Billerica, MA Radon Mitigation and Testing

Q: What EPA Radon Zone is Billerica in?

Billerica is in Middlesex County, EPA Zone 1.

Q: How much does radon mitigation cost in Billerica?

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

Middlesex County

EPA Zone 1

Located in Middlesex County northwest of Boston, Billerica sits on glacial till over granite bedrock typical of eastern Massachusetts. While radon testing data for the 01821 zip code is limited, the crystalline bedrock suggests moderate radon potential despite the EPA Zone 1 classification. This Boston Metro community's mix of colonial-era homes and modern subdivisions both warrant testing, as granite foundations can concentrate naturally occurring radon.

Billerica, MA Radon Mitigation

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

Billerica, MA Radon Testing

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

Billerica Radon Facts

Key details about the radon risk profile for Billerica and the 01821 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Middlesex County, MA

Zip Code

01821

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Billerica and the 01821 zip code are located in Middlesex County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Billerica, MA

What EPA Radon Zone is Billerica in?

Billerica and the 01821 zip code are in Middlesex County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Billerica?

Radon mitigation in Billerica 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 Billerica?

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