French Get a Free Radon Consultation Today Contact us for a free consultation on all Radon related matters and HVAC related IAQ issues. Courriel arthur@radongatineau.com Téléphone Arthur: 613-203-9753 Address 8 Chemin du Parc. Chelsea Quebec J9B1C2 Radon Gatineau mitigation systems all come with a lifetime guarantee against leakage and a five year fan replacement warranty. We are proud a Member of Canadian Association of Radon Scientists and Technologists (CARST).