Holden, MA Radon Mitigation and Testing

Q: What EPA Radon Zone is Holden in?

Holden is in Worcester County, EPA Zone 1.

Q: How much does radon mitigation cost in Holden?

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

Worcester County

EPA Zone 1

Nestled in Worcester County in central Massachusetts, Holden features a mix of historic and contemporary homes built on New England's characteristic glacial till and bedrock formations. With specific radon testing data limited for this Worcester Metro community in zip code 01520, individual home testing becomes particularly important given the region's variable geological conditions.

Holden, MA Radon Mitigation

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

Holden, MA Radon Testing

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

Holden Radon Facts

Key details about the radon risk profile for Holden and the 01520 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Worcester County, MA

Zip Code

01520

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Holden and the 01520 zip code are located in Worcester 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 Holden, MA

What EPA Radon Zone is Holden in?

Holden and the 01520 zip code are in Worcester 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 Holden?

Radon mitigation in Holden 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 Holden?

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