Blog #048 • Perimeter Defense

Complete Guide to Window Cage Systems

When standard bars aren't enough, you need full enclosure. A window cage is the ultimate physical deterrent, offering 5-sided protection for high-risk assets.

What is a Window Cage?

Unlike a flat grille that covers the glass pane, a window cage projects outward, creating a 3D box of steel mesh or bars around the entire window opening. This design provides several unique advantages:

Key Applications

You won't typically see a full window cage on a suburban front living room (due to aesthetics), but they are indispensable in specific scenarios:

• Commercial Alleys: Rear windows of businesses facing dark alleys are prime targets. A cage prevents smash-and-grab attempts.
• Basement Storage: Ground-level windows where expensive tools or inventory are stored.
• Schools & Public Housing: High-traffic areas where vandalism is a constant threat.

The AC Unit Cage

The most common residential use of a window cage is to protect Window Air Conditioning units. AC units are notoriously easy to push in (to enter the house) or pull out (to steal the unit).

An AC cage anchors into the exterior masonry and wraps completely around the unit, locking it in place. It protects your $400 appliance and seals a massive hole in your home's security.

Material Guide

For a cage to be effective, it must resist cutting and leverage. Security WB recommends:

Conclusion

When you need to turn a vulnerability into a fortress, the window cage is the answer. It sends a clear message: "Move along, nothing easy here."

Ensure your cage is installed with tamper-proof hardware into structural studs or masonry.