What Demix Agrégats does

Demix Agrégats is a Canadian construction aggregates producer and distributor operating as a division of Groupe CRH Canada inc., itself part of the publicly traded global building materials group CRH plc. The company runs three open-pit quarries in the Greater Montreal region — Laval (operating since 1925), St-François (since the late 1920s), and Varennes (since the 1950s) — producing limestone and sedimentary rock-based aggregates. The 2017 commissioning of the Plan Sud plant at Laval, described as the largest aggregates manufacturing project within CRH Canada in 20 years, expanded production capacity to over 4 million metric tons of stone per year.

The core technology centers on open-pit quarrying, blasting, multi-stage crushing (primary crushing reduces material to under 200 mm, followed by secondary crushing, washing, and sieving-based classification). Product output spans crushed stone in multiple grades (abrasives, multi-purpose stone, drainage stone, foundation stone), manufactured sand (0-5 mm washed screenings), and recycled aggregates certified to Quebec standard NQ 2560-600. Quality assurance is handled through ISO 9001-certified laboratories performing daily granulometric analyses since 1996, and operations hold ISO 14001 environmental certification — the first aggregates producer in Quebec to do so.

Demix Agrégats generates revenue through one-time sales of aggregates (unit-priced per ton), delivery services across the north and south crown of Greater Montreal via transport-artisan partnerships, environmental services (soil sampling, site inspection, historical research), and disposal fees for receiving excavated soil at quarries used for progressive rehabilitation. Customers order by phone (866 651-3780), email, or through a secure self-serve client portal, and span five verticals: civil engineering, commercial, industrial, residential, and institutional construction. Notable anchor projects include supplying 2 million tons for the Turcot Interchange reconstruction, 170,000 tons for Mirabel Airport runway, and 150,000+ tons for the Jean Coutu Group distribution center. The company employs approximately 150 people in its aggregates division.

Name

Demix Agrégats

Legal name

Demix Agrégats, une division de Groupe CRH Canada inc.

Website

https://demixagregats.ca

Company type

Private

Founded year

1964

Operating status

Operating

Short description

Demix Agrégats produces and distributes crushed stone, manufactured sand, and recycled aggregates from three open-pit quarries in the Greater Montreal region, serving commercial, industrial, residential, institutional, and civil engineering customers with annual capacity exceeding 4 million metric tons.

Ownership category

akta.pro rank

Product category

Construction Aggregates

NAICS

Crushed and Broken Limestone Mining and Quarrying (212312), Nonmetallic Mineral Mining and Quarrying (2123), Other Crushed and Broken Stone Mining and Quarrying (212319), Construction Sand and Gravel Mining (212321)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400), Cut Stone & Stone Products (3281)

akta.pro primary industry

Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI)

akta.pro secondary industries

Crushed Stone Quarrying & Processing (IMAKAHAA), Limestone Quarrying (Industrial & Construction Grade) (IMAKAHAC), Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH), Recycled Aggregates & C&D Materials Processing (RCA, RAP, Glass Aggregate) (IMAKAHAI)

Keywords

• Construction aggregates
• Crushed stone production
• Manufactured sand supply
• Quarry operations
• Soil disposal services

Headquarters

HQ city

Laval

HQ country

Canada

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Infrastructure, Technology or R&D

Revenue model

1. Aggregates Sales: Production and sale of crushed stone, sand, and granular products to commercial, industrial, residential, institutional, and civil engineering sectors. Revenue generated through unit pricing per ton of material sold.
2. Delivery Services: Delivery service extending across the Greater Montreal region (north and south crown), utilizing various truck types through partnerships with artisans to deliver aggregates directly to construction sites.
3. Environmental Services: Key services for soil disposal including soil sampling by qualified personnel, site inspection, and historical land use research. Costs determined by sampling parameters, number of samples required, and timelines.
4. Soil Deposits: Receiving excavated soil from construction sites in quarries for progressive restoration purposes. Revenue generated from disposal fees.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Demix Agrégats produces and distributes construction aggregates including crushed stone, manufactured sand, drainage stones, foundation stones, abrasives, and recycled aggregates from three quarries in the Greater Montreal region. The company also provides delivery services, soil deposit acceptance for quarry rehabilitation, and environmental services including soil sampling and contamination analysis.

