Grafton, VT Radon Mitigation and Testing

Q: What EPA Radon Zone is Grafton in?

Grafton is in Windham County, EPA Zone 2.

Q: How much does radon mitigation cost in Grafton?

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

Windham County

EPA Zone 2

Positioned in Windham County within EPA Zone 2, Grafton sits atop metamorphic bedrock where schist and granite formations create moderate radon potential throughout southern Vermont. Testing data for zip code 05146 is currently limited, making individual home testing essential for residents of this historic village. The community's 18th and 19th-century homes with stone foundations and traditional New England basements may be particularly susceptible to radon infiltration.

Grafton, VT Radon Mitigation

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

Grafton, VT Radon Testing

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

Grafton Radon Facts

Key details about the radon risk profile for Grafton and the 05146 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Windham County, VT

Zip Code

05146

Predicted Screening Level

2–4 pCi/L (Zone 2)

Grafton and the 05146 zip code are located in Windham County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Grafton, VT

What EPA Radon Zone is Grafton in?

Grafton and the 05146 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 Grafton?

Radon mitigation in Grafton 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 Grafton?

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