windows is a vital step in safeguarding your family and belongings. By following the previously mentioned ten uPVC window security tips, you can significantly reduce the risk of break-ins and create a safer living environment for yourself and your loved ones.

Remember that a comprehensive approach to home security, including window locks and various restrictors, as well as a CCTV system, can make your home an unattractive target for burglars.Now that you are armed with this expert knowledge, you can take proactive steps to secure your UPVC windows effectively.

Looking for a reliable locksmith near you?

Enter your postcode to view our rates and availability in your area.

Enter your postcode

For questions about the services we offer visit our main site or you can always call us at 020 3404 4045

Sign Me Up for Fresh Updates I want to have fantastic stories delivered straight to my inbox for free.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Pin It on Pinterest