Grand Isle, VT Radon Mitigation and Testing

Q: What is the average radon level in Grand Isle, VT?

Based on 1 user-submitted tests, the average radon level is 7.00 pCi/L.

Q: What EPA Radon Zone is Grand Isle in?

Grand Isle is in Grand Isle County, EPA Zone 3.

Q: How much does radon mitigation cost in Grand Isle?

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

Avg: 7.00 pCi/L

Grand Isle County

EPA Zone 3

1 user test

Grand Isle is located in Grand Isle County, Vermont. With 1 user-submitted readings averaging 7.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 05458 zip code.

7.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Grand Isle, VT Radon Mitigation

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

Grand Isle, VT Radon Testing

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

Grand Isle, Vermont Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
7 pCi/L	Grand Isle, VT	21-50 Years	Full Basement	Sep 2018

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

Grand Isle Radon Facts

Key details about the radon risk profile for Grand Isle and the 05458 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Grand Isle County, VT

Zip Code

05458

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Avg. User Submitted Level

7.00 pCi/L

User Tests Submitted

Grand Isle and the 05458 zip code are located in Grand Isle County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Grand Isle, VT

What is the average radon level in Grand Isle, VT?

Based on 1 user-submitted test, the average radon level in Grand Isle is 7.00 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 Grand Isle in?

Grand Isle and the 05458 zip code are in Grand Isle County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Grand Isle?

Radon mitigation in Grand Isle 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 Grand Isle?

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 Vermont

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Stowe	13.00 pCi/L	2
Wilmington	8.50 pCi/L	2