Flood Doors and Flood protection

1st Defence doors are designed, manufactured and customised to your needs. Whether its for heavy industrial or domestic use, the level of flood protection and quality is the same. Our range of doors are designed using the latest design techniques combined with steel or stainless steel allowing them to be suitable for all situations.

What are Flood Doors?

It might sound obvious, but there are a variety of different flood door defence systems that meet different requirements and prevent flooding.

Flood doors can replace ordinary doors that are already part of your business site. They can also be added to spaces between walls to provide extra protection when there is a flood risk.

Generally, flood doors are built into a structural wall within your premises to provide a unbroken flood barrier against flood water. This provides a defence against flooding, which is especially important in areas near at risk of flooding with heavy rainfall.

Flood doors can help prevent the most serious damage to your premises by preventing large, forceful flows of flood water into your business.

It is important that the doors in your business site are strong enough to withstand flood water. A fast flow of water has a huge amount of energy and can easily damage existing walls, especially if they have already been weakened by previous flooding.

We can offer you the following door types

Industrial Flood Doors

Our flood doors can be made to any size and height for your project . We design and build our own custom hinges and lock mechanisms to allow easy operation by anyone. Our technical specialists will advise you the best strategy for your project.

Our Flood Doors

1st Defence Fabrications double flood door designs are available any size and are ideal for projects needing extra width. Our double swing flood door designs use our latest in house starter and locking latches which allow for safe and fast operation .

Multi-fold Flood Doors

Our custom bi-fold doors are perfect for projects that require a smaller size and weight. They are used for projects that are restricted to a external opening area.

Automated flood doors

Our automated doors are also available for almost any project requirement and are built using the latest technology and design techniques to ensure the best solution to your project.

Flood Door or Flood barriers?

Flood barriers & gates are an alternative to projects where there may be a greater need for larger flood protection. Our flood gate solutions such as our automated sliding flood gates can be concealed between flood defence walls, allowing a better aesthetic and are used for instances where the gate will only be seen when needed, such as high tides or storm surges.

1st Defence projects include a comprehensive package that includes designs by our fully qualified structural engineer (BEng (Hons), CEng, MIStrucE) with over 30 years experience

We are with you all the way from first point of contact to final installation. We can also offer a peace of mind maintenance packages.

Fabrication work is undertaken by our fully qualified workshop operatives with Company held Weld Procedure Qualifications Records (WPQR) and Weld Procedure Specifications (WPS).

Our flood doors offer a Safety threshold design. All our doors have a flush threshold to prevent the need for a step. This forms the seal allowing easy access on larger doors and trip free access for pedestrians.

The sealing sill of our flood doors is a anti-slip plate allowing vehicular and pedestrian access with no trip hazard. The floodgates seals are created using a custom protection foam with a protective sleeve to prolong the life of the seal.

We also use our gate expertise to produce flood doors and security products for your property care.


  • Quick and easy to install flood doors

  • Ideal for use in coastal and inland environments

  • Designed to suit project specific size requirements

  • Low Maintenance


  • BS EN 10025-2 : 2004 – S275JR Steel as minimum.

  • Safety threshold design. All our gates have a flush threshold to prevent the need for a step to form the seal; this allows easy vehicular access for larger gates and trip free access for pedestrians.

  • Fully qualified structural engineer (BEng (Hons), CEng, MIStrucE) to produce design calculations with over 30 years experience.

  • Fully qualified workshop operatives with company held Weld Procedure Qualifications Records (WPQR) and Weld Procedure Specifications (WPS).