Shirley, MA Radon Mitigation and Testing

Q: What is the average radon level in Shirley, MA?

Based on 1 user-submitted tests, the average radon level is 1.00 pCi/L.

Q: What EPA Radon Zone is Shirley in?

Shirley is in Middlesex County, EPA Zone 1.

Q: How much does radon mitigation cost in Shirley?

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

Avg: 1.00 pCi/L

Middlesex County

EPA Zone 1

1 user test

Situated in Middlesex County within the Boston Metro area, Shirley occupies EPA Zone 1 territory where New England's granite bedrock and glacial deposits create elevated radon risk throughout the region. The community's housing stock reflects typical Massachusetts construction, with many homes featuring full basements where radon can accumulate. Since testing data for ZIP code 01464 is limited, professional radon testing remains essential for local homeowners.

1.00

pCi/L average

Below EPA Action Level

Based on 1 user-submitted radon test for homes in Shirley, MA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Shirley, MA Radon Mitigation

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

Shirley, MA Radon Testing

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

Shirley, Massachusetts Radon Levels

User-submitted radon test readings from homes in the Shirley area.

Radon Level	City	Home Age	Foundation	Submitted
1 pCi/L	Shirley, MA	0-20 Years	Full Basement	Feb 2026

Have a radon test result for Shirley? Submit your reading to help other homeowners.

Shirley Radon Facts

Key details about the radon risk profile for Shirley and the 01464 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Middlesex County, MA

Zip Code

01464

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

1.00 pCi/L

User Tests Submitted

Shirley and the 01464 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 Shirley, MA

What is the average radon level in Shirley, MA?

Based on 1 user-submitted test, the average radon level in Shirley is 1.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is Shirley in?

Shirley and the 01464 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 Shirley?

Radon mitigation in Shirley 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 Shirley?

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