Exeter, RI Radon Mitigation and Testing

Q: What EPA Radon Zone is Exeter in?

Exeter is in Washington County, EPA Zone 1.

Q: How much does radon mitigation cost in Exeter?

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

Washington County

EPA Zone 1

Rural Washington County town Exeter sits in Rhode Island's western interior, where glacial till deposits over granite bedrock create favorable conditions for radon gas production and accumulation. The area's housing includes historic farmhouses, newer suburban developments, and seasonal properties, many with full basement foundations common throughout New England. Although radon testing data for this 02822 Providence Metro area remains sparse, residents should consider professional testing given the region's geological characteristics.

Exeter, RI Radon Mitigation

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

Exeter, RI Radon Testing

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

Exeter Radon Facts

Key details about the radon risk profile for Exeter and the 02822 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Washington County, RI

Zip Code

02822

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Exeter and the 02822 zip code are located in Washington County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Exeter, RI

What EPA Radon Zone is Exeter in?

Exeter and the 02822 zip code are in Washington 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 Exeter?

Radon mitigation in Exeter 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 Exeter?

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 Rhode Island

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

City	Avg User Radon Level	Submissions
Providence	11.00 pCi/L	2
Westerly	8.00 pCi/L	2
Portsmouth	4.50 pCi/L	2