New Canaan, CT Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is New Canaan in?

New Canaan is in Fairfield County, EPA Zone 1.

Q: How much does radon mitigation cost in New Canaan?

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

Avg: 4.00 pCi/L

Fairfield County

EPA Zone 1

1 user test

New Canaan is located in Fairfield County, Connecticut. With 1 user-submitted readings averaging 4.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 06840 zip code.

4.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

New Canaan, CT Radon Mitigation

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

New Canaan, CT Radon Testing

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

New Canaan, Connecticut Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	New Canaan, CT	21-50 Years	Full Basement	Nov 2020

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

New Canaan Radon Facts

Key details about the radon risk profile for New Canaan and the 06840 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Fairfield County, CT

Zip Code

06840

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

New Canaan and the 06840 zip code are located in Fairfield 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 New Canaan, CT

What is the average radon level in New Canaan, CT?

Based on 1 user-submitted test, the average radon level in New Canaan is 4.00 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 New Canaan in?

New Canaan and the 06840 zip code are in Fairfield 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 New Canaan?

Radon mitigation in New Canaan 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 New Canaan?

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