Plaster and plaster joint

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Plaster, a hidden source of asbestos.

Before the 1990s, many buildings in Quebec used asbestos in both insulation and plaster. Indeed, asbestos was particularly appreciated because it allowed to improve the characteristics of materials. Excellent insulation, few cracks, better resistance and application, many benefits have been provided by asbestos.

Nevertheless, since 1985, asbestos has become banned in building materials. However, many houses and buildings hold plaster or plaster joints containing asbestos, without being aware of it. Before starting any work, call on GDDQ asbestos decontamination experts to make sure there is no asbestos in your plaster!

Effective decontamination of plaster walls and joints

Construction materials 0%
Gypsum gaskets 0%
Fibers corked in plaster walls 0%


How to know if your plaster contains asbestos?

At the time, asbestos was incorporated in plaster mixes for Quebec construction. Plaster containing asbestos was used in the manufacture of walls, partitions and ceilings. Since the 1990s, gypsum board has replaced asbestos-based plaster.

However, many buildings still have walls, partitions and ceilings plastered with asbestos, without knowing it. As long as there is no change in your home, the presence of asbestos in the plaster is not dangerous. But as soon as you plan renovations, demolitions or the installation of new electrical outlets, you may have to touch your plaster and its joints.

If your plaster contains asbestos and you open it, move it or destroy it, you could have a big impact on your health. Indeed, by touching plaster containing asbestos, asbestos fibers start to circulate in the air and their inhalations are particularly toxic.

  • Lung cancer
  • Asbestosis
  • Pulmonary diseases
  • Nasal congestions
  • Breathing disorders
  • Irritations to the throat and eyes

That’s why if you have doubts about the presence of asbestos in your plaster and plaster joints, you must absolutely call on a company specializing in asbestos decontamination such as GDDQ.

How to remove asbestos from plaster?

To take no risks, you must call experienced plaster asbestos removal professionals prior to the completion of your work. Otherwise, you are endangering the occupants of your home if asbestos proves to be present in your cast.

To detect the presence of asbestos in the plaster, GDDQ carries out asbestos sampling and air tests before and after your work. These analyzes are then sent to a specialized laboratory. It is a simple, complete and reliable way to know the composition of plaster.

If your plaster contains asbestos, GDDQ removes asbestos from the plaster. For this, we put your worksite in a negative pressure confinement zone, to prevent asbestos from spreading through the air in your home, while removing all asbestos.

Thanks to this, your work can be done in good conditions, while offering you a healthy environment!

Contact GDDQ today

Do you have walls, partitions or ceilings that contain pre-1990 plaster and are you planning work soon?
Have your plaster and gaskets checked beforehand to make sure there is no asbestos! To do this, call on GDDQ’s asbestos removal experts by calling

We hold our RBQ license and we are available 7 days a week and 24 hours a day to meet your needs!