SOMMER Group
France

AquaLOCK® Door – Flood Protection

Advanced flood protection for basement and side entrance doors.

AquaLOCK® Door for flood protection of a basement entrance

AquaLOCK® Doors: Custom‑made and available in four models

The AquaLOCK® Door delivers robust, rapid‑deploy flood protection for building entrances—keeping water out precisely when every second counts.

AquaLOCK® Door providing flood protection in a basement opening during a load test

Key Advantages of the AquaLOCK® Door

  • 99.9% flood protection for up to 24 hours (ift‑certified)
  • Certified maximum water resistance up to 5,000 mm water height
  • Quadruple certification: TÜV SÜD, EVH, ift Rosenheim, UL Montreal
  • Zero‑leakage certification at maximum test height
  • Hurricane‑resistance certification from UL Montreal
  • Fully customizable in millimeter increments for a precise fit
Certified flood‑protection door tested up to 5 m

Certified High‑Performance Flood Protection

  • Max. 240 litres leakage in 24 h under extreme conditions.
  • Suitable for openings up to 1,200 mm × 2,300 mm.
  • Withstands 5,000 mm water height
  • 99.9% water‑tightness for 24 hours at up to 5,000 mm water height (ift‑tested).
  • Zero leakage at 5,000 mm during EVH testing.
  • Long‑term durability: Passed a 13‑day continuous ift test with no measurable leakage.
Two AquaLOCK® Doors: left fully closed with window, right open showing locking and sealing elements

Four‑Time Externally Certified for Maximum Safety

AquaLOCK® Doors undergo extensive testing by leading global institutions and meet the highest performance standards.

  • Certified by TÜV Süd, EVH, ift Rosenheim, and UL Montreal.
  • Proven water‑tightness and structural resistance under high pressure.
  • Awarded the highest UL hurricane protection classification, ensuring resilience in extreme weather events.
  • Guarantees long‑term performance, reliability, and safety in high‑risk environments.
AquaLOCK® Door with viewing window in a basement opening, interior and exterior views

Design & Aesthetic Options

AquaLOCK® Doors offer extensive customization to match architectural and design preferences:

  • 213 RAL colors
  • Stainless steel design elements
  • Wood cladding options
  • Integrated light strips

Customizable Models & Operation

The AquaLOCK® Door is available in four models (V1, V2, V3, V6), each defined by its specific flood‑protection activation method, with options for internal and external operation.
These models also support multiple locking configurations, allowing tailored solutions for different security and usability requirements.
For larger openings, fixed side or top panels can be added to create a complete sealing system.

Thermal Insulation Options

AquaLOCK® doors can be procuced in a thermally insulated version, improving energy efficiency with a U-value of 1.5 W/m²K. Both door panel and frame are build with thermally insulated profiles; the door panel is insulated with a mineral core material, optimizing thermal performance and reducing energy loss.

FAQ – AquaLOCK® Door Flood Protection

The AquaLOCK® Door is a flood-resistant door solution for residential, commercial, and industrial buildings. Thanks to its robust construction, multi-stage sealing system, and flexible installation, it provides reliable flood protection. With water pressure resistance up to 1,600 mm, 3,000 mm, or 5,000 mm, it is ideal for vulnerable building areas.

Robust Construction

The AquaLOCK® Door uses solid steel and aluminum components and reliably withstands high water pressure — ideal for basements, technical rooms, or underground garages.

  • Resistance up to 1,600 mm, 3,000 mm, or 5,000 mm
  • High durability through stable construction
  • Suitable for residential and industrial applications
Multi-Stage Sealing System

Pressure-activated seals on the door leaf and frame prevent water ingress even on uneven surfaces.

Flexible Installation

Can be installed within, in front of, or behind the reveal; optionally thermally separated with a U-value of 1.5 W/m²K.

Conclusion

The AquaLOCK® Door offers high water pressure resistance, strong sealing, and flexible installation for reliable flood protection.

The AquaLOCK® Door provides flood protection in three levels with water pressure resistance of 1,600 mm, 3,000 mm, and 5,000 mm. It is suitable for heavy rainfall, backwater, and extreme flooding, and ensures reliable building safety through high sealing performance and structural durability.

Flood Protection in Three Levels

Depending on the version, the AquaLOCK® Door achieves sealing performance for water pressure heights of 1,600 mm, 3,000 mm, or 5,000 mm. This covers typical risk scenarios such as heavy rain, surface water, and severe flooding with high hydrostatic pressure.

Applications and Benefits

The flood protection door is suitable for residential buildings, commercial properties, and critical infrastructure. It prevents water ingress, minimizes building damage, and ensures long-term safety through robust sealing and high durability.

Conclusion

The AquaLOCK® Door provides protection levels up to 1,600 mm, 3,000 mm, and 5,000 mm, reliably safeguarding buildings against heavy rainfall, backwater, and extreme flooding.

The AquaLOCK® Door is fully configurable and offers flexible options for handle systems, cylinder technology, installation methods, thermal insulation, and flood protection. It is suitable for residential, commercial, and industrial buildings and provides protection levels up to 5,000 mm water pressure. The flood protection door combines safety, sealing, and adaptability for various building situations.

Handle and Cylinder Options

The AquaLOCK® Door offers different operating options for comfort and security.

