All 2 companies holding current Canadian National Radon Proficiency Program certification across Newfoundland and Labrador, sorted by what they are actually certified to do.
Certified to install a radon reduction system in a home. Most of these also test.
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.
Certified for commercial buildings. Listed for completeness; not who a homeowner calls.
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Something wrong, missing, or out of date?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 Newfoundland and Labrador radon map, and what counts as a safe level.