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 Sullivan, Ohio

2 verified radon specialists serving Sullivan. 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 Sullivan

$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 Sullivan

2 listings

Black River Radon LLC

Sullivan, Ohio

Featured

✓ AARST Member

Black River Radon LLC provides professional radon professional in Sullivan, OH. The company holds AARST Member certification. Contact Black River Radon LLC for more information.

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Black River Radon LLC

Sullivan, Ohio

Pro

4.9 (68 reviews)

✓ Licensed Radon Testing Specialist (Ohio License #RS456)✓ State Licensed Radon Contractor (Ohio License #RC291)

Black River Radon LLC is a locally owned and operated radon mitigation and testing company based in Sullivan, Ohio, serving Northeast Ohio homeowners, businesses, and real estate clients. Founded and operated by Matthew Gray, the company holds Ohio state licenses as both a Radon Testing Specialist and a Radon Contractor. Black River Radon specializes in radon mitigation system installation, repairs to existing radon systems, troubleshooting, filter cleaning, sump repair, and certified 48-hour radon testing for a range of clients including homeowners, commercial properties, schools, and daycares. The company follows all State and Federal EPA requirements as well as OSHA guidelines, and guarantees radon levels will be reduced below 4 pCi/L in livable areas. Black River Radon offers free estimates, cash discounts, and veteran or military discounts on mitigation services. With over 10 years of construction experience spanning plumbing, roofing, and carpentry, the owner brings hands-on expertise to every installation. The business is fully insured and maintains a strong local reputation, holding a 4.9-star rating across 66 customer reviews.

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Radon Mitigation in Sullivan — 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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