With Mongrain, get a high-performance building, from foundation to roof.

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Waterproof and durable foundations for a solid base

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Impervious walls offering the best energy efficiency

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A fireproofing perfectly adapted to the structure and in compliance with the most recent fire safety standards

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Effective decontamination to protect the occupants’ health

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Unmatched acoustics offering exceptional comfort

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A reinforced structure for increased longevity

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Recognized expertise since 1955

The Mongrain tribe is a team of enthusiasts whose expertise, accumulated over three generations, allows designers and developers to maximize the performance of their residential, commercial and industrial buildings.

The Mongrain added value

Why choose Mongrain as a partner?

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Durable solutions ensuring the building’s sustainability

Projects conforming to current standards

Cost optimization

Profitability of the investment

Superior quality project

Services

A diversified portfolio

Mongrain has carried out a wide range of protection projects for
residential, commercial, institutional and industrial buildings.

Testimonials

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The Quebec best business practices show highlighted the strong culture of the Mongrain company, which is well lived and conveyed within the organization.

- Krystel Bourassa, President NeurOKrono -

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Mongrain, A Solid Entrepreneur on whom we can rely as much in insulation as in optimizing the building envelope, through the strength of Mongrain expertise, we are becoming a better real estate developer.

- Martin Desrochers, President Madeco -

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We have been a client for 65 years at Mongrain, my father worked with Donat Mongrain, my brother and I worked with Raymond Mongrain and now we work with Karl Mongrain.

- Gerad Issenman, CSLBC Real Estate -