Commercial, Industrial and Institutional Mould Decontamination in Montreal

Mould decontamination using IICRC S520 compliant procedures, performed by an ISO certified specialist to ensure safety and effectiveness.

For over 38 years, SDC Travaux Spécialisés has been the go-to contractor for mould decontamination in the commercial, industrial and institutional sectors throughout Greater Montreal. Our mould removal service, compliant with the IICRC S520 standard, is backed by a triple ISO 9001, ISO 14001 and ISO 45001 certification — an unmatched guarantee of quality, safety and environmental responsibility in Quebec.

Our team of qualified technicians applies rigorous protocols for the complete elimination of spores and the restoration of optimal indoor air quality. Whether you are a building manager, facilities director or health and safety officer — trust us with the mould remediation of your premises in Montreal, Laval, Longueuil and on the South and North Shores.

Specialized equipment

Multiple certifications

Reduced maintenance costs

Complete property protection

Specialized equipment

Multiple certifications

Reduced maintenance costs

Complete property protection

What Is Mould Contamination in a Commercial Setting?

Mould contamination is the uncontrolled growth of mould on surfaces and in the air of a building. In commercial and industrial settings, the surfaces to be treated are larger, centralized HVAC systems spread spores throughout the entire building, and the employer has a legal obligation to maintain a healthy work environment under the CNESST.

Common Causes of Mould in Commercial Buildings

Mould develops as soon as a moisture source, a favourable temperature and organic matter come together. In commercial environments, common causes of mould contamination include:

Building basements, industrial attics and mechanical rooms are particularly vulnerable areas for mould growth. Regular ventilation duct cleaning helps limit the spread of spores through HVAC systems.

Signs of Mould Contamination

Several indicators may signal a mould problem in a commercial building:

Mould can also grow invisibly behind drywall, inside ventilation ducts or under floor coverings. A professional assessment with indoor air quality testing is often necessary to determine the extent of the contamination.

Do you suspect mould contamination in your building?

Our certified specialists assess the situation and provide a complete diagnosis compliant with the IICRC S520 standard.

Our Mould Decontamination Services (IICRC S520 Standard)

SDC offers a full range of mould decontamination services for commercial, industrial and institutional buildings, in compliance with the IICRC S520 standard and the guidelines of the INSPQ, BNQ and Health Canada.

Mould Contamination Inspection and Assessment

Thorough diagnosis compliant with the IICRC S520 standard: visual inspection, moisture readings (moisture meter, hygrometer), thermal imaging (thermographic camera), air and surface sampling sent to an independent MELCCFP-accredited laboratory (ISO 17025). Identification of mould species, contamination level assessment and detailed report with personalized recommendations.

Our mould decontamination service ensures the complete elimination of mould and the prevention of its recurrence. The intervention includes:

  • Installation of airtight containment zones (6 mil polyethylene) and negative air pressure using negative air machines (NAM)
  • Setup of decontamination chambers between the contaminated zone and occupied areas
  • Continuous air filtration using HEPA air scrubbers
  • Application of certified antifungal biocides by electrostatic spraying
  • Indoor air remediation to eliminate spores and prevent their recurrence

Safe removal of contaminated porous materials (drywall, insulation, carpets, gypsum board). Treatment of semi-porous materials (plywood, wood) by brushing or sanding under controlled conditions. In certain cases, dry ice cleaning allows a non-abrasive treatment of delicate surfaces. Management and disposal of contaminated waste in compliance with provincial and federal regulations.

Following water damage or a disaster, rapid intervention prevents mould growth. Drying of affected areas using industrial dehumidifiers and air movers, followed by a complete disinfection compliant with the IICRC S520 standard. This service is often combined with our disaster cleanup expertise for comprehensive damage management.

Mould produces volatile organic compounds (VOCs) responsible for musty odours. We use ozone and hydroxyl generators to destroy these molecules at the source. HEPA vacuuming and specialized dusting for the elimination of spore-laden dust. For environments requiring complete remediation, our disinfection service completes the intervention.

Our Step-by-Step Mould Decontamination Process

Every project carried out by SDC follows a structured process designed to guarantee measurable results and full regulatory compliance.

Service Areas — Mould Decontamination in Greater Montreal

Our mould decontamination service covers Montreal and all its boroughs, Laval, Longueuil, Brossard, Saint-Hubert, Boucherville, Terrebonne, Repentigny and Blainville. South Shore, North Shore or downtown — our team travels quickly for a free estimate.

