Eastham, MA Radon Mitigation and Testing

Q: What EPA Radon Zone is Eastham in?

Eastham is in Barnstable County, EPA Zone 2.

Q: How much does radon mitigation cost in Eastham?

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

Barnstable County

EPA Zone 2

Located on Barnstable County's outer Cape Cod, Eastham sits on glacial outwash deposits and sandy soils that typically produce lower radon levels than inland Massachusetts communities. Testing data for zip code 02642 within this Cape Cod Metro community remains limited, though the area's coastal geology suggests moderate radon potential. Individual property testing can help establish baseline readings for informed decision-making.

Eastham, MA Radon Mitigation

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

Eastham, MA Radon Testing

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

Eastham Radon Facts

Key details about the radon risk profile for Eastham and the 02642 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Barnstable County, MA

Zip Code

02642

Predicted Screening Level

2–4 pCi/L (Zone 2)

Eastham and the 02642 zip code are located in Barnstable 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 Eastham, MA

What EPA Radon Zone is Eastham in?

Eastham and the 02642 zip code are in Barnstable 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 Eastham?

Radon mitigation in Eastham 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 Eastham?

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