Ashby, MA Radon Levels

Q: What EPA Radon Zone is Ashby in?

Ashby is in Middlesex County, EPA Zone 1.

Q: Why are radon readings shown from areas near Ashby?

No homeowner radon tests have been submitted for Ashby yet, so readings from the closest cities and the Middlesex County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Ashby?

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

Check local Ashby radon levels and find certified testing and mitigation professionals to keep your home safe

Ashby, MA Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Middlesex County, MA

Zip Code 01431

Nestled in Middlesex County as part of the greater Boston Metro region, Ashby features the glacial soils and granite bedrock characteristic of north-central Massachusetts. Current radon testing data for the 01431 area is limited, underscoring the importance of individual home testing. The community's mix of historic and modern homes with full basements creates conditions where radon accumulation should be evaluated through professional testing.

7.28

pCi/L area average

Above EPA Action Level

Middlesex County average: 7.28 pCi/L, based on 90 user-submitted tests across 46 cities in the county. No homeowner readings have been submitted for Ashby itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Ashby, MA Radon Mitigation

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

Need Radon Mitigation or Testing in Ashby?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Middlesex County Pros

1-800-299-3578 978-208-3171 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Ashby, MA

No homeowner tests have been submitted for Ashby yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Fitchburg	6.6 mi	12.00 pCi/L	1
Shirley	11.1 mi	1.00 pCi/L	1
Gardner	11.2 mi	5.00 pCi/L	2
Pepperell	11.4 mi	7.00 pCi/L	3
Winchendon	11.7 mi	4.00 pCi/L	1
Groton	13.8 mi	5.00 pCi/L	1
Princeton	15.7 mi	20.00 pCi/L	1
Hubbardston	16.0 mi	5.00 pCi/L	2

Middlesex County Radon Profile

The bedrock and soils beneath Middlesex County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 46 cities in Middlesex County average 7.28 pCi/L across 90 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Middlesex County.

Radon FAQ for Ashby, MA

What EPA Radon Zone is Ashby in?

Ashby and the 01431 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.

Why are radon readings shown from areas near Ashby?

No homeowner radon tests have been submitted for Ashby yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Middlesex County average—are the best available indicator of local conditions until Ashby homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Ashby?

Radon mitigation in Ashby 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 Ashby?

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.