CONTACT
Have a Question?
⏳ Looking for a quick answer?
For the fastest answers to common questions (end-date entry, reminder emails, shipping instructions, customs declarations, etc.), please visit our FAQ section under Resources & Support in the top menu.
Most questions can be resolved rapidly.
You’ll also find all necessary forms and helpful documents in that section.
If you’re still unable to locate your answer, please use the contact form in the bottom-right corner to send us a message.
Contact Hours
Monday thru Friday 8:30 AM – 5:00 PM
Closed on weekends and holidays.
Phone Number
Contact info
+1-855-85-RADON (1-855-857-2366)
Office
PO Box 75154
Cap-Rouge Office
Quebec, QC G1Y 3C7
No devices should be shipped to this address. All devices must be sent directly to the laboratory, following the shipping instructions provided.
Important: Review Before Shipping Your Dosimeter
Returning Your Dosimeter — Checklist & New U.S. Customs Rules
Before returning your dosimeter, please review the SHIPME checklist to ensure everything is complete and accurate. Additionally, starting August 29, 2025, new U.S. customs requirements apply to parcels under $800. Our updated guide available here walks you through both the checklist and the new steps to avoid delays or issues with your return.
Please review the Resource & Support section as it may have the information you need.