British Standard BS 851188


From ISO 9001 quality management, to achieving the latest BSI certification for our flood resilience products BS 851188 or delivering our service according to the Industry Code of Practice, our commitment to the highest standards is relentless.


The British Standards Institution is the National Standards Body of the United Kingdom and Globally recognised and respected. The BSI produces technical standards on a wide variety of products and services and also supplies certification and standards related services to Businesses.

The BSI testing process involves installing an appropriate flood resilience product in an approved BSI testing facility to simulate static water, dynamic impact, waves and currents, and the leakage rate. The testing is intensive and precise, to ensure only the best products achieve Certification.

M3 Floodtec ensure all flood resilience solutions are independently tested by the British Standards Institute, with all relevant products meeting PAS1188, and testing now successfully completed to the new exacting requirements of the new British Standard BS851188. The first company in the world to achieve the new British standard!


CIRIA (Construction Industry Research and Information Association) is a neutral, independent, and not for profit body. CIRIA’S vision is to be a leading enabler and preferred partner for performance improvement, driving collaboration across built environment and construction sectors for the identification, development, and transfer of knowledge.

The Code of Practice has been developed by CIRIA and the BRE (Building Research Establishment) with input from the DEFRA PFR round table, CIWEM, ICE and RICS to create a benchmark for procuring and delivering Property Flood Resilience (PFR).

Supported by: The Environment Agency, Scottish Government, Welsh Government, Department for Infrastructure, Northern Ireland and Aviva.

The Code of Practice features six standards specifying what should be achieved when delivering Property Flood Resilience PFR, with the supporting guidance explaining how a process based on six stages delivers PFR that complies with good practice

M3 Floodtec supports the Code of Practice, and we shape our service delivery around the guidance.

We also support the work of CIWEM (Chartered Institution of Water and Environmental Management) to design, develop and deliver accredited Property Flood Resilience (PFR) training with a comprehensive audit trail on behalf of the Environment agency.


As a leader in our field, we are constantly pushing the boundaries of innovation to address the needs of an ever-changing environment. Fundamental to this programme of development is our ability to access state of the art testing facilities for both domestic and commercial flood resilience products.

British Standard BS 851188


We have developed an extensive range of Flood Resilience Products that are KitemarkTM Certified to BS 851188.

Anti Flood Airbrick

The Anti-flood Airbrick is the world’s first BSI Kitemark certified airbrick to protect against flooding.

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Anti Flood Airbrick
Available in 5 standard colours
Flood Defender Barrier

The system is easily deployed and lightweight, but robust. Specially designed extrusions provide optimal sealing for reliable flood resilience.

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Flood Defender Barrier
Virtually Invisible Fixings
Flood Defender Composite Doors

The advantage of the Composite Door range is its flexibility.

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Flood Defender Composite Doors
A Rated Energy Efficient
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BSI Flood Protection Kitemark KM713574
ISO 9001 Quality Management
Chas Elite
Hereford & Worcestershire Chamber of Commerce
Leaders Council
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