Harwinton, CT Radon Levels

Q: What is the average radon level in Harwinton, CT?

Based on 1 user-submitted tests, the average radon level is 15.00 pCi/L.

Q: What EPA Radon Zone is Harwinton in?

Harwinton is in Litchfield County, EPA Zone 2.

Q: How much does radon mitigation cost in Harwinton?

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

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

Harwinton, CT Radon Facts

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

County Litchfield County, CT

Zip Code 06791

Avg. User Level 15.00 pCi/L

User Tests 1

This Litchfield County community in northwestern Connecticut has recorded a notably high radon level of 15.0 pCi/L, nearly four times the EPA action threshold. Harwinton's location in Connecticut's Berkshire foothills, with granite bedrock and colonial-era housing stock featuring stone foundations, contributes to significant radon accumulation potential. Given these alarming readings in zip code 06791, immediate radon testing and mitigation should be prioritized by all residents.

15.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Harwinton, CT. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Harwinton, CT Radon Mitigation

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Harwinton, CT Radon Levels

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

Radon Level	City	Home Age	Foundation
15 pCi/L	Harwinton, CT	21-50 Years	Full Basement

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Radon FAQ for Harwinton, CT

What is the average radon level in Harwinton, CT?

Based on 1 user-submitted test, the average radon level in Harwinton is 15.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Harwinton in?

Harwinton and the 06791 zip code are in Litchfield 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 Harwinton?

Radon mitigation in Harwinton 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 Harwinton?

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 Connecticut

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

City	Avg User Radon Level	Submissions
Hamden	4.75 pCi/L	4
West Hartford	4.25 pCi/L	4
Greenwich	7.67 pCi/L	3
Norwalk	7.00 pCi/L	1
Stamford	5.00 pCi/L	1
Middletown	4.00 pCi/L	1
Guilford	No submissions	0
Ridgefield	No submissions	0

Harwinton, CT Radon Levels

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

Harwinton, CT Radon Facts

Harwinton, CT Radon Mitigation

Need Radon Mitigation or Testing in Harwinton?

Harwinton, CT Radon Levels

Radon FAQ for Harwinton, CT

Most Active Radon Markets in Connecticut

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