Winchendon, MA Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Winchendon in?

Winchendon is in Worcester County, EPA Zone 1.

Q: How much does radon mitigation cost in Winchendon?

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

Avg: 4.00 pCi/L

Worcester County

EPA Zone 1

1 user test

Part of the Worcester Metro area, Winchendon in Worcester County has recorded an average radon level of 4.0 pCi/L, right at the EPA action threshold, indicating the need for continued monitoring. This north-central Massachusetts community sits atop granite and gneiss bedrock typical of New England, where crystalline geology creates elevated radon potential. Homeowners in zip code 01475 should maintain regular testing schedules and consider mitigation if readings trend upward.

4.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Winchendon, MA Radon Mitigation

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

Winchendon, MA Radon Testing

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

Winchendon, Massachusetts Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Winchendon, MA	51-99 Years	Partial Basement	Mar 2025

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

Winchendon Radon Facts

Key details about the radon risk profile for Winchendon and the 01475 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Worcester County, MA

Zip Code

01475

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Winchendon and the 01475 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 Winchendon, MA

What is the average radon level in Winchendon, MA?

Based on 1 user-submitted test, the average radon level in Winchendon is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Winchendon in?

Winchendon and the 01475 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 Winchendon?

Radon mitigation in Winchendon 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 Winchendon?

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