Safe Living with Style:

How Modern Windows Combine Design and Burglary Protection in Austria & Germany?

When you think of security, you probably picture heavy doors, alarm systems, or cameras. But what many forget: In break-ins across Germany and Austria, intruders most often gain access through windows and patio doors. Ground-floor windows, balcony doors, or poorly visible side areas are particularly vulnerable – especially when they’re not properly secured.

Security without sacrificing style – it’s possible today

The good news: You don’t have to give up style or natural light to protect your home. Modern window solutions now combine high security standards with elegant aesthetics and suit both historic renovations and new construction. In this article, we’ll show you what really matters when it comes to burglary protection – and what the technical, legal, and practical standards are in Austria and Germany.

Why are windows the No. 1 weak point?

According to crime statistics from the German Federal Criminal Police (BKA) and the Austrian Federal Criminal Police Office, around 70 to 80% of all break-ins occur via windows or patio doors. Often, a simple screwdriver is enough to pry open unsecured windows in just seconds.

It’s important to know: Most burglars are not professionals, but opportunists. They usually give up quickly if they can’t gain entry within 1 to 3 minutes. The goal isn’t to make windows impenetrable, but to delay entry and deter the attempt.

What really makes a window secure?

Burglar-resistant windows often look very similar to standard models. Their true strength lies in sophisticated technology and precise engineering. The key is the interaction of multiple safety components – depending on the resistance class (RC) according to DIN EN 1627.

1. Mushroom-head locking – the core of mechanical protection

Modern security windows feature so-called mushroom-head locking bolts, which hook securely into strike plates in the frame when the window is closed. Unlike standard bolts, they resist being pried open by wedging instead of giving way. An RC2-certified window typically includes at least four of these locking points – evenly distributed around the sash.

The more mushroom-head locks – ideally all around the sash – the better the burglary resistance.

2. Reinforced frames, fittings & installation – the structural backbone

A secure window frame should ideally be made of multi-chambered, steel-reinforced PVC, thermally separated aluminum profiles, or hardwood-reinforced composite materials. Key aspects include:

Steel reinforcements in sash and frame profiles
Security fittings with hardened bolts and anti-pry protection
Screw-fastened hardware through multiple profile chambers
Approved installation materials (e.g., special dowels, mounting foams)

Only when frame, fittings, and wall connection are professionally installed and inspected can the window reliably fulfill its security function over time.

3. Security glass – a barrier, not a weak point

Another crucial factor is the glazing. Two main types are commonly used:

Laminated Safety Glass (VSG): Two or more glass panes are bonded with a tear-resistant film (e.g. PVB). If broken, the shards stick to the film – the pane stays intact as a unit.
Tempered Safety Glass (ESG): Thermally toughened glass with enhanced bending and impact resistance. If shattered, it breaks into small, blunt pieces, reducing injury risk.

For burglary-resistant windows, VSG with EN 356 certification (minimum P2A) is required from RC2 onwards – optionally combined with ESG or polycarbonate layers for enhanced protection.

4. Lockable and drill-resistant window handles

Window handles with locks prevent the handle from being turned from outside – for example, through a drilled hole. For RC2 windows, a lockable handle with at least 100 Nm pull-off resistance is mandatory.

Additional protective features include:

Drill protection made of hardened steel or manganese
Auto-lock mechanism (handle can only be turned when locked)
Ergonomic yet durable design

Interaction is key

A truly secure window always works as a complete system: Frame structure, glazing, locking mechanism, and professional installation must all work together. Only if all components are tested and certified according to standards can consistent protection be ensured.

Resistance classes by RC (DIN EN 1627)

In Austria and Germany, the same standards apply for burglar-resistant windows, defined by DIN EN 1627. There are seven resistance classes:

RC1N: Basic protection against physical force (e.g., kicking, shoulder ramming)
RC2: Protection against intrusion attempts using simple tools (e.g., screwdriver) – recommended for private homes
RC3: Higher protection against systematic attempts with multiple tools
RC4 to RC6: For commercial or high-security areas

For private homes in quiet areas, at least RC2 is recommended; for exposed locations (e.g., isolated houses, city villas), RC3 is advisable.

Special considerations in Austria

There is no nationwide requirement for security windows in residential buildings in Austria – but there are subsidies and insurance incentives:

Burglary protection subsidies at the state level
Some federal states (e.g., Vienna, Styria) support security measures like safety glazing or RC2 windows with direct grants or low-interest loans.
Insurance companies
Many Austrian home insurance policies offer discounts or higher coverage if certified safety measures are in place. RC2 is often the minimum standard for compensation eligibility in case of damage.

Focus on safety: Germany

In Germany, there is no general legal requirement, but clear recommendations by police and VdS Schadenverhütung. Police advisory centers generally recommend windows from RC2 upwards, especially for:

Single-family homes
Patio access points
Ground-floor apartments

There are also government support programs, such as:

KfW Grants for Burglary Protection (Program 455-E)
This program offers up to €1,600 in grants for retrofitted safety measures (e.g., RC2 windows).

⚠️ Note: This program is currently active – but government subsidies may change or expire. Please check with KfW or police prevention sites for the latest updates.

Can security meet style?

Absolutely! Modern security windows are designed to be visually indistinguishable from standard models. Especially with custom-made wood or box windows, security fittings, concealed locks, or burglar-resistant glazing can be integrated seamlessly – without altering the character of your home.

Tips for more security – even without a full renovation

You don’t have to replace everything – many improvements can be retrofitted:

Upgrade kits for window handles and hardware (e.g., from ABUS, IKON)
Window frame alarm contacts – discreet yet effective
Motion sensor lighting around the house
Additional window locks – especially useful for children’s rooms or holiday homes
Regular maintenance: A loose handle or faulty lock can compromise even the best window.

More protection, more peace of mind – without compromising style

A secure window doesn’t have to be bulky, heavy, or unattractive. Today’s windows offer it all: insulation, design, heritage protection – and effective burglary resistance. Especially in times of rising break-in attempts, it’s an investment in your peace of mind.

Whether you're renovating, building new, or simply looking for more peace of mind – at Nobelwerk, we offer personal consultations for secure, stylish window solutions with certified technology and true craftsmanship.

Make your home a safe haven – beautiful inside, protected outside.

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