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Shelton, CT Radon Levels

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


Shelton, CT Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Fairfield County, CT
Zip Code 06484
Avg. User Level 10.00 pCi/L
User Tests 2

Shelton in Fairfield County shows an average radon level of 10.0 pCi/L from local testing, significantly exceeding the EPA action threshold. The community's mix of older colonial homes and modern developments, many with full basements typical of southern Connecticut, creates conditions where radon can accumulate to concerning levels requiring immediate mitigation.

10.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Shelton, CT Radon Mitigation

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

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Shelton, CT Radon Levels

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

Radon LevelCityHome AgeFoundation
13 pCi/L Shelton, CT 21-50 Years Full Basement
7 pCi/L Shelton, CT 21-50 Years Full Basement

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

Radon FAQ for Shelton, CT

What is the average radon level in Shelton, CT?
Based on 2 user-submitted tests, the average radon level in Shelton is 10.00 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 Shelton in?
Shelton and the 06484 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 Shelton?
Radon mitigation in Shelton 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 Shelton?
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.

CityAvg User Radon LevelSubmissions
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