  • Interior or exterior handle
  • Knob-handle combinations
  • Single- or double-sided cylinders
Installation Methods

The door can be flexibly integrated into both new constructions and existing buildings.

  • Installation within the reveal
  • In front of the reveal
  • Behind the reveal
  • Flush interior installation
Thermal Options

For residential areas, a thermally separated version with a U-value of 1.5 W/m²K is available.

  • Insulated version for energy efficiency
  • Non-insulated version for industrial and technical rooms
Protection Levels

The flood protection door offers different protection classes.

  • Protection up to 1,600 mm
  • Protection up to 3,000 mm
  • Protection up to 5,000 mm
Conclusion

The AquaLOCK® Door is highly configurable, offering flexible features, installation methods, thermal insulation, and protection levels — ideal for residential, commercial, and industrial applications.

The AquaLOCK® Door provides flood protection levels for 1,600 mm, 3,000 mm, and 5,000 mm water pressure. It is suitable for light to extreme flooding events and ensures reliable protection for residential, commercial, and industrial buildings thanks to its robust construction, high sealing performance, and structural durability.

Protection up to 1,600 mm

Ideal for typical flood situations such as heavy rainfall, surface water, and moderate backwater. Suitable for private building areas and lightly exposed zones.

  • Optimal for standard flood scenarios
  • Recommended for basement and secondary entrances
  • Reliable protection under moderate pressure
Protection up to 3,000 mm

For more vulnerable buildings with increased risk due to location or topography.

  • For flood-prone zones with higher risk
  • High stability under strong pressure
  • Ideal for commercial and technical rooms
Protection up to 5,000 mm

Designed for extreme flooding scenarios in industrial or critical areas.

  • For extreme flood events
  • Reinforced design required
  • Optimal safety for infrastructure
Conclusion

The AquaLOCK® Door provides protection levels of 1,600 mm, 3,000 mm, and 5,000 mm water pressure, offering reliable flood protection for varying risk levels.

The flood protection of the AquaLOCK® Door is activated by locking. The pressure-activated sealing system automatically creates a reliable seal and protects against water ingress. Depending on the version, activation occurs either from the inside only or from both sides.

Internally Activated Flood Protection

Activation takes place from the inside only via handle and cylinder. When locked, the seals press against the frame and door leaf.

  • Activation from the inside only
  • High control over the protection function
  • Pressure-activated sealing
Internally and Externally Activated Flood Protection

Operable from both sides, ideal for access points in commercial and exterior areas.

  • Operable from inside and outside
  • Flexible application
Conclusion

Flood protection is activated by locking and automatically creates a mechanically tight seal against water.

Yes, the AquaLOCK® Door is ideal for existing buildings. It can be retrofitted without major structural changes and provides reliable flood protection, sealing, and high water tightness. Thanks to flexible installation methods and custom manufacturing, it can be integrated even in challenging building situations.

Flexible Installation Methods

The AquaLOCK® Door allows multiple installation positions for renovations and modernizations.

  • Installation within the reveal
  • Installation in front of the reveal
  • Installation behind the reveal
  • Flush interior installation
Suitable for Existing Openings

Custom-made solutions ensure precise fitting into irregular masonry or non-standard openings.

Minimal Structural Modifications

Usually, only minor adjustments such as reveal optimization or additional frames are required.

Optional Thermal Insulation

Thermally separated version with U-value 1.5 W/m²K for residential areas, or non-insulated for technical rooms.

Conclusion

The AquaLOCK® Door is ideal for existing buildings, combining flexible installation, precise fit, and high flood protection.

Yes, the AquaLOCK® Door is fully certified. It meets high standards for water tightness, flood protection, sealing, and structural durability. Testing by ift Rosenheim, EVH, TÜV SÜD, and UL Montreal confirms its sealing performance up to 5,000 mm water column as well as its functional and structural stability.

ift Rosenheim Testing

Tested according to FE‑07/1‑2005 for water tightness, hydrostatic pressure, and functional reliability.

  • Water tightness up to 5,000 mm
  • Sealing performance 99.9 %
  • Structural load tested
EVH Certification

Pressure tests up to 6 m water column to evaluate extreme flood protection conditions.

TÜV SÜD Testing

External confirmation of mechanical stability, sealing, and functional reliability.

UL Montreal

International testing for extreme weather and structural load conditions.

Conclusion

The AquaLOCK® Door is certified by ift, EVH, TÜV, and UL, providing verified sealing performance, structural durability, and reliable flood protection.

The AquaLOCK® Door is suitable for residential, commercial, and industrial buildings, public facilities, as well as technical and underground areas. It provides reliable flood protection, high sealing performance, and robust water tightness for all vulnerable building types.

Residential Buildings

Effective protection for main entrances, basements, and secondary access points against heavy rain and backflow.

  • Single-family and multi-family homes
  • Basement entrances and external staircases
  • Protection against surface water
Commercial and Industrial

Durable solution for operational areas such as storage, technical, and production rooms.

Public Buildings

Flood protection for schools, hospitals, and municipal facilities.

Underground Areas

Protection for underground garages, utility shafts, and technical rooms.

Critical Infrastructure

Reliable sealing for energy supply, pumping stations, and data centers.

Conclusion

The AquaLOCK® Door reliably protects residential, industrial, public, and underground areas while providing high sealing performance and wide application flexibility.