Modular and self-locking water dams

Welcome to the official website of MegaSecur (head office), manufacturer and international distributor of Water-Gate water dams — a solution for flooding, cofferdams, spill, work in submerged areas, and fire water reservoirs.

First developed in 1998, Water-Gate water dams are considered the fastest and most reliable, flexible, economical, and environmentally friendly emergency response equipment on the market. They are also reusable and highly versatile.

Using the Water-Gate water dams enable to save time and money. In addition, every manufacturing and application stages have been designed in a way that highly favors sustainable development.

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Daniel Déry water-gate water dams - megasecur flood protection system - cofferdams - fire water supply, spill control - water barriers - modular and self-locking water dam solution

An intervention system with multiple applications


years of experience


Satisfied customers


km of sold barriers


Countries worldwide

Sustainable development

At MegaSecur, protecting the environment is more than a commitment—it’s a way of life. That’s why we develop all of our products and operations using strict eco-friendly practices.

What’s more, during the manufacture of Water-Gate barriers, all residual materials are donated to a non‑profit organization so that they may be repurposed. It’s our way of helping protect the planet. Visit our Company page to learn about our concern for the environment.

FM Approved products –  Certified by FM Global, the world’s leading authority on insurance. Our FM certification attests to our commitment to provide products that meet or surpass industry standards. This certification has been obtained in partnership with the Association of State Floodplain Managers (ASFPM) and the US Army Corps of Engineers. Learn more here.


How to choose your Water-Gate Barriers ?

4 / 18 / 2019

How to choose your Water-Gate Barriers ? Discover this article and learn the 8 important steps to follow to determine the right product length needed.

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barrière eau - inondation - water-gate - megasecur

We will be closed on October 8th, 2018

10 / 4 / 2018

Please note that our factory will be closed on October 8th, 2018, as we celebrate Canada's Thanksgiving. We will come back to business on the following day...

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batardeau instantané - barrière d'eau réutilisable - écologique

Water-Gate equipment demonstration

9 / 19 / 2018

We are pleased to invite you to a great demonstration of the Water-Gate barriers. This event will be held on: September 21, 2018. One event, multiple...

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APWA 2018 – Public Works Expo (PWX)

7 / 30 / 2018

APWA Public Works Expo (PWX), an event not to be missed MegaSecur team is pleased to be part of the 2018 Public Works Expo (PWX) for the second year in a...

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Megasecur Tv

Megasecur Tv

Over the years, our teams have carried out countless interventions around the globe. Over thirty four miles of barriers have been deployed in some thirty countries, including Canada, the United States, France, Chile, Australia, Japan, Belgium, Thailand, Malaysia, Turkey, and Singapore.

Subscribe to our YouTube channel to see Water-Gate barriers in action. Check out our demonstrational videos as well as updates, case studies, real-time deployments, and news about Water-Gate products.