Burglary protection starts at the windows

Burglary protection starts at the windows


windows let light and air into the house. But without burglary protection they are - too often - entrance for burglars. Appropriate measures prevent this.

Options for retrofitting windows

Many measures offer effective protection against burglary. Generally there are passive and active systems to prevent intrusion.

Professionals talk about mechanical skin protection when it comes to passive protection. These include lockable window handles, protection against external leverage, additional window locks (window-rail lock) as well as shutters and shatter-proof glass.

These burglary-resistant measures make it difficult to penetrate a house. The burglar needs more time, more energy, and noise when opening a secured window. Time, power, and noise are key factors that may cause an intruder to break the intrusion attempt.

Burglary protection is ideally supported by an active system that responds to intrusion or attempt. Active burglary protection includes lights with motion detectors that illuminate the house when someone approaches. Another element of this type of protection is alarm systems that respond to breakage of the window, opening of windows or doors and also to movements in the house.

Each house can be subsequently secured with the mentioned devices. Replacing the windows is usually not necessary. Only if these are very old and no longer stable, homeowners should also consider an exchange.

Selection of suitable burglary protection

Any measure that secures a window is basically an obstacle for a burglar. Even the consistent closing of the patio door or if a window is not in tilted position, is a protection. But a normal door or window is not an obstacle that a skilled burglar could not overcome. Such measures can only prevent spontaneous burglary.

If you want to be on the safe side, you can get advice from a specialist. Every house is different and the protection has to be individually tailored to it. In order to compare different products, the resistance classes according to DIN EN 1627 are suitable. They provide information on how burglary-resistant components (windows, doors, grid elements and the like) work.

Classifying the elements into the resistance class RC 1 N, RC 2 N and RC 2 to RC 6 d are performed after the effort required to overcome the obstacle.

RC 1 N provides only protection against physical violence or a simple lever tool. A component classified according to RC 2 N offers protection against tools such as screwdrivers, pliers or wedges for three minutes.

It is only from class RC 2 onwards that protection against serious burglary attempts through windows is given. From this class, the discs must pass a break test. They should not let themselves be beaten.

In resistance class RC 3 nobody should expect a very large burglary protection. The requirements say that using two tools requires breaking more than five minutes. In combination with an alarm system, this protection is usually sufficient for residential buildings.

From the RC 4 stand, burglars have greater problems getting into the house. A component that is in this class can be opened with a drill or a saber saw after ten minutes at the earliest. It has to withstand 15 minutes of resistance to these tools when classified in the RC 5 class, and in the RC 6 class, powerful power tools should not be successful until 20 minutes.

Because of the very costly measures that require protection in class RC 4 and higher, such retrofitting is only done in special cases.

Costs and subsidies for protection against burglary

The costs depend on the personal requirements of the customer Security and the condition of the window.

Lockable window handles cost between 12 and 20 euros. An additional window lock is an additional locking mechanism that prevents it from being levered open. These locks cost between 20 and 80 euros.

More safety is provided by a bar lock, as it additionally connects the window with the frame over the entire height. These locks are available at prices between 120 and 180 euros. A telescopic pole, which is mounted horizontally in front of the window, also shows clearly that a burglary is difficult. Such bars cost between 150 and 300 euros.

A window anti-tilt device is mounted on windows that are left unattended in a tilted position for ventilation. Such protection is possible at prices between 180 and 200 euros. Roller shutters for about 20 euros prevent sliding up the shutter. Glass break films are available for 8 to 15 euros per square meter.

On average, 80 to 300 euros per window.

Alarm systems are available from about 100 euros, these usually secure all windows.

KfW grants a subsidy of 10 percent of the eligible investment costs, provided that a certain safety standard is achieved. The applicant must have invested more than 2,000 euros in burglary protection. The amount of the grant is a maximum of 1,500 euros. Alternatively, a low-interest loan is possible.

The fact is, there is no completely suitable burglary protection for windows, but who wants a good protection at a reasonable price, needs a consultation on the spot.

Retrofit presence simulation: what does it cost?

We answer these and other questions in the price radar on the topic of presence simulation.



Video: Home Security: how to prevent burglars from breaking into your home|

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