Preston, CT Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is Preston in?

Preston is in New London County, EPA Zone 1.

Q: How much does radon mitigation cost in Preston?

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

Avg: 5.00 pCi/L

New London County

EPA Zone 1

1 user test

Located in New London County in southeastern Connecticut, Preston sits on crystalline bedrock and glacial deposits that can produce elevated radon levels. Local testing shows an average of 5.0 pCi/L, which exceeds the EPA's 4.0 pCi/L action threshold, indicating homeowners in the 06365 area should consider radon mitigation.

5.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Preston, CT Radon Mitigation

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

Preston, CT Radon Testing

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

Preston, Connecticut Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Preston, CT	21-50 Years	Full Basement	Jan 2019

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

Preston Radon Facts

Key details about the radon risk profile for Preston and the 06365 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

New London County, CT

Zip Code

06365

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

5.00 pCi/L

User Tests Submitted

Preston and the 06365 zip code are located in New London 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 Preston, CT

What is the average radon level in Preston, CT?

Based on 1 user-submitted test, the average radon level in Preston is 5.00 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 Preston in?

Preston and the 06365 zip code are in New London 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 Preston?

Radon mitigation in Preston 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 Preston?

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