Fairfield, CT Radon Levels
Check local Fairfield radon levels and find certified testing and mitigation professionals to keep your home safe
Fairfield, CT Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Fairfield County, CT
Zip Code
06824
Located in Fairfield County along Connecticut's coast, this 06824 zip code area sits in a region where glacial deposits over crystalline bedrock create moderate radon potential. The community's mix of historic colonial homes and modern construction, many with full basements, can trap radon gas effectively. Testing data remains limited, making individual home assessment particularly important for residents.
Fairfield, CT Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Fairfield, CT
What EPA Radon Zone is Fairfield in?
Fairfield and the 06824 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 Fairfield?
Radon mitigation in Fairfield 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 Fairfield?
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 |