C-NRPP Certified Radon Companies in Quebec
All 46 companies holding current Canadian National Radon Proficiency Program certification across Quebec, sorted by what they are actually certified to do.
Every certified company is listed free, whether or not they know this page exists. Paid featured placements are marked Featured; nothing else on this page is paid for.
Read this first, because the official registry does not make this distinction and it matters. If a test came back high and you want it fixed, you need a company certified for residential mitigation. If you only want to find out where you stand, residential measurement is enough, and you can also buy a long-term test kit and do it yourself. Several firms below are engineering and consulting practices that work on commercial buildings and will not come to a house.
Residential Mitigation, 28 Companies
Certified to install a radon reduction system in a home. Most of these also test.
Action-Radon.net Inc.
measurementmitigationcommercial measurementcommercial mitigation
Serves Toute la province de Québec (their own stated coverage)
Alerte radon Granby INC
Based in Granby, Quebec
measurementmitigation
Serves Granby (their own stated coverage)
Catherine Plourde
Based in Quebec, Quebec
measurementmitigation
Serves Quebec (their own stated coverage)
Construction Nivo.-Tech. inc.
measurementmitigation
Serves Jonquière, QC (their own stated coverage)
Eco Radon Solutions
measurementmitigationcommercial measurementcommercial mitigation
Englobe Corp.
measurementmitigation
Serves Quebec (their own stated coverage)
Enspeco
measurementmitigation
Serves Vaudreuil-Dorion; Residential Measurement; Vaudreuil-Dorion; Greater Montréal and Montérégie (their own stated coverage)
Envirosol
measurementmitigationcommercial measurementcommercial mitigation
Serves Sherbrooke (their own stated coverage)
Eva Radon
measurementmitigationcommercial measurementcommercial mitigation
Serves la région de Québec et Chaudière-Appalaches (their own stated coverage)
Gaz Radon Québec
measurementmitigationcommercial measurementcommercial mitigation
Groupe ABS
measurementmitigationcommercial measurement
Serves all over Québec / service à travers le Québec (their own stated coverage)
Immobilier Gestimpros
mitigation
Serves Beloeil, QC (their own stated coverage)
Inspection Domiland Inc.
measurementmitigationcommercial measurementcommercial mitigation
Serves MONTREAL, RIVE-SUD, LAVAL etc (their own stated coverage)
Inspections Bouclier Inc.
Based in Kirkland, Quebec
measurementmitigation
Serves Kirkland (their own stated coverage)
Isolation MJ
measurementmitigationcommercial mitigation
Serves St-Alexandre-de-Kamouraska (their own stated coverage)
L&B Radon Inc
measurementmitigationcommercial measurement
Le Groupe Gesfor Poirier, Pinchin, Inc.
measurementmitigationcommercial measurementcommercial mitigation
Serves Montreal; Rimouski; Residential Mesure; Quebec; Saint-Leonard; Québec, Chaudière-Appalaches, Mauricie, Côte-Nord, Bas-Saint-Laurent, Gaspésie (their own stated coverage)
Les Pros du Radon
measurementmitigation
Serves Saint-Augustin-de-Desmaures (their own stated coverage)
MB Radon Solutions
measurementmitigationcommercial measurementcommercial mitigation
Serves Ottawa/Gatineau region and surrounding areas (their own stated coverage)
Protection Radon Inc.
measurementmitigationcommercial measurementcommercial mitigation
Serves Maria (their own stated coverage)
Radon Evolution Inc.
measurementmitigationcommercial measurementcommercial mitigation
Serves Residential Mesure, Atténuation, CNRCC, Lanaudière, Laurentide, laval, Montréal, Montérégie (their own stated coverage)
Radon Expert LM
measurementmitigationcommercial measurementcommercial mitigation
Serves À travers la province (their own stated coverage)
Radon Expert Solutions Inc.
measurementmitigation
Serves Laurentides, Laval, Lanaudière, Rive-Nord, Basse-Laurentides (their own stated coverage)
Radon Montreal
measurementmitigation
Serves Saint-Lazare (their own stated coverage)
Radon Provincial
measurementmitigationcommercial measurementcommercial mitigation
Serves Capitale-Nationale (Québec); Chaudière-Appalaches; Centre du Québec; Saguenay-Lac-Saint-Jean; Mauricie; Quebec, Levis, Beauce, Lac Beauport; Capitale-Nationale (Québec); Chaudière-Appalaches; Centre-du-Québec; Saguenay-Lac-Saint-Jean; Mauricie (their own stated coverage)
Renov-Action Michel Haineault Inc.
mitigation
Serves St-mathieus-sur-richelieu (their own stated coverage)
Services-conseils Aqua Ingenium inc.
measurementmitigation
Serves Matane (their own stated coverage)
Solutions Radon MB
measurementmitigationcommercial measurementcommercial mitigation
Serves Ottawa/Gatineau/Chelsea (their own stated coverage)
Residential Measurement Only, 15 Companies
Certified to measure radon in a home but not to install the fix. Several are home inspectors who test as part of an inspection, which is often how radon first comes up in a property sale.
AccuStarCanada / Rn222 inc.
measurementcommercial measurement
Serves Quebec; Across Canada (their own stated coverage)
Architecture Boudreau Inc.
measurement
AtmoTest
measurementcommercial measurement
AXL-AIR Inc
measurementcommercial measurement
Détection Magnova
Based in Quebec, Quebec
measurementcommercial measurement
Inspectair Habitat Inc.
Based in Trois-Rivières, Quebec
measurementcommercial measurement
Le Groupe Gesfor Poirier, Pinchin Inc. (Head Office)
measurementcommercial measurement
LEGAULT-DUBOIS INC.
Based in La Prairie, Quebec
measurementcommercial measurement
Serves Montreal area (their own stated coverage)
Mathieu Poirier-Longuépée
Based in Havre-aux-maisons, Quebec
measurement
Radon Maison
Based in Montreal, Quebec
measurement
SDG Projets
Based in Levis, Quebec
measurementcommercial measurement
Spheratest
measurementcommercial measurement
Sébastien Bernier
Based in Mascouche, Quebec
measurement
Test Radon Québec
Based in Sainte-Victoire de Sorel, Quebec
measurementcommercial measurement
WSP
Based in Montreal, Quebec
measurement
Serves Montreal (their own stated coverage)
Commercial and Industrial Only, 3 Companies
Certified for commercial buildings. Listed for completeness; not who a homeowner calls.
exp Services Inc.
commercial measurement
Serves Quebec region; Montreal (their own stated coverage)
Roland Grenier Construction Ltee
Based in Anjou, Quebec
commercial mitigation
Serves Anjou (their own stated coverage)
Vincent Robitaille
Based in Québec, Quebec
commercial measurement
How This List Is Put Together
Every company here holds current certification with the Canadian National Radon Proficiency Program, which is the only radon certification recognised in Canada. The list is taken from C-NRPP's own public directory and grouped by the certifications each company actually holds. It is ordered alphabetically within each group.
Every certified company is listed here free, and the free listings are ordered alphabetically rather than by anything we were paid for. Where a company has taken a featured placement it is marked Featured, clearly, in the listing itself, so you always know which is which. Anything unmarked is here because it holds the certification, not because it paid.
This page does not rank companies by quality, because we have not assessed their work and it would be dishonest to imply otherwise. Certification tells you someone has been trained and tested to a national standard. It does not tell you what they are like to deal with. Ask for references and get more than one quote, the same as you would with any trade.
Something wrong, missing, or out of date? Tell us and it gets fixed.
See also: the Quebec radon map, and what counts as a safe level.