Stonington, CT Radon Levels
Check local Stonington radon levels and find certified testing and mitigation professionals to keep your home safe
Stonington, CT Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
New London County, CT
Zip Code
06378
Located in New London County along Connecticut's southeastern coast, Stonington features historic homes and newer coastal developments on glacial deposits over bedrock. With radon testing data limited for zip code 06378, homeowners should conduct individual testing to assess their risk. Connecticut's geological complexity and varied housing stock make radon testing an important safety consideration for all residents.
Stonington, CT Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Stonington?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed New London County Pros
Radon FAQ for Stonington, CT
What EPA Radon Zone is Stonington in?
Stonington and the 06378 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 Stonington?
Radon mitigation in Stonington 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 Stonington?
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.
| 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 |