Old Saybrook, CT Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 7.00 pCi/L.

Q: What EPA Radon Zone is Old Saybrook in?

Old Saybrook is in Middlesex County, EPA Zone 1.

Q: How much does radon mitigation cost in Old Saybrook?

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

Avg: 7.00 pCi/L

Middlesex County

EPA Zone 1

2 user tests

Located at the mouth of the Connecticut River in Middlesex County, Old Saybrook sits on complex glacial and coastal deposits over bedrock formations. Testing data indicates an average radon level of 7.0 pCi/L, notably exceeding the EPA action threshold of 4.0 pCi/L. The area's Zone 1 classification and mix of historic and modern homes make testing essential for zip code 06475 residents.

7.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Old Saybrook, CT. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Old Saybrook, CT Radon Mitigation

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

Old Saybrook, CT Radon Testing

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

Old Saybrook, Connecticut Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Old Saybrook, CT	51-99 Years	Full Basement	Oct 2020
9 pCi/L	Old Saybrook, CT	51-99 Years	Full Basement	Oct 2019

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

Old Saybrook Radon Facts

Key details about the radon risk profile for Old Saybrook and the 06475 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Middlesex County, CT

Zip Code

06475

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

7.00 pCi/L

User Tests Submitted

Old Saybrook and the 06475 zip code are located in Middlesex 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 Old Saybrook, CT

What is the average radon level in Old Saybrook, CT?

Based on 2 user-submitted tests, the average radon level in Old Saybrook is 7.00 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 Old Saybrook in?

Old Saybrook and the 06475 zip code are in Middlesex 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 Old Saybrook?

Radon mitigation in Old Saybrook 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 Old Saybrook?

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