Démex inc. et Centrem

What Démex inc. et Centrem does

Démex inc. et Centrem is a privately held, family-owned Canadian specialty contractor headquartered in Chicoutimi, Quebec, operating through two integrated divisions. Démex, founded in 1992 by the Tremblay family, delivers industrial, institutional/commercial, and infrastructure demolition and deconstruction services, including complex factory dismantling, hazardous materials abatement (asbestos, lead, PCBs), structural engineering, and pre-project consulting. Centrem, established in 2006 as a wholly-owned subsidiary, runs the metal recovery, treatment, decontamination, and recycling operations across two facilities — a 28,000 m2 indoor sorting center in Alma and a Chicoutimi site with a 100-ton computerized truck scale — and processes over 65,000 tonnes of ferrous and non-ferrous metals and CRD waste annually.

The business operates a fleet of 200+ equipment units including approximately 30 excavators ranging from 2 to 120 tons, with PC 800 long-reach machines capable of 135-140 feet of vertical reach for high-rise and difficult-access projects. Notable delivered work includes dismantling 600 electrolytic cells at Rio Tinto's Kitimat aluminum smelter, demolishing Montreal's Turcot Interchange, Saint-Jacques Bridge, and Children's Hospital, and end-of-life management of PCB-contaminated transformers under MDDELCC certification. The group maintains ISO 9001:2015, RBQ, CNESST, and AMP registrations and is pre-qualified on Avetta, Cognibox, and ISN World contractor platforms.

Revenue is generated through project-based professional services contracts (demolition and consulting), transaction fees on metal sales to foundries, hardware sales of used equipment recovered from dismantled sites, and rental of 25-80 cubic yard dumpsters for CRD collection. Customers span the metallurgical, mining, forest products, infrastructure, healthcare, and government sectors, with projects ranging from thousands to tens of millions of dollars and a cumulative track record of 1,000+ projects over 25+ years. The integrated demolition-to-recycling model achieves a stated 95-98% combined reuse and recycling rate, monetizing scrap recovery to offset net demolition cost.

Name

Démex inc. et Centrem

Legal name

Démex inc.

Website

https://groupedemexcentrem.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

51–100 employees

Short description

Groupe Démex-Centrem is a family-owned Canadian specialty contractor that delivers industrial, institutional, and infrastructure demolition through its Démex division and operates two metal recycling centers through its Centrem division, serving enterprise clients across metallurgy, mining, infrastructure, and government primarily in Quebec with pan-Canadian reach.

Ownership category

akta.pro rank

Product category

Industrial Demolition and Metal Recycling Services

NAICS

Waste Collection (5621), Remediation Services (562910), Materials Recovery Facilities (56292)

SIC

Refuse Systems (4953)

akta.pro primary industry

Deconstruction & Salvage (Building Materials Reuse) (BPALAJAI)

akta.pro secondary industries

Construction & Demolition (C&D) Debris Transfer & Processing (EUAIABAB), C&D Waste Collection, Hauling & Container Services (Roll-off/Dumpsters) (EUAIAHAA)

Keywords

• Industrial demolition services
• Metal recycling services
• Hazardous materials abatement
• Deconstruction and dismantling
• Construction debris management

Headquarters

HQ city

Chicoutimi

HQ country

Canada

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Demolition and Deconstruction Services: Full-service demolition including industrial, institutional/commercial, and infrastructure projects. Services include decommissioning, hazardous materials management, dismantling, deconstruction, and structural demolition. Revenue from project fees ranging from thousands to tens of millions of dollars.
2. Metal Recovery and Recycling: Recovery, sorting, decontamination, processing, and sale of ferrous and non-ferrous metals through Centrem's two recycling centers. Metal types include steel, cast iron, aluminum, copper, brass, bronze, lead, and others.
3. Sale of Used Equipment: Sale of functional used equipment recovered from dismantled sites. Equipment identified before demolition, disconnected safely, and sold for reuse.
4. Metal Sales: Sale of processed metals including steel (rod, rip, silicone, busheling, stainless), cast iron, aluminum, copper granules, brass, bronze, white metal, manganese, lead, electric motors, vehicle batteries, radiators, and catalysts. Also organic materials like cardboard and wood chips.
5. Consulting Services: Pre-project consulting including methodology definition, scheduling, realistic budgeting, and project characterization. Estimation services based on industry parameters and 25+ years of experience.
6. Hazardous Materials Management: Asbestos, lead, PCB, aluminum, carbon, and other hazardous material management including decontamination, containment, and regulatory disposal.
7. Dumpster/Bin Rental and Transport: Rental of 20-80 cubic yard dumpsters for construction, renovation, and demolition debris (CRD) transport and collection. Collection and responsible disposal/recycling services in Saguenay-Lac-Saint-Jean region.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

Démex inc. et Centrem operates as an integrated industrial group providing demolition, deconstruction, and dismantling services for industrial, institutional, commercial, and infrastructure facilities, alongside metal recovery, recycling, and hazardous materials management through its two operating divisions. The group delivers turnkey projects ranging from thousands to tens of millions of dollars, supported by a 200+ unit equipment fleet and indoor processing facilities that handle ferrous and non-ferrous metal recovery, transformer dismantling, aluminum by-product treatment, wood shredding, and CRD waste collection.