Mould Decontamination Areas of Expertise

Office Buildings and Commercial Spaces

Centralized HVAC systems spread mould spores throughout the entire building if contamination is not addressed. We intervene discreetly to minimize disruptions to operations and downtime. High-level dusting can be performed as a complement for spaces with high ceilings.

Industrial Buildings and Warehouses

Large surface areas, condensation on metal structures, high humidity and hard-to-reach areas: our industrial-grade equipment and ability to manage large-scale projects set us apart from residential companies. For industrial environments, high-pressure cleaning can complement mould decontamination on exterior surfaces and structures.

Institutions — Hospitals, Schools and Government Buildings

Mould decontamination in institutional settings requires enhanced protocols due to vulnerable populations (patients, children, elderly). SDC has the institutional credibility and certifications necessary to meet the requirements of the public and parapublic sectors.

Why Choose SDC for Your Mould Decontamination?

Over 38 Years of Expertise in Specialized Works

Founded in 1983, SDC is a pioneer in specialized decontamination work in Quebec. Decades of experience and thousands of projects completed in the most demanding commercial, industrial and institutional environments. See our completed projects to discover our work.

Triple ISO Certification — Quality, Environment and Safety

The only mould decontamination company in Greater Montreal to simultaneously hold ISO 9001 (quality), ISO 14001 (environment) and ISO 45001 (occupational health and safety) certifications. This triple certification attests to the excellence of our processes and our commitment to environmentally responsible practices.

Rigorous Compliance with the IICRC S520 Standard

The IICRC S520 standard is the international benchmark for mould remediation. Our protocols guarantee measurable results, decontamination verifiable by air testing and full regulatory compliance.

Qualified Team and Specialized Equipment

ASP Construction trained personnel. State-of-the-art equipment: negative air machines, HEPA air scrubbers, moisture meters, hygrometers, thermographic cameras, electrostatic sprayers.

Need mould decontamination for your premises?

Our ISO and IICRC S520 certified team works in commercial, industrial and institutional buildings throughout Greater Montreal. 

Our
guarantees

Detailed report with photographic evidence. Post-work air testing by an independent accredited laboratory. Decontamination certificate. Corrections at our expense if necessary. Your satisfaction and the health of your occupants are our priority.

Request a Free Estimate

Need a mould decontamination service for your commercial, industrial or institutional building? Contact SDC Travaux Spécialisés for a free assessment.

What is the IICRC S520 standard?

The IICRC S520 standard is the international benchmark for mould contamination remediation. It defines the protocols for assessment, containment, treatment and post-work verification, contamination levels (small, medium, large area), required protection measures and measurable success criteria through laboratory air analysis.

What are the health risks for occupants and employees?

Inhaling airborne spores in contaminated air can cause respiratory problems, allergic reactions, asthma, mucous membrane irritation, headaches and chronic fatigue. Immunocompromised individuals, children and the elderly are particularly vulnerable. Considering that workers spend approximately 90% of their time indoors, indoor air quality has a direct impact on occupant health and productivity.

What are the signs of mould in a commercial building?

Black, green or white stains, musty odour, excessive condensation, water marks and recurring symptoms among occupants (allergies, respiratory problems, irritations). Mould can be hidden behind walls or inside ventilation ducts — a professional inspection is essential.

How much does commercial mould decontamination cost?

The cost varies depending on the extent of the contaminated area, the type of materials affected, accessibility and project complexity. Contact us for a free estimate tailored to your situation.

Est-il obligatoire de faire appel à un professionnel certifié?

Health Canada, the INSPQ and the CMHC strongly recommend a qualified specialist as soon as the contaminated area exceeds 1 m². For areas greater than 10 m², a specialized team with negative air pressure containment is required. In the workplace, the CNESST requires the employer to protect worker health.

What certifications should a mould decontamination contractor have?

A competent contractor should follow the IICRC S520 standard, hold an RBQ licence and have ASP Construction trained personnel. SDC stands out with a triple ISO certification (9001, 14001, 45001), offering a superior level of quality and safety.

Does your building also contain asbestos?

The presence of mould and asbestos in the same building is common, especially in buildings constructed before 1990. SDC also offers a complete asbestos decontamination service compliant with current standards, allowing integrated management of both contaminants.

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