Décontamination Grand Montréal

Asbestos Decontamination and More

Say Goodbye to Asbestos with Comprehensive Service

Asbestos is a silent danger, but we know exactly what to do. At Décontamination Grand Montréal, we take care of the entire process: detection testing, complete decontamination, and end-of-work certification. 



We can also decontaminate mould and vermiculite, protecting your health and the integrity of your property with effective and safe methods in Montreal and on the South Shore.


Entrust your decontamination project to professionals.

Contact us


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What are the risks associated with asbestos and why is decontamination essential?

Asbestos, once widely used in construction, is now recognized as a major health hazard. Inhaling asbestos fibers can cause serious illnesses, such as lung cancer.


Asbestos decontamination is therefore crucial to preserving the health of the occupants of your building.

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Is your property contaminated? DGM has the solution.

The presence of asbestos, mold, or vermiculite poses a significant health risk. Professional decontamination is essential to ensure the safety of occupants and the value of your property. DGM has the expertise and equipment necessary to carry out these complex decontamination projects.

Gros plan de minéraux d’amiante gris et fibreux intégrés dans un matériau plus foncé, semblable à de la roche.

What Are the Risks Associated with Asbestos and Why Is Decontamination Essential?

Asbestos, once widely used in construction, is now recognised as a major health hazard. Inhaling asbestos fibres can cause serious illnesses, such as lung cancer. Asbestos decontamination is therefore crucial to protect the health of your building's occupants.

Turnkey Asbestos Decontamination

Asbestos Testing before Work Begins

Before any renovation or demolition project, asbestos testing may be mandatory under Quebec regulations. We identify hazardous materials on your property so that the work can be carried out safely and in compliance with regulations.


  • Sampling of suspicious materials
  • Analysis by an accredited laboratory
  • Detailed report of risk areas
  • Recommendations tailored to your project
Vue en contre-plongée du plafond d'un couloir avec luminaire et bouche d'aération. Le plafond présente une finition texturée.
Une main gantée utilise une pince à épiler pour maintenir un petit échantillon blanc et fibreux à côté de roches grises.

Asbestos Decontamination Work

This is our core expertise! We take care of the complete removal of contaminated materials in accordance with the strictest regulatory protocols, from the containment of the area to the disposal of hazardous waste, without exception.


  • Hermetic containment of the work area
  • Removal by experienced technicians
  • Regulatory disposal of contaminated materials
  • Complete cleaning of the site

Asbestos Testing at the End of the Work

Once the work is complete, this test confirms that the levels of fibres in the air comply with current standards. Required before reoccupying the premises or continuing work, it provides you with official proof of compliance.


  • Post-decontamination air analysis
  • Official compliance report
  • Valid document for your insurer or potential buyer
  • Regulatory closure of your site file
Vue en contre-plongée du plafond d'un couloir avec luminaire et bouche d'aération. Le plafond présente une finition texturée.

Other decontamination services

How Can You Identify and Treat a Mould Problem That Requires Decontamination?

Mould can grow quickly in damp, poorly ventilated areas of your home. DMG offers mould decontamination services tailored to each situation, effectively eliminating the source of the problem and preventing its recurrence.


  • Mouldy smell
  • Black or green stains on walls and ceilings
  • Respiratory problems and allergies
Vue en contre-plongée du plafond d'un couloir avec luminaire et bouche d'aération. Le plafond présente une finition texturée.
Une main gantée utilise une pince à épiler pour maintenir un petit échantillon blanc et fibreux à côté de roches grises.

How Does Vermiculite Decontamination Work?

Vermiculite, a once-popular insulation material, may contain asbestos. DMG removes contaminated vermiculite in accordance with established protocols, ensuring the comfort and energy efficiency of your home.


  • Composition analysis of vermiculite in attic insulation
  • Safe removal of vermiculite
  • Installation of new insulation
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What decontamination services does DGM offer?

DGM offers a full range of decontamination services in Montreal and on the South Shore. We are committed to providing professional and impeccable service from the beginning to the end of the project.


  • Decontamination of asbestos, mold and vermiculite
  • Demolition of contaminated areas
  • Post-disaster renovation
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Ready for a healthy environment?