Top Signs Your Home Needs a Radon Mitigation System

Radon gas is an invisible, odourless threat that can be present in any home. While it’s impossible to see or smell radon, its impact on your family’s health can be devastating—radon is classified as a carcinogen, and Health Canada attributes about 16% of lung cancer deaths to radon exposure in homes. At Radon First, we believe that protecting your home starts with awareness. Here are the top signs your home may need a radon mitigation system.

1. High Radon Test Results

The most direct sign you need a mitigation system is a radon test reading above Health Canada’s recommended action level of 200 Bq/m³. Even if your results are below this threshold, remember: there is no truly safe level of radon. Any measurable amount carries some risk, and mitigation can provide peace of mind.

How to Test: Radon testing devices are widely available and can be used for durations ranging from one week to 90 days. For the most accurate results, opt for a long-term test and retest every two years.

2. Unfinished or Poorly Sealed Basements

Homes with unfinished basements, visible cracks in the foundation, or gaps around pipes and drains are more vulnerable to radon entry. Radon seeps up from the soil and finds its way into your living spaces through even the smallest openings. If your basement is unfinished or you notice cracks, it’s time to consider both testing and mitigation.

3. Previous Water Intrusion or Persistent Dampness

A damp or musty basement isn’t just a nuisance—it can also be a sign that soil gases, including radon, are entering your home. Water and radon often travel together. If you’ve had water problems or notice persistent dampness, a radon mitigation system—especially one with a waterproofing membrane—can address both concerns.

4. Neighbourhood Risk Factors

If your neighbours have discovered high radon levels, your home could be at risk too. Radon problems often cluster in certain areas due to local geology. Don’t assume your home is safe just because you haven’t tested yet—your neighbour’s results are a strong incentive to take action.

5. It’s Been a While Since Your Last Test

Health Canada recommends testing your home every two years, or after any major renovations. If you can’t remember the last time you tested—or if you’ve never tested—now is the perfect time. If your results come back high, mitigation is the next step.

6. Recent Renovations or Foundation Work

Major renovations, especially those involving the foundation or basement, can alter airflow and create new entry points for radon. If you’ve recently renovated, retesting is essential. If levels have increased, a mitigation system will help restore your home’s safety.

7. Unexplained Respiratory Issues

While radon isn’t the only cause of respiratory symptoms, unexplained coughing, shortness of breath, or other issues in your household could be a sign of poor indoor air quality. Radon exposure is a leading cause of lung cancer in non-smokers, so it’s always better to err on the side of caution.

Why Choose Radon First?

Radon First provides advanced mitigation systems with years in the industry for both unfinished and finished basements. We’re committed to delivering the safest, most professional service in Edmonton and beyond.

Take Action Today

Radon is a serious risk—but it’s one you can control. If any of these signs apply to your home, don’t wait. Schedule a professional radon test and consult with the experts at Radon First about your mitigation options.

Contact us today for a free test or to book your system installation :

📍 11906 21 St NE, Edmonton, AB, T6S 1E9

📞 (587) 413-1510

✉️ contact@radonfirst.com

Protect your family. Trust Radon First to make your home safer.

Call now at 587-413-1510. Servicing the Edmonton and area.