Lamarche McGuinty, Inc.:

Quebec’s Premier Concrete Stone and Construction Supplier


Whether you are a commercial contractor, builder or do-it-yourselfer, Lamarche McGuinty, Inc. is happy to cater to your every construction need. Our wide selection of concrete stone and construction materials is sure to help you get any job done the right way, the first time. We are here to serve you and help you achieve whatever purpose you have set out for in your latest construction project.


As your one-stop shop for concrete products and various construction needs, Lamarche McGuinty, Inc. provides our customers with everything they need in one convenient location. Our huge inventory prevents lengthy waits for materials to be shipped in, because we always do our best to make sure that we have everything you need on-hand, so that you can get the job on your time table.


Our logistics knowledge and technology paired with the reliability of our partnered suppliers is what makes us the biggest and most trusted supplier of concrete products and accessories in Quebec. We work alongside leading manufacturers in the business to provide our clients with the biggest array of high-quality products at prices that fit any budget.



Our concrete stone meets the criteria of the new BNQ standards for its application in infrastructure (buildings, bridges, homes, and so on).

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 Ballast de chemin de fer

Ballast de chemin de fer

Pierre à béton

Pierre à béton

Pierres concassées classifiées

Pierres concassées classifiées

Pierres concassées tout-venant

Pierres concassées tout-venant

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 Ballast de chemin de fer

Ballast for railways

Pierre à béton

Concrete stone

Pierres concassées classifiées

Specified crushed stone

Pierres concassées tout-venant

Other crushed and/or blasted stone