What is asbestos and why is it still an issue today?
Asbestos is a group of natural minerals that have long been used in construction because they are inexpensive, highly durable, and nearly fireproof. It can be found in many materials: ceiling tiles, insulation, pipes, flooring, and even certain wall coatings.
For years, asbestos was used everywhere. Why? Because back then, no one knew it was dangerous. As a result, many buildings constructed before the 1990s—whether residential, commercial, or institutional—may still contain it.
Do we still use it today? No. In Canada, asbestos has been banned since 2018, both for importation and use. However, since old buildings aren’t all demolished, we are still likely to encounter it for quite some time.
👉 To learn more about construction dust and other contaminants: Construction dust: health risks
Is a simple post-construction cleaning enough for asbestos? (No.)
No, a standard cleaning, even one done thoroughly, is not enough to remove or neutralize asbestos. And it’s not just a matter of poor cleaning, it’s a public health issue.
When asbestos is in good condition and undisturbed, it does not necessarily release harmful fibers. However, the moment renovations take place—drilling a wall, removing an old floor—the fibers disperse into the air. Invisible to the naked eye, they can remain suspended for a long time.
If inhaled, these fibers can cause severe illnesses:
- Asbestosis (a chronic lung disease)
- Mesothelioma (a rare cancer)
- Lung cancer
And symptoms may appear 10, 20, or even 30 years after exposure. That’s why simply cleaning is not enough.
When should you be concerned, and who should you call?
If you are working in a building constructed before 1990, particularly during renovations or demolitions, stay alert.
If you suspect asbestos is present or are experiencing symptoms:
- Avoid handling materials yourself
- Call a certified decontamination specialist (514 331-9137)
- Consult a healthcare professional if you have concerns about your respiratory health
How is real asbestos decontamination done?
Asbestos decontamination is a whole different level. It’s not a cleaning service—it’s a highly regulated process. It requires:
- A precise diagnosis by an expert to determine where asbestos is, in which materials, and in what quantity
- Strict containment procedures (sealed zones, negative pressure, etc.)
- Specialized equipment: sealed suits, cartridge masks, ventilation systems, HEPA filters, etc.
- Certified teams specifically trained for this type of intervention
Only accredited companies can carry out such operations. It’s not just a matter of competence—it’s mandatory to protect everyone: workers, occupants, and even passersby.
And who does it concern, exactly?
- Anyone living or working in a building built before 1990
- Building or business managers
- Property owners planning renovations or expansions
In short, if you have doubts, don’t act alone. It’s always best to get testing and guidance from professionals.
