Radon Mitigation

Last updated: October 2026

Radon mitigation lowers the radon level in a home. The most common method is active soil depressurization: a pipe and fan draw radon from beneath the foundation and vent it outdoors. Alberta Indoor Comfort tests Calgary homes for radon and installs mitigation systems. Call 587-792-1456.

Not tested yet? Start with a 90-day long-term radon test, placed in your home by our technician.

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587-792-1456

7131 6 St SE Unit H 

Calgary, AB T2H 2M8

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Get your home tested for Radon.

Radon testing and mitigation in Calgary

Health Canada’s radon guideline is 200 Bq/m3. It recommends a long-term test of at least 3 months, ideally in fall or winter.

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What is Radon?

Radon comes from the radioactive decay of uranium and radium and exists naturally in rocks live granite.

Like carbon monoxide, it is tasteless, colorless and odorless.

Radon breaks down into radioactive particles which are inhaled and become trapped in the lungs.

Winter homes are sealed tight to keep the heat in. Health Canada notes that can let radon build up indoors.

How does Radon enter our homes?

Radon migrates to the surface through cracks in the bedrock and into soil cover and the water table. It enters your home through gaps in the foundation, drains, sump pumps, joints and loosely fitted pipes, etc.

Why is Radon dangerous?

Radon is radioactive. Outdoors there is little danger because radon is diluted in the open air. But indoors, radon can be trapped and become concentrated in enclosed or poorly ventilated spaces.

How do I know my level?

Only a test tells you. Health Canada’s radon guideline is 200 Bq/m3. It recommends a long-term test of at least 3 months, ideally in fall or winter.

Description

The percentage of homes with high radon levels in the Calgary area is 11.9% (Cross-Canada Radon Survey). November is Radon Action Month in Canada.

This map was created using data collected from the Cross-Canada Radon Survey (2011) and the Radon Thoron Survey in Canadian Metropolitan Areas (2013). Collected information is grouped by region. Boundary files are sourced from Statistics Canada, 2018. Map produced by Radiation Protection Bureau, Health Canada, 2019. *A high radon level is defined as a radon level that is greater than the Health Canada guidelines for indoor radon, 200 Bq/m3.

What can you do?

Since you cannot taste, smell or see radon gas, radon detection technology has been developed to test and monitor radon levels in the home and workplace. Testing maybe short-term or long-term. Once the level of radon has been identified, you have to mitigate radon to control and avoid too much exposure.

Test Radon

Long term Radon Detectors

These detectors use a small piece of special plastic enclosed in a container. The detector is exposed to the air in a home for a recommended time of 90 days. At the end of the test the detector is returned to a laboratory for analysis, and the average radon concentration is calculated.

Short term Radon Detectors

When you need a fast measurement of the radon concentration – for example, to check how a mitigation system is working – a short-term measurement of two to seven days is acceptable. However, short-term measurements should never be used to determine if the radon concentration in a home exceeds the Canadian Guideline or to assess the need for remedial actions.

Mitigate Radon

The effectiveness of any one radon-reduction method will depend upon the unique characteristics of your home, the level of radon, how it is getting into your house, and how thoroughly the job is done. A single method may do the job, but sometimes a combination of several methods must be used.

• Active Sub-Slab Depressurization
• Sump-Hole Depressurization
• Drainage System Depressurization
• Homes with Crawlspaces: Active Sub-Membrane Depressurization

What a mitigation system does

A fan and pipe draw radon from under the foundation and vent it outdoors, which lowers the radon level in the house. A mitigation system should be installed by a radon mitigation professional.

Installed radon mitigation system helps reduce Radon level in your home.

Visit these sites for additional information

What is radon and where can I find it?

Radon is an invisible radioactive gas. It comes from the ground and is produced by the breakdown of the mineral uranium that occurs naturally in the soil. As uranium breaks down, it eventually releases radon. Radon is a gas, so it travels easily through the soil, working its way toward the surface.

The Canadian Lung Association’s “My Radon Story” campaign urges families to test for radon

High radon levels can be reduced in a safe and effective way. It is recommended to work with a radon mitigation professional certified by the Canadian- National Radon Proficiency Program.

Videos of Radon Mitigation System

Radon: Is it in your home?

Mike Holmes talks about radon

Radon: What is it? How to Get Rid of It

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