North Haven, CT Radon Mitigation and Testing

Q: What EPA Radon Zone is North Haven in?

North Haven is in New Haven County, EPA Zone 1.

Q: How much does radon mitigation cost in North Haven?

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

New Haven County

EPA Zone 1

Located in New Haven County, North Haven sits within Connecticut's central valley region where glacial deposits over bedrock create variable radon conditions. Testing data for this zip code 06473 community remains limited, making individual home testing essential for residents. Given Connecticut's geology and housing stock of mid-century homes with basements, professional radon testing is strongly recommended for all properties.

North Haven, CT Radon Mitigation

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

North Haven, CT Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

North Haven Radon Facts

Key details about the radon risk profile for North Haven and the 06473 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

New Haven County, CT

Zip Code

06473

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

North Haven and the 06473 zip code are located in New Haven County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for North Haven, CT

What EPA Radon Zone is North Haven in?

North Haven and the 06473 zip code are in New Haven County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in North Haven?

Radon mitigation in North Haven 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 North Haven?

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 with the most user-submitted radon test data in the state.

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