Radon Mitigation in Thornton, Colorado

11 verified radon specialists serving Thornton. Every listing shows the credentials we verified.

Informational only. This page helps you find certified professionals. It is not medical, legal, or structural safety advice. For any health or safety hazard, consult a certified/licensed expert. See our verification methodology.

Typical cost in Thornton

$800–$2,500

Credentials to expect

NRPP Certified, NRSB Certified, AARST Member

Key fact

Radon causes ~21,000 lung-cancer deaths per year in the U.S. (EPA).

Radon specialists in Thornton

11 listings

Alpine Building Performance LLC

Thornton, Colorado

Featured
✓ Xcel Energy Trade Partner✓ Denver Metro Association of Realtors Affiliate Member

Alpine Building Performance LLC is a home and commercial real estate inspection company based in Thornton, Colorado, serving Denver, Boulder, Castle Rock, and surrounding communities throughout the Denver Metro area. The company focuses on delivering modern property inspections grounded in building science expertise, with a commitment to client health, safety, and comfort. Alpine Building Performance is fully insured and employs certified InterNACHI Master and Professional Home and Commercial Inspectors. The company has earned recognition as a honored recipient of the 2026, 2025, and 2024 Best of Mile High Home Inspections awards, and the 2022 DMAR Industry Partner of the Year. Alpine Building Performance is a proud trade partner with Xcel Energy and an affiliate member of the Denver Metro Association of Realtors. The company provides personalized digital inspection reports and clear communication to help clients make informed decisions. Service areas include Arvada, Englewood, Aurora, Westminster, Castle Rock, Boulder, Evergreen, and the broader Denver, Colorado region.

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Kenneth Mitchell

Thornton, Colorado

Featured
✓ CO DORA Radon Mitigation Professional✓ Radon Mitigation Professional

Kenneth Mitchell is a Radon Mitigation Professional in Thornton, CO, holding certifications as a CO DORA Radon Mitigation Professional. He provides radon mitigation services to help protect homes from radon gas exposure. Contact Kenneth Mitchell for more information.

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Rapid Radon Relief

Thornton, Colorado

Pro
5 (311 reviews)
✓ NRPP Certified

Rapid Radon Relief provides professional radon testing, detection, and mitigation services in the Denver area. They offer NRPP certified radon mitigation systems with a 10-year warranty on the fan and lifetime warranty on the system, serving both homeowners and realtors throughout Colorado.

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Air Matters

Thornton, Colorado

Pro
✓ NRPP Measurement✓ NRPP Mitigation

Air Matters is a certified radon professional operating in Thornton, CO. The company maintains NRPP Measurement and NRPP Mitigation certifications, providing expertise in radon testing and mitigation services. Contact Air Matters for more information.

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Albert Doughty

Thornton, Colorado

Pro
✓ CO DORA Radon Mitigation Professional✓ Radon Mitigation Professional

Albert Doughty is a radon mitigation professional serving Thornton, Colorado. He holds certification as a CO DORA Radon Mitigation Professional and is a certified Radon Mitigation Professional. Contact Albert Doughty for more information.

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Dirck Parsons

Thornton, Colorado

Pro
✓ CO DORA Radon Mitigation Professional✓ Radon Mitigation Professional

Dirck Parsons is a radon mitigation professional serving Thornton, Colorado. He is certified as a Colorado DORA Radon Mitigation Professional and holds certification as a Radon Mitigation Professional. Contact Dirck Parsons for more information.

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Alexander E Hinton

Thornton, Colorado

Free
✓ NRPP Measurement✓ NRPP Mitigation

Alexander E Hinton is a radon professional in Thornton, CO. He holds NRPP Measurement and NRPP Mitigation certifications, providing radon assessment and mitigation services. Contact Alexander E Hinton for more information.

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Alexander Hinton

Thornton, Colorado

Free
✓ CO DORA Radon Mitigation Professional✓ Radon Mitigation Professional

Alexander Hinton is a radon mitigation professional serving Thornton, Colorado. He is certified as a Colorado Department of Regulatory Agencies (CO DORA) Radon Mitigation Professional and holds Radon Mitigation Professional certification. Hinton provides radon mitigation services to address radon contamination in residential properties. Contact Alexander Hinton for more information.

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Amancio Virrey Ramirez

Thornton, Colorado

Free
✓ CO DORA Radon Measurement Professional✓ Radon Measurement Professional

Amancio Virrey Ramirez is a radon measurement professional in Thornton, Colorado. He holds certification as a CO DORA Radon Measurement Professional and is a Radon Measurement Professional. He provides radon measurement services to help homeowners assess radon levels in their properties. Contact Amancio Virrey Ramirez for more information.

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Eric Aberle

Thornton, Colorado

Free
✓ CO DORA Radon Mitigation Professional✓ Radon Mitigation Professional

Eric Aberle is a radon mitigation professional based in Thornton, Colorado. He holds certifications as a Colorado DORA Radon Mitigation Professional and Radon Mitigation Professional. Contact Eric Aberle for more information.

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Johnny Bates

Thornton, Colorado

Free
✓ CO DORA Radon Mitigation Professional✓ Radon Mitigation Professional

Johnny Bates is a Radon Mitigation Professional serving Thornton, CO. He holds both a Colorado Department of Regulatory Agencies (DORA) Radon Mitigation Professional certification and a Radon Mitigation Professional certification. Contact Johnny Bates for more information.

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Radon Mitigation in Thornton — FAQ

What radon level requires mitigation?
The EPA action level is 4.0 pCi/L. Mitigation is recommended at or above this; consider it between 2–4 pCi/L.
How much does radon mitigation cost?
Most residential systems run $800–$2,500, depending on home size, foundation type, and radon level.
Should the contractor be NRPP-certified?
Yes. NRPP or NRSB certification verifies the contractor is trained and tested to AARST standards. Every provider here is listed with their credential.

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