Delaware

Radon Professionals in Delaware

9 certified professionals 5 cities Moderate Radon Risk (EPA Zone 2)

Find NRPP-certified radon testing and mitigation professionals across Delaware. Browse by city to see professionals in your area.

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Select your city to see certified radon professionals in your area.

Hartly 1 Milton 1 New Castle 1 Newark 1 Wilmington 5

Radon Services in Delaware

Delaware has 9 NRPP-certified radon professionals in our directory across 5 cities. 3 are certified for radon mitigation system installation. 9 hold radon testing certifications.

All professionals listed are certified through the National Radon Proficiency Program (NRPP), which is administered by AARST. NRPP certification requires passing a national exam, maintaining continuing education, and following strict quality assurance protocols.

Radon Guides for Delaware

Radon Disclosure

Radon Disclosure Requirements When Selling a Home in Delaware

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Radon Levels

Average Radon Levels in Delaware: EPA Zone Data and What It Means

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Radon Mitigation Cost

Radon Mitigation Cost in Delaware: What to Expect (2026)

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