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General contractor

specializing in radon mitigation&.
in structure decontamination Inc.

Our story:
For over 20 years, we have been concerned with the quality of the air you breathe.
As a company specializing in structural decontamination, we first became interested in under-slab depressurization systems because they greatly reduced the problems of soil decontamination, such as the presence of moisture in basements.
We did a lot of research on the subject and discovered that radon was a major air quality issue.

Our expertise:
So we decided to go a step further and add radon mitigation training to our expertise.
In 2009, we obtained the American NEHA-NRPP training and in 2012, the Canadian PNCR-C/C-CNRPP certification. In fact, we are practically the only ones to hold dual certification.
We operate with an RBQ license, a full insurance policy and have been a proud recommended CAA-Quebec company for many years.

Our experience:
For nearly 15 years, more than 3000 properties have been freed from radon thanks to us. In 2022 alone, we have completed over 500 installations.
Check out our list of accomplishments and see if we’ve done any work in your neighborhood. It’s likely!

Our achievements

Our team

Our team is dynamic and professional. Our two factory trucks allow us to provide you with ultra-fast service because we know that time is important to you. Our team is creative, we will find the least invasive place to install your system.

Joël Valois, BAA
President, owner and founder

Contact us

General contractor
specialized in radon mitigation & structural decontamination

What is radon?

Radon is a sneaky and dangerous gas, it is colorless, odorless and radioactive. It is
from the decay of radium and uranium in the earth’s crust.
ground. Radon exposure is the second leading cause of lung cancer after smoking.
According to Health Canada, remedial action is required when this level exceeds
200 Bq/m³
. Only a test will confirm the level of radon in your home.

Our testers

Protect yourself from radon

radon in your home?

Radon infiltrates your home through all openings in contact with the groundCracks in foundation walls, floor slabs, construction joints, openings around services and support columns, floor drains and sumps, wall cavities and water supply.

Source: Health Canada.

Read more

Effects on your health

In Quebec, 10 to 16% of lung cancer deaths are associated with radon.

Among these deaths:

60% occur in smokers


30% among former smokers


10% among non-smokers

Read more

About radon

Radon can seep into buildings, especially through the foundation.


We are in good standing with the laws and standards RBQ and CCQ.

Our achievements

The Health Canada guideline for radon is 200 Bq/m3.


Established in the suburbs of Montreal, we serve all regions of Quebec.

Order your radon test