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.

Radon Mitigation in Somis, California

3 verified radon specialists serving Somis. 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 Somis

$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 Somis

3 listings

We're still building out our Somis directory. These are the 3 verified radon specialists we've confirmed so far — see more across California.

Fred Ellrot

Somis, California

Featured

✓ NRPP Measurement✓ NRPP Mitigation

Fred Ellrot is a radon professional based in Somis, California. He holds NRPP certifications in both radon measurement and mitigation, demonstrating expertise in testing and remediation services. Contact Fred Ellrot for more information.

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Fred Ellrott Sr.

Somis, California

Pro

✓ NRPP Measurement✓ NRPP Mitigation

Fred Ellrott Sr. operates as a radon professional in Somis, California. He is certified by the National Radon Proficiency Program (NRPP) in both radon measurement and radon mitigation. His dual NRPP certifications indicate his qualifications to assess radon levels in homes and implement effective mitigation solutions. Contact Fred Ellrott Sr. for more information.

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ARP Mitigation Professional

Somis, California

Free

✓ Certified Mitigation✓ NRPP Advanced Certificate Multi-Family Mitigation

ARP Mitigation Professional is a radon mitigation service located in Somis, CA. The business is certified as a Radon Professional with Certified Mitigation credentials and holds an NRPP Advanced Certificate in Multi-Family Mitigation. Contact ARP Mitigation Professional for more information.

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Radon Mitigation in Somis — 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.

Other services in Somis

Foundation Repair

in Somis, California

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