NC Department of Health and Human Services · NC Radon Program
North Carolina radon (air)
No state company roster to republish. Updated / retrieved 2026-11-02 (US/Pacific).
Find a certified North Carolina radon pro (NRPP search)
If you are not sure you need a pro yet, see when a DIY radon test kit is enough or how to test a home for radon.
North Carolina does not yet license radon testers or mitigators, and the NC Radon Program publishes no public company list to republish. Its FAQ answer to “How do I find a certified professional?” links to its own testing and mitigation pages, which point to national certification bodies instead of naming companies. This page does not invent company names, phones, licenses, or addresses to fill that gap.
Who to hire: the program says it “highly recommends hiring a trained radon measurement professional” but cannot endorse any certification company or individual, so research qualifications and ask for references. It links three certifying organizations: NRPP Find a Pro, NRSB Find a Professional, and Inspector Nation. For mitigation it names NRPP and NRSB and points to the ANSI/AARST standards.
State approval in progress: under Session Law 2023-91 (House Bill 782), NCDHHS adopted temporary rules (10A NCAC 15 .1801, effective February 14, 2024) to approve radon proficiency programs, and the program says it is developing a Radon Proficiency Program. Approval is optional for certifying organizations. Its approved list currently names INAC (Inspector Nation Advanced Certifications), NRSB, and NRPP, which are certifying bodies, not local contractors.
Complaints: the program says to report a radon testing or mitigation company that wronged you to the North Carolina Attorney General.
What the NC Radon Program says North Carolina homeowners can do
- The program recommends that every home be tested, including condos, town homes, crawl-space and slab homes, manufactured and modular homes, and apartments.
- Discounted kits: the program links an Air Chek North Carolina store. On 2026-11-02 it listed a 3-7 day short-term kit at $12.95 (price includes analysis and shipping) and a long-term alpha track kit at $27.95. Prices can change.
- Test steps: start with a short-term test; at 4 pCi/L or higher, follow up with a long-term or second short-term test, and fix the home if the long-term result or the average of two short-term tests is 4 pCi/L or higher. The program adds that many homes can be brought to 2 pCi/L or lower, so consider fixing at 2-4 pCi/L.
- Cost: the program’s mitigation page says the average contractor cost is about $1,500, ranging from about $1,000 to $2,500.
- Already have a system? The program says not to assume your level is low: test at most every five years, with or without a mitigation system.
- By county: the County Testing and Mitigation Recommendations page lists all 100 counties. The program’s NC Radon Data map (updated August 6, 2025) shows the highest test result recorded in each county, and the program warns that radon levels are site specific, so only a test tells you your home’s level.
- Radon can also be in private well water, and the program recommends testing indoor air first; this index page covers indoor air only.
Official sources
- NC Radon Program (NCDHHS; retrieved 2026-11-02; primary hub, FAQ, kit store link, complaints)
- NC Radon Program — Testing for Radon (retrieved 2026-11-02; hiring guidance, NRPP/NRSB/Inspector Nation, no company list)
- NC Radon Program — Radon Mitigation (retrieved 2026-11-02; NRPP/NRSB, cost, contract checklist)
- NC Radon Program — Radon Proficiency Programs (retrieved 2026-11-02; Session Law 2023-91, approved certifying bodies)
- NC Radon Program — County Testing and Mitigation Recommendations
- NC Radon Program — NC Radon Data (map updated August 6, 2025)
- NRPP Find a Pro (linked by NCDHHS)
- NRSB Find a Professional (linked by NCDHHS)
- U.S. EPA Radon
This index does not rank contractors or take referral fees. No Amazon kit links on this state page. This page covers indoor air only, not well water.