Radon test Montreal

Radon test Montreal | Detector and mitigation

Do you live in Montreal or Grand Montréal et Rive-Sud? Radon is an invisible radioactive gas that can build up in homes. In Quebec, up to 1 in 5 homes exceed 200 Bq/m³ — Health Canada's recommended action level. The only way to know if your home is at risk is to measure radon.

Areas covered: Laval, Longueuil, Brossard, Terrebonne, Repentigny, West Island and surrounding communities.

→ View the Quebec radon map by postal code

Our radon tests for Montreal

Order a 91-day test Quick 4-day test

FAQ — Radon in Montreal

Is radon high in Montreal?
Levels vary from house to house, even on the same street. Check our interactive map for area data, then confirm with a test.

How much does a radon test cost?
Our detectors are available online with delivery to Montreal. The 91-day test is the most reliable way to estimate your annual exposure.

What if results exceed 200 Bq/m³?
Health Canada recommends taking action. We offer C-NRPP certified mitigation systems installed by professionals.

→ See all cities in Quebec