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Demountable Flood Barrier
Custom Sized For Your Site
Demountable Flood Barrier
Demountable Flood Barrier
Protect vulnerable openings with a demountable flood barrier system designed to provide reliable flood protection when it is needed, while keeping the opening clear during normal day-to-day use.
Flow Defence supplies custom-sized demountable flood barriers across Australia for residential, commercial, industrial and infrastructure applications. These removable barrier systems are designed for practical deployment, strong sealing performance and long-term durability in demanding environments.
For sites that require passive flood protection without manual deployment, view our Self-Activating Flood Barrier systems.
A Practical Flood Protection Solution for Vulnerable Openings
A demountable flood barrier is a removable flood protection system installed across an opening before a flood event. Once the flood risk has passed, the barrier can be removed and stored, leaving the area open and unobstructed.
This makes demountable systems ideal for locations where permanent barriers are not practical, or where access, appearance and traffic movement still matter.
- doorways
- driveways
- loading dock openings
- basement entries
- car park access points
- plant rooms
- lift wells
- ventilation openings
- commercial and industrial access ways
Demountable systems are used across both Residential Flood Protection and Commercial Flood Protection applications where removable protection is preferred.
Why Choose a Demountable Flood Barrier?
A demountable flood barrier gives you dependable flood protection without leaving a fixed obstruction in place full time. It is a practical option for properties that need targeted protection for specific openings while maintaining normal access when flood risk is low.
- Clear access when not in use – the opening remains fully usable under normal conditions
- Manual deployment when flooding is expected – the system can be installed ahead of forecast storms or flood events
- Custom sizing – each barrier system is designed to suit the opening width, height and site conditions
- Reusable system – components are designed for repeated deployment across multiple flood events
- Suitable for retrofit and new construction – ideal for both existing sites and new developments
- Durable materials – built for long-term performance in demanding Australian environments
Designed for Australian Conditions
Flow Defence demountable flood barrier systems are designed to deliver practical, robust flood protection for a wide range of applications. Each system is built for performance, durability and ease of use, while maintaining a clean finish when not deployed.
- minimum 25 year design life
- 200 mm high individual panels
- 6005A-T5 marine grade aluminium components
- EPDM sealing material
- 316 stainless steel fasteners
- vandal-resistant covers
- deployment by one or two operators
- no trip hazard when not deployed
- suitable for retrofit and new builds
To learn more about our company and approach to flood protection, visit About Flow Defence.
Applications for Demountable Flood Barriers
Residential properties
Demountable flood barriers can help protect homes, garages, driveways and lower-level openings in areas exposed to flash flooding, stormwater surcharge, overland flow and storm surge.
Learn more about our Residential Flood Protection solutions for homes and strata properties.
Commercial buildings
Commercial sites often need flood protection without compromising day-to-day access. Demountable barriers are well suited to building entries, shopfronts, basement access points, loading areas and shared vehicle entry locations.
See our Commercial Flood Protection page for related solutions used across commercial and industrial projects.
Industrial and infrastructure assets
Industrial facilities and critical assets often require flood protection around plant rooms, service entries, warehouses, substations and other vulnerable openings. A demountable system provides targeted protection while allowing normal operations when flood risk is low.
You can also explore Commercial Flood Protection Projects for examples of barrier systems used across larger buildings, access points and operational sites.
Why Work With Flow Defence?
Flow Defence is an Australian business focused on practical flood protection solutions for residential, commercial, industrial and infrastructure applications. We work with clients to assess each site, understand the opening geometry, and recommend a barrier system suited to the operational and flood risk requirements of the project.
- Site assessment – review the opening, flood risk and installation requirements
- System design – develop a barrier layout suited to the location
- Supply and installation support – help ensure the system is fitted correctly
- Training and ongoing guidance – support safe operation and maintenance
You can also view our Commercial Flood Protection Projects and Residential Flood Protection Projects pages to see how Flow Defence systems are applied across different sites.
Request a Demountable Flood Barrier Assessment
If you need flood protection for a doorway, driveway, plant room, basement entry or other vulnerable opening, Flow Defence can help you assess the right demountable flood barrier solution for your site.
Contact Flow Defence to discuss your site and request a demountable flood barrier assessment.