Protect Your Windows from Burglary

Windows are one of the most commonly used entry points during burglaries in single-family homes and apartments on lower floors. Effective window security is not about a single solution but a combination of several elements: robust hardware, appropriate glazing, key-lock handles, thoughtful ventilation, and – equally important – proper installation. Below, we present specific criteria to consider when choosing or upgrading windows, whether you plan to replace the joinery or enhance the security of already installed windows.

Anti-burglary hardware – the first line of defense

Perimeter hardware is the mechanism responsible for closing the sash at several points around the entire frame. In a standard window, the number of locking points is often limited, making it easier to pry the sash with tools like a crowbar or screwdriver. In windows designed for enhanced security, an increased number of locking points and reinforced strikers are used, which work with the hardware around the entire sash, not just at the handle.

The T-Comfort, T-Classic, T-Classic Plus, T-Perfekt, and T-Energy models can be configured with hardware that enhances resistance to prying attempts. When choosing a configuration, it is worth asking the advisor about the available hardware options for a specific model – not every option is available in all color or size variants.

The technical condition of the hardware over time is also crucial – even the best mechanism loses effectiveness without adjustment. The pressure of the sash against the frame should be periodically checked, and the hardware cooperation points lubricated to maintain full functionality throughout the window's lifespan.

Glazing with enhanced resistance

Hardware alone is not enough if the glass shatters upon impact in seconds. BUDVAR PVC windows use glazing units that can be configured with elements of increased resistance to penetration and breakage. It is important to remember that thicker glass does not always mean greater security – the type of glass and the method of lamination matter, not just the number of millimeters.

When choosing a glazing unit for anti-burglary protection, it is good practice to inquire about the availability of enhanced resistance glass for the selected window model – the offer varies depending on the series and dimensions. This information should also be included in the product documentation, allowing the user to verify the parameters of the installed glass after installation.

For the most exposed rooms – ground floors, terraces, areas not easily visible from the street – it is worth considering enhanced resistance glass as part of the entire security package, not as a standalone solution.

Key-lock handles – a simple yet effective element

A handle with a key lock prevents the window from being opened from the inside without a key, which is important not only in the event of an attempted burglary from the outside but also for windows accessible to children on higher floors. In an anti-burglary context, a key-lock handle acts as an additional barrier – even if an intruder manages to damage the hardware, a locked handle hinders further manipulation of the sash.

This solution is particularly worth considering for ground-floor windows, windows opening onto a balcony, and rooms with easier external access – e.g., windows above a garage roof or extension.

A key-lock handle is an element that can be ordered as additional equipment regardless of the chosen window model.

Ventilators and micro-ventilation and security

Room ventilation is often mistakenly perceived as a weak point in security. In practice, ventilators mounted in the window frame or the upper part of the sash are small in size, preventing physical entry – their role is air exchange, not creating an additional access point.

Similarly, micro-ventilation, which involves slightly opening the sash without fully opening it, leaves a gap too small to pose a real threat. However, it is important to remember that a window in the tilted position (not micro-ventilation, but full tilt) is a completely different situation – here, the risk increases because some burglary techniques exploit the tilted sash.

The rule is simple: ventilators and micro-ventilation do not reduce security, but leaving a window tilted in the absence of household members does.

Installation determining real resistance

Even the best-equipped window will not fulfill its security role if poorly installed in the opening. The spacing of connectors securing the frame to the wall is usually a general industry guideline of 70–80 cm, and the first connector is typically located about 10–15 cm from the frame corner – these values can vary depending on the design, window dimensions, and substrate, and smaller spacing or ignoring this rule weakens the entire structure, regardless of the hardware used.

In problematic substrates, such as ceramic blocks (e.g., Porotherm) or aerated concrete, standard expansion bolts may not provide sufficient load-bearing capacity. In such cases, dedicated chemical anchors or mechanical connectors with a larger support area are used to ensure secure anchoring of the frame in a material with lower strength. The decision on the choice of connectors is best left to the installation team, who will assess the type of substrate on-site.

After installation, it is worth verifying the seal between the frame and the wall and the condition of the gaskets – leaks may indicate not only heat loss but also insufficient sash pressure, affecting closing effectiveness.

Habits and additional protection systems

Technical window security is one thing, but the daily habits of household members are equally important. Locking windows with a key every time you leave the house, even briefly, eliminates the simplest opportunity for burglary. It is also advisable to avoid leaving windows open on sides not visible from the street or yard, where a potential perpetrator acts without witnesses.

An additional protection element can be the integration of windows with an alarm system – contact sensors informing about sash opening and shock sensors reacting to an attempt to break the glass. BUDVAR offers Smart Home solutions for doors; for windows, it is worth considering integration with an external alarm system as a complement to mechanical security.

The last, often overlooked element is the regular technical inspection of windows – once a year, it is worth checking the operation of the hardware, sash pressure, and gasket condition, preferably during seasonal adjustment for winter/summer mode. It is also important to remember that increased burglary resistance is always an additional window configuration option, not a standard equipment element – the range of available reinforcements should be determined with the advisor for the specific model and dimensions.