Product overview

Demix Agrégats is an aggregate production and distribution company operating open-pit quarries in the Greater Montreal area. The company produces and delivers a portfolio of construction aggregates including crushed stones in various sizes (abrasives, multi-purpose stones, drainage stones, foundation stones), manufactured sand, and recycled aggregates. In addition to aggregate products, the company offers related services including delivery logistics spanning North and South Crown of Greater Montreal, soil deposit acceptance for progressive quarry rehabilitation, environmental services (soil sampling, contamination analysis, historical site research), and quality control testing services. The product portfolio serves commercial, industrial, residential, institutional, and civil engineering sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Abrasives (Abrasifs) Crushed stones used as anti-slip materials on roads to improve vehicle traction and safety during winter conditions. Sold to municipalities and road maintenance contractors.
• Multi-purpose Stone (Pierre multi-usage) Stones sized 2-4 inches or 4-8 inches suitable for general construction purposes, including shoreline erosion control and soil stabilization.
• Crushed Stones for Drainage (Pierres concassées pour le drainage) Crushed stones available in various dimensions designed to facilitate water flow and drainage in construction projects.
• Recycled Aggregates (Agrégats recyclés) Products made from returned concrete and recovered construction debris (concrete and asphalt), offering an ecological alternative to natural aggregates. Certified to NQ 2560-600 BNQ standard for recycled aggregates.
• Foundation Stones (Pierres de fondation) Stones used to create stable foundations for houses, roads, and other structures requiring a solid base.
• Manufactured Sand (Sable manufacturé) Sand manufactured from washed stone screening with granulometry between 0-5mm, containing minimal dust. Used as an alternative to natural sand in construction.
• Delivery Service Delivery service extending across the Greater Montreal region (north and south crown), utilizing various truck types through partnerships with transport artisans to deliver aggregates directly to construction sites.
• Environmental Services Comprehensive environmental services including soil sampling by qualified personnel, site inspection, historical land use research, GPS-based survey localization, and contaminated polygon mapping. Costs determined by sampling parameters, number of samples required, and timelines.
• Soil Deposit Service Receiving excavated soil from construction sites at quarry locations for progressive restoration purposes. Revenue generated from disposal fees.

Quantifiable outcome

• Over 4 million metric tons of stone produced annually
• +4 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Groupe CRH Canada inc.coreOthersDemix Agrégats is a division of Groupe CRH Canada inc., which is a member of CRH plc. The company operates within the CRH family of companies including Demix Construction, Dufferin Aggregates, Dufferin Concrete, Dufferin Construction, Permacon, Ontario RediMix, and Ash Grove Cement.
• CRH plccoreOthersUltimate parent company of Groupe CRH Canada and Demix Agrégats. CRH is a global building materials group.
• Various Transport ArtisansminorChannel Partner/ Reseller/ DistributorPartnerships with various transport artisans to provide delivery services across Greater Montreal's north and south crown. Multiple truck types are available to serve different customer needs.
• Association des constructeurs de routes et grands travaux du Québec (ACRGTQ)minorOthersIndustry association member providing networking and industry representation for construction and infrastructure companies in Quebec.
• Association Québécois des Entrepreneurs en Infrastructure (AQEI)minorOthersIndustry association member representing infrastructure entrepreneurs in Quebec.
• Association de la construction du Québec (ACQ)minorOthersIndustry association member for construction companies in Quebec.
• Bureau de normalisation du Québec (BNQ)minorOthersBNQ certification for materials meeting DB standards. Demix Agrégats can supply certified materials as per BNQ standards.
• Leucan MontérégieminorOthersCRH Canada and Demix divisions are official presenters of the 2018, 2019, and 2020 editions of the Défi des Tout-puissants, a fundraising event for Leucan Montérégie.
• Habitat pour l'HumanitéminorOthersDemix Agrégats contributes to Habitat for Humanity's mission to create safe and decent housing for everyone.
• Éco HérosminorOthersCRH Canada and Demix Agrégats partner with Éco Héros, an organization that educates children about nature protection.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Martin Marietta Materials: Major US aggregates and construction materials producer. Useful comparable for understanding margin structure, reserve management, and ESG positioning in aggregates-heavy operations.
• Vulcan Materials Company: Largest US aggregates producer by volume. Comparable as a pure-play aggregates operator providing benchmarks for capital intensity, pricing, and operational efficiency in the crushed stone business.
• Unibéton (Cemex): Cemex's Quebec ready-mix and aggregates subsidiary. Competitor on aggregates supply for concrete production and infrastructure projects in the Montreal region.
• Holcim Canada (formerly Lafarge Canada): Major national building materials producer with aggregates, cement, ready-mix, and asphalt operations across Quebec. Directly competes with Demix on commercial and civil engineering aggregates supply in the Montreal region.

Regional players

• Carrières Polycor: Quebec-based natural stone quarrier focused primarily on dimension stone rather than aggregates, but operates quarries in similar geology and competes for some downstream stone applications.
• Groupe Audet: Quebec construction materials group with quarry, concrete, and asphalt operations. Regional competitor with overlapping aggregates supply capabilities for civil and commercial projects.

Direct peers

• Béton Provincial: Quebec ready-mix concrete and aggregates producer with multiple plants across the province. Directly comparable aggregates operations serving the same Greater Montreal and provincial construction market.
• Ciment Québec: Quebec-based cement and aggregates producer operating quarries in the province. Closely comparable as a regional Quebec producer serving the same civil engineering and construction aggregates market.
• Sintra (Colas Canada): Quebec road construction and aggregates producer. Comparable as a vertically integrated aggregates supplier serving municipal, civil engineering, and commercial construction customers in Quebec.
• Dufferin Aggregates: CRH Canada's Ontario aggregates arm operating quarries and producing crushed stone, sand, and gravel. Direct peer as the sibling CRH aggregates business with the same product portfolio, customer segments, and parent group.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/HolcimCanada
• LinkedInlinkedin.com/company/demix-agr%C3%A9gats

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Demix Agrégats