Johnston, RI Radon Mitigation and Testing

Q: What EPA Radon Zone is Johnston in?

Johnston is in Providence County, EPA Zone 2.

Q: How much does radon mitigation cost in Johnston?

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

Providence County

EPA Zone 2

Positioned in Providence County within the Providence Metro area, Johnston sits on glacial deposits over crystalline bedrock typical of southern New England. With testing data limited for this 02919 zip code community, homeowners should consider individual testing given the region's geological potential for radon.

Johnston, RI Radon Mitigation

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

Johnston, RI Radon Testing

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

Johnston Radon Facts

Key details about the radon risk profile for Johnston and the 02919 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Providence County, RI

Zip Code

02919

Predicted Screening Level

2–4 pCi/L (Zone 2)

Johnston and the 02919 zip code are located in Providence 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 Johnston, RI

What EPA Radon Zone is Johnston in?

Johnston and the 02919 zip code are in Providence 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 Johnston?

Radon mitigation in Johnston 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 Johnston?

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