Product overview

Démex inc. et Centrem is a unified industrial group offering demolition and recycling services through two complementary divisions. Démex, founded in 1992, provides demolition, deconstruction, dismantling, hazardous materials abatement (asbestos, lead, PCBs), consulting, and used equipment sales. Centrem, established in 2006, specializes in metal recovery, treatment, and recycling through its two facilities in Alma and Chicoutimi, handling ferrous/non-ferrous metals, transformers, aluminum by-products, wood shredding, and CRD waste management. Together they deliver integrated one-stop solutions where Démex handles deconstruction and Centrem maximizes material recovery and recycling, achieving 95-98% combined reuse and recycling rates. The group operates a fleet of 200+ equipment units including excavators up to 120 tons with long-reach booms up to 140 feet.

Differentiator

Problem solved

Functional benefit

Products and services

• Demolition and Deconstruction Services Complete, selective, partial, controlled, high-reach, underwater, enclosed space, and congested urban demolition and deconstruction services for industrial, infrastructure, institutional, and commercial buildings, delivered to industrial operators, infrastructure owners, and government entities across Canada.
• Dismantling Services Specialized dismantling of equipment and metal structures for deconstruction, demolition, and recycling purposes, including disassembly and annotated reassembly for relocation, targeted at industrial facility owners and decommissioning projects.
• Asbestos and Lead Paint Abatement Asbestos abatement and contaminated lead paint management services integrated into demolition and renovation projects for institutional, industrial, and infrastructure clients.
• Consulting Services
• Equipment Reuse Services
• Metal Recovery and Recycling Services
• Interior Stripping Services
• Structural Engineering Services
• Contaminated Site Rehabilitation Services
• Used Equipment Sales
• Metal Purchase and Sale Services
• Aluminum Smelter By-product Treatment
• Transformer and Related Equipment End-of-Life Services
• Wood Shredding Services
• Dumpster Bin Rental Services
• CRD Debris Management Services
• Metal Transport and Logistics Services

Quantifiable outcome

• 95-98% combined reuse and recycling rate on demolition projects
• +3 more outcomes

Named customers13 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• Régie du bâtiment du Québec (RBQ)coreOthersProfessional contractor registered with RBQ for building construction and demolition services in Quebec
• CNESST (Commission des normes, de l'équité, de la santé et de la sécurité du travail)coreOthersRegistered with CNESST for occupational health and safety compliance in Quebec workplace
• AMP (Autorisation du Ministère de l'Environnement)coreOthersEnvironmental permits and authorization from Quebec Ministry of Environment for hazardous materials management and recycling operations
• AvettaminorImplementation/ SI/ Consulting PartnerPre-qualification system for contractor safety management and compliance verification for major industrial clients
• CogniboxminorImplementation/ SI/ Consulting PartnerSafety pre-qualification and contractor management platform for industrial projects
• ISN WorldminorImplementation/ SI/ Consulting PartnerGlobal contractor pre-qualification and safety management system for large industrial and infrastructure projects
• 3RMCDQ (Regroupement des Récupérateurs et des Recycleurs de Matériaux de Construction et de Démolition du Québec)coreStrategic or Co-development PartnerIndustry association membership for construction and demolition material recovery and recycling companies in Quebec
• ACQ (Association de la Construction du Québec)coreStrategic or Co-development PartnerConstruction industry association membership representing contractors in Quebec
• ACGRTQ (Association des constructeurs de routes et grands travaux du Québec)coreStrategic or Co-development PartnerAssociation for road construction and large public works contractors in Quebec
• APCHA (Association des professionnels de la construction et de l'habitation du Québec)coreStrategic or Co-development PartnerProfessional construction and housing association in Quebec
• BNQ (Bureau de normalisation du Québec)minorOthersQuality certification and standards body for construction industry in Quebec

Scale indicators9 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Tomlinson Group: Ottawa-based infrastructure and environmental services firm offering demolition, environmental remediation, and waste management services across Canada. Comparable as a broader incumbent in the Quebec/Ontario corridor that overlaps with Démex-Centrem's industrial and infrastructure demolition work.
• Republic Services, Inc. Major North American waste management company with C&D landfill and recycling operations comparable in scale and scope to Centrem's CRD sorting and material recovery facilities. Provides a public-market benchmark for waste services economics.
• EnGlobe Corp. Quebec-headquartered environmental services firm providing remediation, decommissioning, and waste management services across Canada. Comparable in offering integrated decontamination, site rehabilitation, and demolition capabilities to industrial clients.
• Radius Recycling (formerly Schnitzer Steel Industries): U.S.-based metal recycling conglomerate operating scrap metal collection, processing and sales comparable to Centrem's ferrous/non-ferrous metal recovery operations. Both firms recover and grade metal streams for sale to foundries and mills.
• SA Recycling: Large U.S. ferrous and non-ferrous scrap metal recycler with processing facilities comparable to Centrem's Alma and Chicoutimi centers. Overlap in the sortation, granulation, and sale of recovered metals to industrial end markets.
• Waste Management, Inc. Largest waste services company in North America with extensive C&D collection, transfer, and recycling infrastructure. Comparable as a broader incumbent in commercial waste, roll-off container services, and materials recovery where Démex-Centrem operates.
• Clean Harbors Inc. North American environmental and industrial services leader providing hazardous waste management, remediation, and industrial decommissioning. Comparable to Démex's hazardous materials management and contaminated site rehabilitation practices.

Direct peers

• Priestly Demolition Inc. One of Canada's largest demolition contractors, with a portfolio spanning industrial, commercial, and institutional demolition comparable to Démex's core service lines. Both firms operate specialized fleets for complex structural demolition across Canada.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Demex00545143
• YouTubeyoutube.com/channel/UCpeX1t8JxRJG6LDe1tKRsSg/featured
• Facebookfacebook.com/D%C3%A9mex-129126640571982
• LinkedInfr.linkedin.com/company/demex-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries2 records

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 Démex inc. et Centrem