01
Radon Testing
Professional 48–72 hour radon measurement using certified electronic continuous monitors and Health Canada-approved protocols.
Calgary radon testing & mitigation
Simple, honest radon testing and mitigation.
Test your home, understand your results, and fix high radon with a certified local team.
C-NRPP certified · CARST member · 5-year warranty · Under 75 Bq/m³ guarantee
What we do
Testing and mitigation, clearly explained.
Focused on the two things that matter most: accurate testing and effective mitigation.
02
Radon Mitigation
Sub-slab depressurization systems designed for your home to draw radon from beneath the foundation and vent it safely outside.
03
Post-Installation Verification
After installation, we verify performance and provide documentation so you know the system is working.
Why testing matters
Radon is invisible. Testing is the only way to know.
Radon is a radioactive gas that can enter through cracks, sumps, slab openings, and foundation gaps. You cannot see it, smell it, or taste it.
✓Calgary homes can test high. Your neighbour’s result does not predict yours.
✓Testing is simple. We place a monitor, collect it after 48–72 hours, and review results with you.
✓Mitigation is proven. A properly installed system can dramatically reduce radon levels.
✓We guarantee results. Post-mitigation levels under 75 Bq/m³, in writing.
About ATMOS
Local, certified, and built around doing the job properly.
ATMOS Radon Mitigation is a Calgary-based company serving homeowners across the city and surrounding communities. We keep the process straightforward: test accurately, explain clearly, install cleanly, and verify the result.
✓C-NRPP Mitigation Certification: CRMT-202885
✓C-NRPP Testing Certification: CRT-202864
✓CARST Member
✓Systems designed for Alberta homes and cold-weather performance
Google reviews
What homeowners say.
★★★★★
“The Team at ATMOS got our crazy high reading of Radon of 1400 down to 20! Excellent customer service. They had it professionally and cost effectively repaired within 72 hrs after contacting them. Cannot recommend them enough.”
★★★★★
“Amazing group of guys. They were able to come and install the fan and bring our numbers from 288 down to 33 in 1 day. Very friendly crew, very easy to work with. Highly recommend!”
★★★★★
“Tabi and team are able to answer any questions and have solutions to solve any mitigation issues. Very responsive and keep you in the loop. Our numbers have dropped from 200 on average to a low of 20!”
★★★★★
“We used Atmos Radon to test and mitigate our home in northeast Calgary and had a fantastic experience! Tabi was incredible to work with, explained everything thoroughly, and the work done was beyond our expectations.”
Common questions
Simple answers before you book.
Radon can feel technical. The process does not have to be.
✓How do I know if my home has high radon?
Testing is the only way to know. We place a monitor, collect the result, and explain what it means.
Testing is the only way to know. We place a monitor, collect the result, and explain what it means.
✓What happens if my levels are high?
We show you practical mitigation options and give you a clear estimate before any work starts.
We show you practical mitigation options and give you a clear estimate before any work starts.
✓How long does mitigation take?
Most standard residential systems are completed in one day, followed by verification testing.
Most standard residential systems are completed in one day, followed by verification testing.
Not sure where to start?
If you have not tested yet, start with a free test. If you already have a high result, request a free mitigation estimate.
Contact
Ask a question or book an appointment.
Call or text 587-436-7780, or send the form and we’ll follow up.