Best Radon Testing & Mitigation in Stittsville

About Radon in Stittsville, Ontario

Last updated: March 2026

Stittsville is served by C-NRPP certified radon professionals listed on RadonFinder.ca. Ontario has widely varying radon risk depending on geography. The Ottawa Valley, eastern Ontario, and areas underlain by the Canadian Shield, including parts of Sudbury, Elliot Lake, and the Bancroft region, have elevated radon due to uranium-rich granite bedrock. Southern Ontario's clay and limestone geology generally produces lower levels, though local hotspots exist in any region. Health Canada estimates roughly 7% of Ontario homes exceed the guideline.

Typical Mitigation Cost in Ontario

$2,200–$3,800

Near national average

Costs vary significantly between the GTA, Ottawa, and northern Ontario due to labour markets and home construction types.

  • •Foundation type: poured concrete, block, or slab
  • •Basement finish level: unfinished installs are faster and cheaper
  • •Pipe routing complexity in finished or split-level homes
  • •GTA vs. rural Ontario labour rate differences
  • •Age of home: older homes may require additional sealing work

Showing 1–8 of 8 professionals in Stittsville

Travis Valcourt

Stittsville, ON
Testing
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Radon Works

Nepean, ON
5.0(21)Google

Strictly a remediation contractor for radon gas, offering free consultations on radon & HVAC IAQ issues. Promotes testing & awareness. Nepean, ON.

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Simon Air Quality

Russell, ON
4.9(49)Google

Provides radon measurement and mitigation services. Helps protect homes in Russell, ON from dangerous gases.

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WSP Canada Inc.

Ottawa, ON
4.6(15)Google

WSP Canada Inc. is a C-NRPP certified radon testing and mitigation professional serving Ottawa, ON. They offer complete radon solutions from initial testing through to mitigation system installation.

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Buller Crichton Environmental Inc.

Ottawa, ON
5.0(5)Google

Health and safety consultants. Offers radon testing options for homeowners. Focus on protecting workers and occupational health.

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InAIR Environmental Ltd.

Ottawa, ON

Manages indoor and outdoor environmental quality for residential & commercial clients. Services include air quality assessments, mold testing & remediation, plus asbestos & lead management.

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BWC Contracting Inc

Carleton Place, ON

BWC Contracting Inc is a C-NRPP certified radon testing professional serving Carleton Place, ON. Their certified inspectors provide accurate radon measurements for homes and businesses.

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Rodon Emergency Management Inc.

Kemptville, ON

Rodon Emergency Management Inc. is a C-NRPP certified radon testing professional serving Kemptville, ON. Their certified inspectors provide accurate radon measurements for homes and businesses.

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Frequently Asked Questions: Radon in Stittsville

RadonFinder.ca lists C-NRPP certified radon testing and mitigation professionals serving Stittsville, Ontario. Browse the directory above to compare professionals by services offered, certifications, and reviews.
Most homeowners in Ontario pay between $2,200 and $3,800 for a complete radon mitigation system. Actual cost depends on your foundation type, home size, and the complexity of the installation. Request quotes from multiple professionals to compare.
Stittsville follows Health Canada's national guideline of 200 Bq/m³. If your home tests above this level, Health Canada recommends taking action to reduce radon within two years for levels between 200 and 600 Bq/m³, and within one year if above 600 Bq/m³.
Yes. Health Canada recommends testing every home in Canada, regardless of age, construction type, or location. Radon levels vary from house to house and even neighbouring homes can have very different readings. A long-term test of at least 91 days during the heating season is the most reliable method.
The most common system is active sub-slab depressurization (ASD). A certified professional installs a pipe through your foundation slab connected to a fan that draws radon from beneath the home and vents it safely above the roofline. Installation typically takes one day.

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Radon Resources for Stittsville

Tools and guides to help you understand radon risk and take action.

Check your radon risk
Estimate your risk based on province, home age, and foundation type.
Understand your test results
Learn what Bq/m³ means and when action is required.
DIY radon test kits
Compare test kit options starting from $10.
Radon guides & articles
In-depth guides on testing, mitigation, and health risk.
Browse all provinces
Find certified professionals anywhere in Canada.
Radon FAQ
Answers to the most common questions about radon.