SOMMER Group
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AquaLOCK® One-Piece Door — Flood Protection

High‑performance flood protection for garages and adjacent spaces.

AquaLOCK® One‑Piece Door

AquaLOCK® provides integrated flood protection for garages and garage doors – the patented system retains up to 99.9% of water, tested and certified by IFT Rosenheim. It is the ideal solution for heavy rainfall, flooding, and flood‑prone garages.

Key Advantages of the AquaLOCK® One-Piece Door

  • Everyday convenience – Operates smoothly via remote control, just like a standard garage door.
  • Exceptional flood protection – Blocks 99.9% of floodwater.
  • Certified performance – Up to 1.6 m protection (with 2.5 m door height), compliant with IFT guidelines.
  • Independently tested – Approved by the European Flood Protection Association e. V. and TÜV Süd.
  • Proven leak‑tightness – Average leakage only 0.0054 l/min/m² (Protection Class 1).
  • Custom-built – Tailored with millimetre precision for a perfect fit.
  • Fast installation – Delivered in the morning, installed by evening.

Flood Protection Garage Door

The AquaLOCK® One‑Piece Door is ift‑certified and designed for real flood scenarios. Even under extreme pressure, it restricts water ingress to max. 240 litres in 24 hours — minimal compared to the thousands of litres pressing against the structure.

AquaLOCK® – maximum protection when the water rises.

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Certified Flood Protection

AquaLOCK® One‑Piece Doors deliver automatic, certified flood protection for garages and underground parking entrances.

  • Available in galvanized or stainless steel
  • Up to 500 mm protection — or up to 1,600 mm, depending on door size
  • Doors up to 3,100 × 2,500 mm close automatically at the push of a button and activate full flood protection.
  • Larger doors up to 5,200 mm width can achieve 500 mm protection with additional locking mechanisms

Design Options

Customizable design — tailored to exact measurements with millimetre‑precision, offering extensive personalization through 213 RAL colours, optional light strips, stainless‑steel accents, real‑wood cladding, and more.

Technical Data
  • Multi‑spring package for door fall protection according to DIN EN 12604
  • Alternatively for underground garages: maintenance‑free counterweight technology
  • Stainless‑steel stop rail (optional delivery without rail)
  • Fully hot‑dip galvanized frame
  • Flexible side sealing strips in accordance with EU standards
  • Finger‑pinch protection
  • Self‑locking side latch (optional)
  • Lock with security profile cylinder
  • Handles mounted from the inside for theft protection
Extras
  • Window elements and stainless‑steel applications
  • Matching side entrance door in the same design
  • Integration of a wicket door into the main door

Underground Parking Garage Door

The AquaLOCK® One‑Piece Door also delivers exceptional performance in underground parking garages, offering reliable security, robust engineering, and seamless daily operation.

  • Engineered for long service life and heavy daily use
  • Maintenance‑free counterweight technology
  • Low-noise mechanics for comfortable operation
  • Integrated safety systems
  • Effective forced-entry resistance
  • Multiple design options for architectural integration

SOMMER Garage Door Operators — Powerful. Quiet. Maintenance‑Free.

  • Travelling motor system for ultra‑smooth and quiet operation
  • Maintenance‑free design thanks to a fixed, non‑rotating chain
  • Maximum durability with no friction or power loss
  • Smart control unit with optimised speed profiles
  • Precise force adjustment for perfect motion control
  • Self‑learning technology that adapts automatically over time
  • Optional battery backup ensures reliable operation during power outages

FAQ – AquaLOCK® One‑Piece Door — Flood Protection

The AquaLOCK® One‑Piece Door is a flood‑protection up‑and‑over garage door designed to safeguard garages and underground parking entrances during real flood scenarios.

When closed, the door forms a fully sealed flood‑barrier, engineered to resist water pressure during heavy‑rain and flood events — no additional sandbags or temporary barriers are required. 

Yes. AquaLOCK® flood‑protection systems are independently tested and certified according to ift guideline FE‑07/1‑2005, ensuring verified high‑water resistance.

AquaLOCK® up‑and‑over garage doors can protect against water levels up to 1.6 m, depending on configuration.

Yes. The AquaLOCK® One‑Piece Door is explicitly suited for underground garage entrances, where high water pressure is most critical.

The AquaLOCK® One‑Piece Door can be custom‑built with millimetre precision, 213 RAL colours, stainless‑steel or wood finishes, optional light strips, and façade‑flush integration.

Yes. The one‑piece door design is suitable for both residential and commercial garages, providing durability, low maintenance, and seamless integration into façades when required.

No. AquaLOCK® systems are engineered to provide full flood protection without any additional temporary barriers. External AquaLOCK documentation states doors are fully sealed when closed, requiring no extra measures.

Yes. AquaLOCK® flood‑resistant door systems also enhance burglary resistance compared to standard doors, with some AquaLOCK product variants offering resistance levels up to RC3.

The system provides instant protection upon closing. Unlike manual flood barriers, the AquaLOCK® One‑Piece Door functions as a normal garage door while automatically providing flood resistance when shut.

Yes. SOMMER’s one‑piece doors—including flood‑protection variants—are compatible with SOMMER’s high‑quality operator systems, known for durability and quiet direct‑drive technology.

AquaLOCK® products are designed for low maintenance, thanks to durable construction and certified sealing systems. Built‑in multi‑spring packages or maintenance‑free options exist depending on configuration.

Yes. AquaLOCK® systems have been tested by independent testing bodies, including compliance with ift Rosenheim standards according to the FE‑07/1‑2005 guideline.

Yes. One‑piece doors offered by SOMMER—including AquaLOCK variants—can be installed flush with the façade for a seamless, architecturally integrated look.

Yes. The AquaLOCK product family includes Portal, Flap, Window Protector, Sectional door, and Quickwall solutions for different building openings and flood‑risk profiles.