What Dufferin Aggregates does

Dufferin Aggregates is a leading Ontario-based supplier of construction aggregates, operating more than 20 quarries, sand pits and distribution yards across the province from the Niagara region to north of the Greater Toronto Area. The company's core product portfolio comprises crushed stone, sand, gravel, recycled concrete aggregate (RCA) and recycled asphalt pavement (RAP), alongside specialty offerings such as trademarked Flamboro Dark™ Armour Stone and High Performance Bedding (HPB™), the latter carrying exclusive approval from the Ontario Building Materials Evaluation Commission. The production technology centers on quarrying and processing limestone, granite, sand and gravel deposits into graded products compliant with Ontario Provincial Standard Specifications (OPSS), with proprietary blasting and washing techniques for specialty lines.

The business operates under a dual go-to-market: enterprise field sales serve major infrastructure, commercial and industrial customers via direct account management, while a dedicated DIY/Homeowner channel with self-service ordering, volume calculator and live chat (Dufferin Chatter) addresses residential and small-contractor demand. Pricing is quote-based and sold by tonnage, with revenue generated from product sales to civil engineering projects (notably Highway 407, Toronto Transit Commission subway, Trent Severn Waterway), commercial contractors, government agencies (Ontario Ministry of Transportation, Parks Canada), and individual homeowners. Distribution is handled via direct pickup at quarry locations or through third-party trucking partners, supported by a customer portal for order and invoice management and an electronic ticketing system for real-time delivery acknowledgment.

The company is a division of CRH Canada Group Inc., itself part of CRH plc's Americas Materials segment — North America's leading vertically integrated supplier of aggregates, asphalt, cement, ready-mixed concrete, paving and construction services. CRH plc employs over 90,000 people across 37 countries. Dufferin Aggregates' competitive position rests on a broad Ontario footprint, world-first Cornerstone Standards Council responsible-sourcing certifications at Acton Quarry and Paris Pit, an extensive environmental rehabilitation program (including designation of Milton Quarry as a World Biosphere area), and active biodiversity, soil-management and community-advisory initiatives that differentiate it on ESG dimensions relevant to public procurement.

Name

Dufferin Aggregates

Legal name

Dufferin Aggregates, a division of CRH Canada Group Inc.

Website

https://dufferinaggregates.com

Company type

Private

Operating status

Operating

Headcount range

101–250 employees

Short description

Dufferin Aggregates is a leading Ontario-based supplier of construction aggregates, operating more than 20 quarries, sand pits and distribution yards. It produces crushed stone, sand, gravel, recycled concrete, and specialty products for government infrastructure, commercial, industrial, and residential customers as a division of CRH Canada Group Inc.

Ownership category

akta.pro rank

Product category

Construction Aggregates

NAICS

Construction Sand and Gravel Mining (212321), Crushed and Broken Limestone Mining and Quarrying (212312), Crushed and Broken Granite Mining and Quarrying (212313), Nonmetallic Mineral Mining and Quarrying (2123)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

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

akta.pro secondary industries

Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH), Recycled Aggregates & C&D Materials Processing (RCA, RAP, Glass Aggregate) (IMAKAHAI), Aggregates Logistics, Terminals & Distribution (IMADAAAK), Concrete & Asphalt Recycling (RCA/RAP) (BPALAJAD)

Keywords

• Construction aggregates
• Crushed stone supply
• Sand and gravel
• Recycled aggregates
• Quarry operations

Headquarters

HQ city

Concord

HQ country

Canada

HQ region

North America

Offices19 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aggregate Product Sales: Sale of construction aggregates including crushed stone, sand, gravel, limestone, recycled crushed concrete, and recycled crushed asphalt to commercial, industrial, residential and civil engineering customers. Products sold by tonnage with pricing based on product type and volume.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

Dufferin Aggregates supplies construction aggregates including crushed stone, sand, gravel, recycled concrete aggregate, and recycled crushed asphalt from more than 20 quarries, sand pits, and distribution yards across Ontario. The company serves commercial, industrial, residential and civil engineering sectors, and operates a customer portal and electronic ticketing system for account management.

