Rochester, NH Radon Levels

Q: What EPA Radon Zone is Rochester in?

Rochester is in Strafford County, EPA Zone 2.

Q: How much does radon mitigation cost in Rochester?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Rochester radon levels and find certified testing and mitigation professionals to keep your home safe

Rochester, NH Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Strafford County, NH

Zip Code 03839

Positioned in Strafford County within New Hampshire's granite-rich terrain, Rochester demonstrates elevated radon concerns with an average level of 10.0 pCi/L that substantially exceeds EPA recommendations. The community's location near the Boston Metro, served by zip codes 03839, 03867, and 03868, sits atop granite bedrock known for producing high radon levels throughout New England. Homeowners should prioritize professional radon testing and mitigation, particularly in properties with basements or below-grade living spaces.

Rochester, NH Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Rochester, NH Radon Levels

User-submitted radon test readings from homes in the Rochester area.

Radon Level	City	Home Age	Foundation
10 pCi/L	Rochester, NH	0-20 Years	Full Basement

Have a radon test result for Rochester? Submit your reading to help other homeowners.

Radon FAQ for Rochester, NH

What EPA Radon Zone is Rochester in?

Rochester and the 03839 zip code are in Strafford County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Rochester?

Radon mitigation in Rochester typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Rochester?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in New Hampshire

Cities in New Hampshire with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Tamworth	12.67 pCi/L	6
Freedom	10.75 pCi/L	4

Rochester, NH Radon Levels

Check local Rochester radon levels and find certified testing and mitigation professionals to keep your home safe

Rochester, NH Radon Facts

Rochester, NH Radon Mitigation

Need Radon Mitigation or Testing in Rochester?

Rochester, NH Radon Levels

Radon FAQ for Rochester, NH

Most Active Radon Markets in New Hampshire

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Free Radon Mitigation Quote