C-NRPP Certified Radon Companies in Sherbrooke

Every company holding current Canadian National Radon Proficiency Program certification that is based in Sherbrooke, or that names Sherbrooke in its own service area. Listed free, whether or not they know this page exists.

Two lists, because the difference is a fact and the alternative is a guess. The first is companies whose registered address is here. The second is companies based elsewhere in Quebec that state they cover this area. We do not assume that a firm in one town serves the next one over, so if you do not see enough names, the full Quebec list has everyone.

Based in the Sherbrooke Area, 2

Their registered address with C-NRPP is in this area. The town on each card is the one they gave the registry.

Certified to Install the Fix

Alerte radon Granby INC

Based in Granby, Quebec
measurementmitigation
Serves Granby (their own stated coverage)

Envirosol

Based in Sherbrooke, Quebec · website
measurementmitigationcommercial measurementcommercial mitigation
Serves Sherbrooke (their own stated coverage)

What the Two Certifications Mean

C-NRPP certifies separately for measurement, finding out what a home reads, and for mitigation, installing the system that fixes it. Plenty of companies hold only one. If a test has come back high, you want a company on the first list above.

See also: the Sherbrooke radon map, every certified company in Quebec, and what counts as a safe level.

Certification data from the Canadian National Radon Proficiency Program public registry, read on 5 September 2026. Service areas are each company's own words. Nothing on this page is paid for.