Product overview

Dufferin Aggregates is a leading supplier of construction aggregates for the commercial, industrial, residential, and civil engineering sectors in Ontario. The company operates more than 20 sites including quarries, sand pits, and distribution yards. Its product portfolio centers on crushed stone, sand, and gravel (including products such as 19mm Clear Stone, Concrete Stone, HL3, Granular A, Granular B Type I/II), specialty landscape products (Flamboro Dark Armour Stone, Large Armour, Gabion), agricultural products (Agricultural Lime), and recycled materials (Recycled Asphalt, Recycled Concrete Aggregates). The company also offers value-added digital services including electronic ticketing (E-Ticketing) and a customer self-service portal for order management and invoicing. Products are delivered primarily to commercial contractors, municipalities, and homeowners across the Greater Toronto Area and beyond.

Differentiator

Problem solved

Functional benefit

Brands

• Flamboro Dark (TM) Armour Stone: Trademarked armour stone product quarried at Flamboro Quarry, known for its unique grey coloring and blocky texture, used in residential and commercial landscaping, retaining walls, erosion control, slope retention, waterfalls, and feature garden pieces.
• High Performance Bedding (HPB) (TM)
• Dufferin Chatter

Products and services

• 19mm Clear Stone Clear stone sized between 5mm and 20mm with minimal dust fractions, used primarily in asphalt mixes and drainage applications around weeping tiles, footings, watermains, and under slab-on-grade concrete.
• 6.7mm Chip Single-size crushed stone product between 3mm and 8mm with minimal dust fractions, used in the production of paving stones, precast blocks, and drainage or landscape applications.
• Agricultural Lime Fine crushed dolomitic rock composed of calcium and magnesium carbonates with dust-size particles up to 2.36mm, used to increase magnesium concentration in soil for improved crop yields and as a buffering agent in acidic soils.
• Concrete Sand and Asphalt Sand Granular material graded to meet provincial specifications, ranging from 4.75mm to 0.075mm, used as a key product in concrete and asphalt mix designs.
• Concrete Stone Crushed stone available in 19mm (sizes 5mm-20mm) and 13.2mm (sizes 5mm-15mm) gradations with minimal dust fractions, used in concrete mixes and concrete applications.
• Flamboro Dark (TM) Armour Stone Quarried armour stone with blocky texture produced through specified blasting technique yielding a unique dark color, available in One-Man/Two-Man sizes up to 2 tonnes, used in residential and commercial landscaping, retaining walls, erosion control, slope retention, waterfalls, and feature garden pieces.
• Gabion Stone Quarried material with sub-angular faces in 100-200mm (4-8 inch) sizes, used for landscape walls, retaining walls, slope stabilization, pond retention, and erosion control.
• Granular A Well-graded product meeting OPSS 1010 specifications with mixtures of sand, crushed gravel, or rock, used as base leveling material prior to hot mix asphalt or ready mix concrete, and for surfaces of roadways, parking areas, and driveways.
• Granular B Type I Well-graded product meeting OPSS 1010 specifications with particles ranging from dust size to less than 150mm, used as granular sub-base material for roadways, driveways, parking lots, and temporary route access.
• Granular B Type II Well-graded product meeting OPSS 1010 specifications with 100% crushed quarried rock, particles ranging from dust size to less than 106mm, used as granular sub-base material underlying Granular A to provide structural stability for roads, parking lots, and driveways.
• High Performance Bedding (HPB) (TM) Washed product with sizes 1mm-8mm and minimal dust fractions, approved under the Building Materials Evaluation Commission for use beneath floors and around drain pipes and tile under the 1997 Ontario Building Code, used as ground levelling material, behind retaining walls, under floors, and for French drains, golf course greens, and interlock base.
• High Stability Sand (HSS) Coarse manufactured sand that is 100% crushed and washed, processed from bedrock or containing crusher screenings, sized less than 6.7mm to 75um, used as a key product in Heavy Duty Binder Coarse and top coat asphalt mix designs.
• HL3 Stone Clear stone with sizes between 5mm and 15mm with minimal dust fractions, used in asphalt mix designs and asphalt applications.
• Large Armour Stone Quarried armour stone produced through blasting with blocky texture, available in pieces ranging from 3 to 6 tonnes, used for erosion control, creek rehabilitation, retaining walls, storm retention ponds, slope stabilization, and shoreline protection.
• Recycled Asphalt Aggregate (RAP) Aggregate produced by reclaiming existing asphalt, processed through crushing and blended with virgin aggregates, sizes from dust to 22.4mm, permitted in granular base and sub-base materials per OPSS 1010, used as base leveling material for roadways, parking areas, and driveways.
• Recycled Concrete Aggregate (RCA) Recycled aggregate produced from reclaimed concrete that lessens the need for virgin aggregate while meeting performance specifications.
• Rip Rap Broken and sorted quarried rock used for erosion control and shoreline protection applications.
• Screenings Fine aggregate product used in various construction applications.

