Needham, MA Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 6.00 pCi/L.

Q: What EPA Radon Zone is Needham in?

Needham is in Norfolk County, EPA Zone 2.

Q: How much does radon mitigation cost in Needham?

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

Avg: 6.00 pCi/L

Norfolk County

EPA Zone 2

1 user test

Located in Norfolk County within the Boston Metro, Needham shows an average radon level of 6.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. The town's glacial till soils and granite bedrock create favorable conditions for radon production, making testing particularly important for homes in zip code 02492.

6.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Needham, MA Radon Mitigation

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

Needham, MA Radon Testing

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

Needham, Massachusetts Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
6 pCi/L	Needham, MA	0-20 Years	No Basement/All Slab	Jul 2020

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

Needham Radon Facts

Key details about the radon risk profile for Needham and the 02492 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Norfolk County, MA

Zip Code

02492

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

6.00 pCi/L

User Tests Submitted

Needham and the 02492 zip code are located in Norfolk 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 Needham, MA

What is the average radon level in Needham, MA?

Based on 1 user-submitted test, the average radon level in Needham is 6.00 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 Needham in?

Needham and the 02492 zip code are in Norfolk 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 Needham?

Radon mitigation in Needham 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 Needham?

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