Randolph, MA Radon Mitigation and Testing

Q: What EPA Radon Zone is Randolph in?

Randolph is in Norfolk County, EPA Zone 2.

Q: How much does radon mitigation cost in Randolph?

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

Norfolk County

EPA Zone 2

Part of the Boston Metro area in Norfolk County, Randolph in zip code 02368 currently lacks comprehensive radon testing data despite New England's known radon potential. The region's glacial till deposits over granite bedrock, combined with typical Massachusetts housing stock featuring basements, create conditions favorable for radon accumulation. Homeowners in this established suburban community should prioritize professional radon testing to ensure indoor air safety.

Randolph, MA Radon Mitigation

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

Randolph, MA Radon Testing

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

Randolph Radon Facts

Key details about the radon risk profile for Randolph and the 02368 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Norfolk County, MA

Zip Code

02368

Predicted Screening Level

2–4 pCi/L (Zone 2)

Randolph and the 02368 zip code are located in Norfolk 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 Randolph, MA

What EPA Radon Zone is Randolph in?

Randolph and the 02368 zip code are in Norfolk 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 Randolph?

Radon mitigation in Randolph 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 Randolph?

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 Massachusetts

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

City	Avg User Radon Level	Submissions
Littleton	9.40 pCi/L	5
Gloucester	8.40 pCi/L	5
Florence	7.40 pCi/L	5
Douglas	12.00 pCi/L	4
Weymouth	8.50 pCi/L	4
Mashpee	5.00 pCi/L	4
Natick	5.00 pCi/L	4
Worcester	17.67 pCi/L	3
Attleboro	10.00 pCi/L	3
Stoneham	9.67 pCi/L	3
Hopkinton	9.33 pCi/L	3
Medford	8.00 pCi/L	3
Boxford	6.67 pCi/L	3
Reading	5.67 pCi/L	3
Haverhill	5.00 pCi/L	3
Melrose	5.00 pCi/L	3
Somerville	4.33 pCi/L	3
Woburn	19.00 pCi/L	2
Marlborough	13.50 pCi/L	2
Cohasset	11.50 pCi/L	2