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Canterbury, CT Radon Levels

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


Canterbury, CT Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Windham County, CT
Zip Code 06331
Avg. User Level 5.00 pCi/L
User Tests 1

Situated in rural Windham County in eastern Connecticut, Canterbury shows a radon level of 5.0 pCi/L, exceeding the EPA action threshold and indicating the need for mitigation consideration. The area's bedrock of schist and gneiss, overlaid by glacial deposits, creates conditions favorable for radon accumulation. Historic homes and newer construction in zip code 06331 both warrant professional radon testing, especially those with basements or crawl spaces.

5.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Canterbury, CT Radon Mitigation

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

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Canterbury, CT Radon Levels

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

Radon LevelCityHome AgeFoundation
5 pCi/L Canterbury, CT 21-50 Years Full Basement

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

Radon FAQ for Canterbury, CT

What is the average radon level in Canterbury, CT?
Based on 1 user-submitted test, the average radon level in Canterbury 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 Canterbury in?
Canterbury and the 06331 zip code are in Windham County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Canterbury?
Radon mitigation in Canterbury 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 Canterbury?
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