Quantifiable outcome

• Milton Quarry designated as World Biosphere area
• +3 more outcomes

Named customers6 records

Segments4 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

Seven partnerships are on record, tiered core and minor.

• Cornerstone Standards CouncilcoreStrategic or Co-development PartnerCRH Canada and Dufferin Aggregates are founding members of the Cornerstone Standards Council, a non-profit focused on engaging industry and community stakeholders in responsible aggregate certification. Acton Quarry was first quarry in world to receive CSC certification (February 2016), followed by Paris Pit (August 2017).
• Environmental DefensecoreStrategic or Co-development PartnerCRH Canada partnered with Environmental Defense as among the founding members of the Cornerstone Standards Council organization.
• Ducks Unlimited CanadaminorOthersDufferin Aggregates supports Ducks Unlimited Canada, a private nonprofit dedicated to conserving, restoring and managing wetlands and associated habitats. Company attends annual DUC Toronto Conservation Dinner.
• Links2Care FoundationminorOthersDufferin Aggregates Logistics Team hosted fundraising event on behalf of Links2Care foundation, collecting back to school supplies, gift cards and cash for local youth in Halton Community.
• Paris Soccer ClubminorOthersDufferin Aggregates hosted Paris Soccer Club (U13 boys and U16 girls) for planting event at Paris Pit. Teams planted 225 common milkweed plants to create Monarch butterfly habitat.
• Joseph Haulage Canada CorpminorOthersThird-party trucking vendor for Dufferin Aggregates. Organized appreciation lunch for Flamboro Quarry employees and Logistics Team to thank them for continued support and commitment to delivering exceptional service.
• CRH Canada Group Inc.coreOthersDufferin Aggregates is a division of CRH Canada Group Inc., part of CRH plc's Americas Materials division. CRH plc is a global building materials company operating in 37 countries with 90,000+ employees.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Heidelberg Materials (Lehigh Hanson): Global building materials group with North American aggregates operations through Lehigh Hanson. Broad incumbent comparable for vertically integrated aggregates-cement-ready-mix business model relevant to Dufferin as part of CRH.
• Vulcan Materials Company: Largest producer of construction aggregates in the United States with a diversified portfolio including crushed stone, sand, gravel, and recycled materials. Broad incumbent comparable for aggregates business economics and downstream integration.
• Martin Marietta Materials: One of the largest U.S. aggregates producers operating crushed stone, sand, and gravel quarries across North America. While primarily U.S.-focused, it is a broad comparable for aggregates business model, scale economics, and specialty product development relevant to Dufferin.

Direct peers

• St. Marys Cement (Votorantim Cimentos): Canadian cement and aggregate producer operating quarries in Ontario supplying crushed stone, sand, and gravel to construction and infrastructure customers. Directly competes with Dufferin Aggregates in the Ontario aggregates market.
• Nelson Aggregate Co. Ontario-based aggregate producer with quarries and pits supplying crushed stone, sand, and gravel for construction and infrastructure. Competes head-to-head with Dufferin Aggregates for GTA and southwestern Ontario aggregate volumes.
• Lafarge Canada (Holcim): Holcim's Canadian operating arm produces aggregates, cement, and ready-mix concrete across Canada including Ontario. Directly competes with Dufferin Aggregates for large infrastructure and commercial aggregate supply contracts in the same provincial market.
• Walker Industries: Ontario-headquartered family-owned producer of aggregates, asphalt, and emulsions with extensive pit and quarry operations across the province. Directly comparable to Dufferin's aggregate and recycled materials portfolio in the Ontario market.
• Demix Agrégats: CRH plc sister division operating aggregates quarries in Quebec. Directly comparable to Dufferin Aggregates in product mix, parent backing, and vertically integrated business model, though serving a different Canadian province.
• Tomlinson Group: Eastern Ontario-based construction materials and environmental services group producing aggregates, ready-mix concrete, and asphalt. Overlaps with Dufferin Aggregates in Ontario aggregate supply and downstream construction materials.

Regional players

• CBM Aggregates: Ontario-based aggregate producer supplying crushed stone, sand, and gravel to construction customers across the province. A regional peer competing in similar end markets though with a smaller site footprint than Dufferin.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Dufferin-Quarry-Milton-the-faces-686054901537742
• LinkedInlinkedin.com/company/dufferin-aggregates

Compliance2 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 Dufferin Aggregates