Only the Best

Radon Monitoring Equipment

We use AirThings Corentium Pro continuous radon monitors. These radon monitors are widely accepted as being among the best monitors available in the industry. You will receive the results of the radon test the same day the test is completed.

Trained & Certified

Effective July 2022, State of Colorado law requires radon measurement and mitigation businesses be trained by a nationally-approved program and licensed by the Colorado Department of Regulatory Agencies (DORA). We are nationally certified and licensed by the State of Colorado. Verify license.

Sean Williford, Owner, RMP, RMS

Thank you for visiting our website and for your interest in learning more about Spin Radon. I have a background in home inspections and a passion for radon measurement. My passion is from personal experience with negative health effects from radon exposure. I am certified by the National Radon Proficiency Program (NRPP) as a Residential Radon Measurement Professional and certified by the National Radon Safety Board (NRSB) as a Radon Measurement Specialist.

NRPP Radon Measurement Provider (RMP)
NRSB Radon Measurement Specialist (RMS)
State of Colorado Radon Measurement Professional 

Harvard Business School
Leadership Principles

Metropolitan State University of Denver
Bachelor of Science

Airthings Corentium Pro Radon Monitor


Frequently Asked Questions


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Who should get a radon test?

The EPA recommends that properties have a radon test completed once every two years. This includes homes with high radon levels, homes with previously low radon levels, and homes with active and passive mitigation systems.

Can this be added to my home inspection?

Absolutely! If you did not schedule a radon test with your inspector, you can schedule with us.

What equipment do you use?

We use Airthings Corentium Pro continuous radon monitors. These are widely considered one of the best radon monitors in the industry. There are times that we may use other radon testing equipment as well, but these are our “go-to’s.”

Does your online scheduler show actual available times?

Yes! When you book instantly online, you are seeing real-time available appointment times. When you book, it will reserve the time slot you selected.

Do you partner with home inspection companies?

We do! As you know, radon testing equipment is costly and requires extensive recordkeeping, maintenance, and valuable time. Outsource your radon testing with us and you know you’ll be in good hands.

ready to schedule?

Office Location

Fort Collins, Colorado

Call Us

(970) 792-4440