New Hampshire

Radon Professionals in New Hampshire

29 certified professionals 18 cities High Radon Risk (EPA Zone 1)

Find NRPP-certified radon testing and mitigation professionals across New Hampshire. Browse by city to see professionals in your area. New Hampshire requires radon disclosure during real estate transactions.

High Radon Risk State

New Hampshire is classified as EPA Zone 1, meaning the predicted average indoor radon screening level is above 4 pCi/L (the EPA action level). The EPA strongly recommends that all homes in New Hampshire be tested for radon. If elevated levels are found, a certified mitigation professional can install a system to reduce radon by up to 99%.

Radon Services in New Hampshire

New Hampshire has 29 NRPP-certified radon professionals in our directory across 18 cities. 19 are certified for radon mitigation system installation. 18 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.