West Dennis, MA Radon Mitigation and Testing

Q: What EPA Radon Zone is West Dennis in?

West Dennis is in Barnstable County, EPA Zone 2.

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

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

This Cape Cod Metro community in Barnstable County currently has limited radon testing data, though Cape Cod's sandy glacial outwash deposits typically produce lower radon levels than mainland Massachusetts. West Dennis homeowners in the 02670 area benefit from the peninsula's unique geology, yet testing remains advisable given the prevalence of basement and crawl space construction. Individual properties may still experience elevated levels depending on specific soil conditions and home construction details.

West Dennis, MA Radon Mitigation

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

West Dennis, MA Radon Testing

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

West Dennis Radon Facts

Key details about the radon risk profile for West Dennis and the 02670 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Barnstable County, MA

Zip Code

02670

Predicted Screening Level

2–4 pCi/L (Zone 2)

West Dennis and the 02670 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 West Dennis, MA

What EPA Radon Zone is West Dennis in?

West Dennis and the 02670 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 West Dennis?

Radon mitigation in West Dennis 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 West Dennis?

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