OTTAWA & SURROUNDING AREAS
Certified radon testing and mitigation for Ottawa homes. Whether you’re starting with a test or already have a result, we’ll explain your options and help you take the next step.
C-NRPP Certified
Radon Measurement & Mitigation Professional
CARST Member
Canadian Association of Radon Scientists and Technologists
C-NRPP and CARST logos are the property of their respective organizations and are used under licence.
Radon is an invisible, odourless radioactive gas that can enter from the ground and build up indoors. Levels can differ even between neighbouring homes. Testing is the only way to know your home’s radon level.
A mitigation system can draw soil gas from beneath your home and release it outdoors, reducing the amount entering your living space.
Radon exposure is an important issue for Canadian homeowners, including those in the Ottawa region.
The 2024 Cross-Canada Radon Survey found elevated radon concentrations in homes across the country.
17.8% — Canada
An estimated 17.8% of Canadian single-detached, semi-detached and row-style homes had radon concentrations at or above 200 Bq/m³.
17.0% — Ottawa–Gatineau
In the Ottawa–Gatineau metropolitan area, 17.0% of homes in the survey data were at or above 200 Bq/m³.
200 Bq/m³ — Canada’s Radon Guideline
Health Canada recommends corrective action when a representative long-term radon result is at or above 200 Bq/m³.
Long-term radon exposure increases the risk of lung cancer. Radon is the leading cause of lung cancer among people who do not smoke.
Your neighbour’s radon level cannot tell you yours. Testing your own home is the only way to know.
Sources:
2024 Cross-Canada Radon Survey — national results (p. 24) and Ottawa–Gatineau metropolitan-area results (p. 39).
Canadian residential radon levels by regional group. Source: Cross-Canada Survey of Radon Exposure in Residential Buildings, 2024. Regional statistics do not predict the radon level of an individual home.
Whether you’re starting with a radon test or already have an elevated result, RADORA can help you understand the next step
Not sure about your home’s radon level?
Professional long-term radon measurement helps you understand your indoor radon concentration and make informed decisions.
We provide testing guidance, measurement services, and clear explanations of your results.
Already have a high radon result?
RADORA evaluates your foundation and property conditions to develop an appropriate radon reduction approach.
Our services include site assessment, system planning, installation, and guidance on post-mitigation verification.
Effective radon mitigation is more than installing a fan and pipe. It requires understanding the foundation, soil-gas movement, and conditions that affect system performance.
At RADORA, our approach is informed by building conditions, professional diagnostic methods, and Canadian radon mitigation guidance.
We examine relevant foundation features, potential entry pathways, sump pits, crawlspaces, and available installation routes.
Where appropriate, pressure field extension and communication testing help evaluate how suction can be established beneath the foundation.
We plan the mitigation approach around the building’s conditions, using CAN/CGSB-149.12-2024 as a technical reference, and explain the importance of system checks and follow-up radon testing.
Our goal is a suitable, clearly explained mitigation solution for your home.
RADORA is an Ottawa-based radon testing and mitigation company committed to providing clear information and property-specific solutions.
Certified in radon measurement and mitigation through the Canadian National Radon Proficiency Program.
Our work is supported by education in Chemical Engineering and professional experience in health and safety.
RADORA operates as an insured Canadian business, with clear proposals and defined scopes of work.
You'll communicate directly with our team. We explain your options, answer questions, and provide written estimates before work begins.
Share your address or neighbourhood, property type, and any radon test results you already have.
We'll review your needs and, where appropriate, arrange a property assessment to evaluate potential testing or mitigation options.
You'll receive an explanation of the recommended scope, expected costs, and next steps before deciding how to proceed.
Radon is a naturally occurring radioactive gas that can build up indoors. Long-term exposure increases the risk of lung cancer. Because radon is invisible and odourless, testing is the only way to know your home’s level.
Health Canada recommends a long-term test lasting at least 91 days, preferably with at least 91 days during the heating season, to obtain a reliable estimate of your home’s radon concentration.
Health Canada recommends corrective action within one year, and sooner at higher concentrations. A C-NRPP-certified mitigation professional can assess your property and discuss suitable reduction methods.
A common method is active soil depressurization, which uses a fan and piping to draw soil gas from beneath the foundation and release it outdoors before it enters the home.
The price depends on the foundation, diagnostic findings, installation access, equipment, and work required. RADORA can assess your property and provide a written estimate before installation.
Tell us your neighbourhood, property type, and whether you need testing or help with an existing radon result.
