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Radon Pros in New Hampshire
14 contractorsEPA zone context: New Hampshire includes many Zone 1 counties and has elevated average radon potential relative to national levels.
AR
Advanced Radon Mitigation & Water Treatment
4.9 (300 Google reviews)
Certified Professional
Licensed Provider: Corey J. Buchan
Full Service•Hooksett, NH
MitigationTestingCommercialWater Treatment
Certified RMS
Advanced Radon Mitigation & Water Treatment is a dedicated radon services company serving Hooksett, NH. Over 25 years of experience. Services include radon mitigation system installation, mitigation system design. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist certification. Rated 4.9/5 on Google based on 300 reviews.
AR
Airflow Radon Pro LLC
5.0 (6 Google reviews)
Certified Professional
Licensed Provider: Ryan B Farley
Full Service•Hooksett, NH
MitigationTestingNew ConstructionDiagnostic
Certified RMS/RMP
Airflow Radon Pro LLC is a dedicated radon services company serving Hooksett, NH. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 5.0/5 on Google based on 6 reviews. Offers real estate transaction testing.
EF
Erickson Foundation Solutions
4.8 (667 Google reviews)
Certified Professional
Licensed Provider: Matthew A. Erickson, Jr.
Full Service•Hudson, NH
MitigationTestingCrawlspaceCommercialVapor Barrier+1
Certified RMS/RMPFree Estimates
Erickson Foundation Solutions is a contractor offering radon-related services serving Hudson, NH. Over 40 years of experience. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Works with basements, slab foundations, crawlspaces. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 4.8/5 on Google based on 667 reviews. Offers free estimates, financing options.
AC
Allied Clearwater LLC
Certified Professional
Licensed Provider: Aaron Johnston
Full Service•Kingston, NH
MitigationTestingCommercialWater TreatmentDiagnostic
Certified RMS
BD
Black Dog Inspections, LLC
5.0 (9 Google reviews)
Certified Professional
Licensed Provider: Eino A. Anttila
Full Service•Nashua, NH
MitigationTesting
Certified RMS/RMP
Black Dog Inspections, LLC is a dedicated radon services company serving Nashua, NH. Services include radon mitigation system installation, mitigation system design, radon testing, radon measurement. Methods include heat recovery ventilation. Holds Certified Radon Mitigation Specialist and Certified Radon Measurement Professional certifications. Rated 5.0/5 on Google based on 9 reviews.
UW
US Water Consultants, Inc.
Certified Professional
Licensed Provider: Alexander Widdison
Full Service•Windham, NH
MitigationTestingCommercial
Certified RMSFree Estimates
Data provided by Google Maps
State Info
Radon levels vary house-to-house even in the same city. Testing your own home is the only reliable way to know your risk.
Popular Cities for Radon Mitigation in New Hampshire
Radon mitigation in Manchester, New Hampshire3 local contractors listedRadon mitigation in Hooksett, New Hampshire2 local contractors listedRadon mitigation in Hudson, New Hampshire2 local contractors listedRadon mitigation in Canterbury, New Hampshire1 local contractors listedRadon mitigation in Derry, New Hampshire1 local contractors listedRadon mitigation in Keene, New Hampshire1 local contractors listedRadon mitigation in Kingston, New Hampshire1 local contractors listedRadon mitigation in Lee, New Hampshire1 local contractors listedRadon mitigation in Nashua, New Hampshire1 local contractors listedRadon mitigation in Windham, New Hampshire1 local contractors listed
FAQ: Radon Mitigation in New Hampshire
Why does New Hampshire test high for radon?
Granite and related uranium-bearing formations increase baseline radon generation in soil gas.
Are well-sealed homes safer from radon?
Not always. Tighter homes can trap radon if soil-gas entry is not controlled.
How much does radon mitigation cost in New Hampshire?
Most homeowners in New Hampshire see mitigation quotes in the low-thousands, but the final cost depends on foundation type, fan location, and pipe routing complexity. A cost calculator can help you benchmark estimates before requesting bids.
Do I need radon testing in New Hampshire before hiring a contractor?
Yes. A valid short-term or long-term test is the fastest way to confirm if mitigation is needed and to scope the right system design.
What radon level is dangerous in New Hampshire?
EPA recommends action at 4.0 pCi/L, and many homeowners choose to reduce levels even below that threshold. New Hampshire includes many Zone 1 counties and has elevated average radon potential relative to national levels. ZIP-level lookup tools are useful for local context, but home testing is still required.
How do I choose a certified radon contractor in New Hampshire?
Look for current NRPP or NRSB credentials, ask for post-mitigation test expectations, and confirm local compliance details. New Hampshire does not require separate state mitigation licensing; NRPP/NRSB certification is the practical standard.
State Resources for New Hampshire
Radon mitigation cost in New Hampshire
Estimate likely project pricing by foundation type and system complexity.
Radon testing guide for New Hampshire homes
Learn when and how to test, plus how to interpret pCi/L results.
Radon levels and EPA zones in New Hampshire
See how state-level risk varies and what zone maps can and cannot tell you.
ZIP-level radon risk in New Hampshire
Check projected local risk by ZIP code before you request quotes.