SOMMER Group
France

AquaLOCK® Windows Protector – Flood Protection

Easily and effectively protect basement windows from flooding.

AquaLOCK® Window Protector installed on a basement window with frame and red locking clamps

AquaLOCK® Windows Protector

The AquaLOCK® Windows Protector offers a customized, easy‑to‑install solution for reliable flood protection of basement and building windows. Its innovative acrylic barrier with tilting function makes it the perfect retrofit option for safeguarding vulnerable openings.

AquaLOCK® Window Protector holding back rising floodwater on a basement window

Key Advantages of the AquaLOCK® Windows Protector

  • Flood + Burglary Protection: Durable acrylic barrier for basement and façade windows.
  • Easy Retrofit: Tilting acrylic design allows simple installation on existing windows.
  • High Water & Pressure Resistance: Built for extreme weather and long-term exposure.
  • Simple Installation: Adhesive-mounted, no major modifications required.
  • Improved Insulation: Air gap boosts thermal performance.
  • Optional Add‑Ons: Insect screen and other configurable features.
  • Flexible Sizing & Applications: Fits various window sizes and can be mounted on walls or frames.
AquaLOCK® Window Protector mounted on a basement window with stone light well outside

High‑Performance Flood Protection with Simple Installation

The AquaLOCK® Windows Protector provides strong flood resistance for basement windows with its 15 mm solid acrylic barrier, engineered to withstand the pressure of a 2‑meter water column for up to 24 hours.

The system is easily retrofitted by adhering the barrier to the window frame with a silicone‑based sealant, requiring no major structural changes. The window remains fully functional, and the barrier can be mounted on the frame or directly on the wall to fit different building conditions.

FAQ – AquaLOCK® Windows Protector Flood Protection

The AquaLOCK® Windows Protector is a robust flood protection solution made of 15 mm acrylic, providing reliable sealing for vulnerable windows. Mounted externally, the AquaLOCK® Windows Protector safeguards basement and low-level windows from heavy rain, water ingress, and increased water pressure.

External flood protection for vulnerable windows

The protector is attached to the exterior of the window frame or facade. This creates a stable barrier that effectively keeps water away from the window and enhances the system’s sealing performance.

Sturdy 15 mm acrylic construction

The 15 mm-thick acrylic panel withstands high water pressure, ensuring reliable protection for the window even during heavy rainfall.

Ideal for basement and low-level facade windows

Windows prone to water accumulation, such as basement or ground-floor openings, benefit especially from the system’s strong flood protection.

Summary

The AquaLOCK® Windows Protector is an externally mounted acrylic barrier that reliably seals vulnerable windows and provides effective protection against water ingress.

The AquaLOCK® Windows Protector provides a very high level of flood protection, reliably safeguarding vulnerable windows against strong water pressure. The AquaLOCK® Windows Protector combines a robust 15 mm acrylic barrier with a stable sealing system, ensuring maximum watertightness and durability even under extreme conditions.

Resistance to high water pressure

The construction is designed to withstand up to 2 meters of water pressure for 24 hours, making the system suitable for severe flooding and high water loads.

15 mm-thick acrylic barrier

The 15 mm acrylic panel provides exceptional stability and effectively prevents water under pressure from penetrating the window area.

Robust mounting and sealing technology

Strong adhesion and pressure-resistant construction ensure a long-lasting, watertight seal that holds up even under prolonged stress.

Summary

The AquaLOCK® Windows Protector delivers flood protection for up to 2 meters of water for 24 hours—thanks to its sturdy 15 mm acrylic panel and pressure-resistant sealing system.

The AquaLOCK® Windows Protector is quick and easy to install. Mounted externally on the window, it provides high sealing performance and effective flood protection without any structural modifications. The clear installation guidance ensures reliable sealing and stable durability.

External adhesion to the window frame

The 15 mm acrylic barrier is bonded directly to the existing window frame or façade. This creates a continuous protective surface that effectively seals the entire window.

Use of specialized sealing adhesive

A high-performance sealing adhesive ensures a long-lasting, watertight connection. It provides pressure-resistant, durable sealing between the window frame and the protective panel.

Flexible installation positions without construction work
  • Mounting directly on the window frame
  • Alternative installation on the exterior wall
  • No window removal or structural modifications required
Summary

The AquaLOCK® Windows Protector is externally bonded, provides long-lasting sealing, and can be installed on the frame or wall without any construction work.

Yes, the AquaLOCK® Windows Protector allows everyday ventilation. It offers functional options that let fresh air in while maintaining high sealing performance and effective flood protection. These solutions are designed for daily use and support comfortable operation.

