Radon Mitigation in Marriottsville, Maryland

1 verified radon specialist serving Marriottsville. 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 Marriottsville

$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 Marriottsville

1 listing

Andrew Winnard

Marriottsville, Maryland

Free
✓ NRPP Measurement✓ NRPP Mitigation

Andrew Winnard is a radon professional serving Marriottsville, MD. He holds NRPP certifications in both radon measurement and mitigation. Andrew Winnard provides radon testing and mitigation services to help homeowners protect their families from radon exposure. Contact Andrew Winnard for more information.

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Radon Mitigation in Marriottsville — 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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