Best Radon Testing & Mitigation in Rosemere
About Radon in Rosemere, Quebec
Last updated: March 2026
Rosemere is served by C-NRPP certified radon professionals listed on RadonFinder.ca. Quebec's radon risk is concentrated in regions underlain by the Grenville geological province, including the Laurentians, Eastern Townships, the Outaouais, and parts of Mauricie, where uranium-bearing gneiss and granite produce elevated soil gas. The Montreal urban area, sitting on the St. Lawrence Lowlands, generally shows lower levels. Quebec has a high proportion of older housing stock in cities like Quebec City and Trois-Rivières, and older construction with block foundations and open sump pits tends to allow more radon entry.
Typical Mitigation Cost in Quebec
Near national average
Montreal-area labour rates apply in the urban corridor; rural and Laurentian regions may see higher costs due to contractor travel.
- •Foundation type: block, poured concrete, or stone foundations in older Quebec homes
- •Open sump pits and floor drains as radon entry points
- •Finished vs. unfinished basement: finishing adds pipe-routing complexity
- •Bilingual service availability in some rural areas
- •Age of home: pre-1980 homes often require more sealing work
Showing 1–16 of 19 professionals in Rosemere
L&B Radon Inc
Offers professional radon detection, measurement, and mitigation. RBQ licensed and PNCR-C accredited, guaranteeing best prices. Uses certified Radon X systems and specialized products for safety.
Spheratest
Certified PNCR-C professional for radon gas services in Montréal, QC. Specializes in residential, commercial, and investor client needs.
Climatisation Novatrix
Conçoit et installe des solutions HVAC performantes pour les projets de construction et rénovations résidentielles majeures. Effectue le nettoyage de systèmes de ventilation.
WSP
WSP is a C-NRPP certified radon testing professional serving Montreal, QC. Their certified inspectors provide accurate radon measurements for homes and businesses.
exp Services Inc.
exp Services Inc. is a C-NRPP certified radon testing professional serving Montreal, QC. Their certified inspectors provide accurate radon measurements for homes and businesses.
Renov-Action Michel Haineault Inc.
Renov-Action Michel Haineault Inc. is a C-NRPP certified radon mitigation professional serving Saint-mathias-sur-richelieu, QC. Their certified team installs sub-slab depressurization systems to reduce indoor radon to safe levels.
Radon Expert LM
Offers professional radon detection, measurement, and mitigation solutions. Licensed (RBQ 5821-5393-01) and PNCR-C accredited, using certified Radon X systems.
Radon Evolution Inc.
Offers professional radon measurement, testing, and mitigation services, including expert follow-up. Protect health by reducing radon gas.
Enspeco
Enspeco is a building inspection and engineering firm in Vaudreuil-Dorion, QC, whose engineers and inspectors serve residential and commercial clients. Alongside home inspections, structural engineering and energy assessments, it offers radon testing and radon mitigation.
Roland Grenier Construction Ltee
Roland Grenier Construction Ltee is a C-NRPP certified radon mitigation professional serving Anjou, QC. Their certified team installs sub-slab depressurization systems to reduce indoor radon to safe levels.
AXL-AIR Inc
AXL-AIR Inc is a C-NRPP certified radon testing professional serving Mascouche, QC. Their certified inspectors provide accurate radon measurements for homes and businesses.
AtmoTest
AtmoTest is an indoor air testing company offering radon testing alongside mold, asbestos, humidity and air quality testing. Samples go to accredited labs and results are reported against Health Canada guidelines. It serves homeowners, buyers and businesses in greater Montreal and the South Shore.
Local radon data
How common is high radon in Rosemere?
1 in 6.3
homes tested in the Rosemere area had radon above Health Canada's action level of 200 Bq/m³. Your home can be very different from its neighbours, so the only way to know your level is to test.
Postal areas nearby with the highest estimates
2,650 homes tested in the 2024 Cross-Canada survey. Source: the RadonFinder.ca radon map of Canada, built on the 2024 Cross-Canada survey, Health Canada data and Statistics Canada census data.
Open Rosemere on the radon mapTest before you call a pro
Know your radon level in Rosemere first
A home monitor tells you whether you need mitigation at all, and later confirms it worked. Health Canada bases decisions on a 3-month average, ideally through winter.
Compare all detectors · As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently Asked Questions: Radon in Rosemere
Browse Nearby Cities in Quebec
Other areas with radon professionals
Are you a radon professional in Rosemere? Claim and verify your free listing.
Learn more →Radon Resources for Rosemere
Tools and guides to help you understand radon risk and take action.