Tiltable ventilation flap

The tiltable version allows controlled ventilation without removing the external protection. This keeps the window usable while maintaining protection against water ingress.

Removable protective panel

The protective panel can be easily removed and reinstalled. This allows the window to be used flexibly for ventilation or cleaning without compromising flood protection.

User-friendly flood protection

Both options combine practical everyday use with reliable sealing and high system durability.

Summary

The AquaLOCK® Windows Protector enables user-friendly ventilation with tiltable or removable elements while ensuring secure flood protection.

The AquaLOCK® Windows Protector can reliably protect different types of windows. It provides high sealing performance, robust durability, and effective flood protection for any area where water tends to accumulate quickly at the window – especially basement, facade, and lightwell windows.

Basement windows

Basement windows are highly vulnerable to flooding because they are at or below ground level. The Protector effectively prevents water ingress in these locations.

Floor-level or low façade windows

Windows close to the ground are often exposed to flooding. The acrylic barrier protects these windows effectively from surface water intrusion.

Lightwell windows and small exterior openings

Lightwell windows, small façade openings, and other particularly vulnerable areas benefit from this robust external protective solution.

Summary

The AquaLOCK® Windows Protector effectively safeguards basement windows, low-level façade windows, lightwell windows, and other small exterior openings against water ingress.

Yes, the AquaLOCK® Windows Protector significantly enhances security. It uses a robust acrylic barrier that makes forced entry more difficult, improves the basic security of the window, and simultaneously provides reliable flood protection with high sealing performance.

Durable acrylic panel

The sturdy 15 mm acrylic panel is much harder to break or force open than conventional glazing. It increases the window’s resistance and makes mechanical tampering more difficult.

Additional external protective barrier

The Windows Protector blocks direct access to the window. This greatly hinders prying or tampering attempts, further increasing the protection factor.

Deterrent effect

The visible acrylic barrier immediately signals potential intruders that additional effort is required. This acts as a deterrent and reduces the risk of burglary.

Summary

The AquaLOCK® Windows Protector noticeably improves burglary protection, as the sturdy acrylic barrier significantly hinders forced entry.

Yes, the AquaLOCK® Windows Protector can be equipped with optional enhancements. The AquaLOCK® Windows Protector offers flexible add-ons for increased convenience, better adaptation to different window situations, and additional protection. The modules can be combined individually, expanding the system’s functionality.

Integrated insect protection

A fine-mesh insect screen can be added to reliably protect light-well or façade windows from insects. The ventilation function remains intact while flood protection continues to perform fully.

Various flap sizes

Multiple flap variants allow precise adjustment to different window openings, ensuring optimal protection tailored to structural requirements.

Flexible expansion and customization options
  • Individual modules for added convenience
  • Adaptations according to the building situation
  • Additional functions for everyday use and safety
Summary

The AquaLOCK® Windows Protector is flexibly expandable and, with optional modules, provides optimal customization for enhanced comfort and safety.

Yes, the AquaLOCK® Windows Protector noticeably improves insulation. By adding an extra acrylic layer, the AquaLOCK® Windows Protector creates an insulating air gap that reduces heat loss, increases energy efficiency, and minimizes common cold bridges at vulnerable basement and façade windows.

Insulating air gap

The installation creates an additional air space that acts as a natural insulation layer. It reduces heat transfer and improves the thermal stability of the window.

Enhanced energy efficiency

The reinforced thermal protection can lower a building’s energy demand and make indoor conditions noticeably more comfortable – especially in cooler areas such as basements.

Reduced cold spots at the window

The acrylic barrier minimizes typical cold bridges that occur particularly at basement windows. This reduces condensation and increases comfort.

Summary

The AquaLOCK® Windows Protector effectively enhances thermal insulation by creating an insulating air gap and reducing heat loss at the window.

The AquaLOCK® Windows Protector is essential for reliably protecting windows against water intrusion. Thanks to flexible installation, high sealing performance, and robust construction, the AquaLOCK® Windows Protector provides effective flood protection – regardless of frame or reveal conditions.

Installation on the existing window frame

The barrier can be mounted directly on the existing window frame. This allows for quick, clean installation without any structural modifications.

Direct installation on the building exterior

For special building geometries or challenging frame conditions, the Windows Protector can alternatively be mounted directly on the exterior wall, providing maximum stability.

Flexible adaptation to different reveal situations

The design accommodates various reveal depths and structural features without difficulty, ensuring reliable flood protection in every installation scenario.

Summary

The AquaLOCK® Windows Protector adapts flexibly to different frame and reveal conditions, consistently providing optimal flood protection.