Dennis Port, MA Radon Mitigation and Testing

Q: What EPA Radon Zone is Dennis Port in?

Dennis Port is in Barnstable County, EPA Zone 2.

Q: How much does radon mitigation cost in Dennis Port?

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

Dennis Port in Barnstable County occupies Cape Cod's glacial outwash plain, where sandy soils over bedrock typically yield lower radon concentrations. Testing data for the 02639 area is currently limited, but the coastal community's sandy foundation and seasonal housing stock suggest most homes fall within acceptable ranges — though year-round residents should still verify with professional testing.

Dennis Port, MA Radon Mitigation

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

Dennis Port, MA Radon Testing

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

Dennis Port Radon Facts

Key details about the radon risk profile for Dennis Port and the 02639 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Barnstable County, MA

Zip Code

02639

Predicted Screening Level

2–4 pCi/L (Zone 2)

Dennis Port and the 02639 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 Dennis Port, MA

What EPA Radon Zone is Dennis Port in?

Dennis Port and the 02639 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 Dennis Port?

Radon mitigation in Dennis Port 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 Dennis Port?

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