Chapter 01 · Canada

Radon testing and mitigation in Canada

Find a professional with a Canadian National Radon Proficiency Program (C-NRPP) credential. Each listing shows the certification number, service, expiry, last-verified date, and official source.

Search Canada

Choose a province or territory and a service to see current credential records. Each list can be searched by city.

Searching by postal code or another location? Use the official C-NRPP finder.

Fig. 1 — Calgary, approximate. Pin marks the official Canadian Geographical Names Database city reference point, not a business address or service area.

Map source: Natural Resources Canada — Calgary. Contains information licensed under the Open Government Licence – Canada.

515current Canadian credentials

12provinces and territories with listings

163Canadian cities with listings

October 13, 2026Latest Canadian credential check. Individual record dates may be earlier. Sources and verification

Testing and mitigation are separate credentials; one person may have both.

Chapter 02

Provincial and territorial lists

Counts are current credentials for each province or territory and service.

Chapter 03

Browse by province or territory

We search all 13 Canadian provinces and territories. Published coverage includes only current credentials with verified locations and is not exhaustive. For additional locations, search the official C-NRPP finder by province or postal code. Testing and mitigation are separate certifications.

Alberta
British Columbia
Manitoba
New Brunswick
Newfoundland and Labrador
Northwest Territories
Nova Scotia
Nunavut
No eligible local records published. Search C-NRPP.
Ontario
Prince Edward Island
Quebec
Saskatchewan
Yukon

Hiring a radon professional in Canada

Health Canada recommends a C-NRPP mitigation professional for reducing radon in your home. Its Canadian guideline is 200 Bq/m³. Read Health Canada’s radon reduction guidance.

Choose testing (measurement) or mitigation for the work you need.
Ask who will perform the work and obtain that person’s certification number.
Enter the number in the C-NRPP certification check and match the name, credential type and expiry before hiring.

Canadian sources and verification

We check the official C-NRPP public finder using province searches for residential measurement and mitigation. CRT identifies measurement; CRMT identifies mitigation. We include only active credentials with a current expiry, the matching service, and a city and province on the person’s own record. C-NRPP certification is not a provincial licence.

Lists show the city on each credential record, not a service area. Maps use approximate city reference points from Natural Resources Canada. We do not publish street addresses or turn postal-code radius results into place listings. Our ZIP search serves US locations; for Canadian postal codes use the official finder.

We refresh Canadian records monthly. The verification date means we checked the source on that date; status may change before the next refresh. If the official record differs, rely on it. Records past their expiry or more than 31 days since verification are excluded when the site is rebuilt.

This independent directory is not affiliated with Health Canada, CARST or C-NRPP. No listing is paid or sponsored. Report a correction with the C-NRPP number.