Top 5 Radon Hotspots in the Worcester Metro Area
Cities with the highest average user-submitted radon readings in the Worcester Metro metropolitan area.
| Rank | City | Avg. Radon Level | Tests |
|---|---|---|---|
| 1 | Douglas |
12.00 pCi/L
|
4 |
| 2 | Worcester |
17.70 pCi/L
|
3 |
| 3 | Shrewsbury |
10.00 pCi/L
|
2 |
| 4 | Webster |
6.50 pCi/L
|
2 |
| 5 | Northborough |
6.00 pCi/L
|
2 |
Other Metro Areas in Massachusetts
Explore radon data for other metropolitan regions across the state.
Cities in the Worcester Metro Area
28 cities and towns in the Worcester Metro metropolitan area with user-submitted radon data.
28 cities
Princeton
Zone 1
20.0
pCi/L
Above EPA action level
Worcester
Zone 1
17.7
pCi/L
Above EPA action level
Clinton
Zone 1
17.0
pCi/L
Above EPA action level
Uxbridge
Zone 1
16.0
pCi/L
Above EPA action level
Charlton
Zone 1
13.0
pCi/L
Above EPA action level
South Grafton
Zone 1
13.0
pCi/L
Above EPA action level
Douglas
Zone 1
12.0
pCi/L
Above EPA action level
Fitchburg
Zone 1
12.0
pCi/L
Above EPA action level
Harvard
Zone 1
12.0
pCi/L
Above EPA action level
Grafton
Zone 1
11.0
pCi/L
Above EPA action level
Shrewsbury
Zone 1
10.0
pCi/L
Above EPA action level
Athol
Zone 1
9.0
pCi/L
Above EPA action level
Leicester
Zone 1
9.0
pCi/L
Above EPA action level
Auburn
Zone 1
7.0
pCi/L
Above EPA action level
Hopedale
Zone 1
7.0
pCi/L
Above EPA action level
Upton
Zone 1
7.0
pCi/L
Above EPA action level
Whitinsville
Zone 1
7.0
pCi/L
Above EPA action level
Webster
Zone 1
6.5
pCi/L
Above EPA action level
Northborough
Zone 1
6.0
pCi/L
Above EPA action level
Westborough
Zone 1
6.0
pCi/L
Above EPA action level
Gardner
Zone 1
5.0
pCi/L
Above EPA action level
Hubbardston
Zone 1
5.0
pCi/L
Above EPA action level
Milford
Zone 1
5.0
pCi/L
Above EPA action level
Lancaster
Zone 1
5.0
pCi/L
Above EPA action level
Rutland
Zone 1
4.5
pCi/L
Above EPA action level
Millbury
Zone 3
4.0
pCi/L
Below EPA action level
Southbridge
Zone 3
4.0
pCi/L
Below EPA action level
Winchendon
Zone 3
4.0
pCi/L
Below EPA action level
Radon Mitigation Professionals Serving the Worcester Metro Area
Licensed contractors who serve this metro area.
| Company | |
|---|---|
| APEX Water Pump & Filter Co. Inc | |
| City of Worcester | |
| Dana Wilson Home Inspection Services LLC | |
| Eagle Environmental Inc | |
| Radon Systems LLC | |
| Walter Irwin Radon Mitigation |
Frequently Asked Questions about Radon in the Worcester Metro Area
Common questions about radon testing, mitigation costs, and health risks for homeowners in the Worcester Metro metropolitan area.
Why are radon levels so high in the Worcester Metro area?
Radon levels in the Worcester Metro area are driven by the local soil and bedrock composition, which contains naturally occurring uranium. As uranium decays, it produces radon gas that migrates upward through the soil and enters homes through foundation cracks, sump pits, and gaps around pipes. Homes with basements and crawlspaces are especially susceptible because these below-grade spaces are in direct contact with the soil where radon concentrations are highest.
How much does radon mitigation cost in Worcester Metro?
Professional radon mitigation in the Worcester Metro metropolitan area typically costs between $800 and $2,500, depending on the size and construction of your home. The most common approach is an active sub-slab depressurization system, which a certified contractor can usually install in a single day. Ongoing energy costs for the mitigation fan are minimal—roughly $5–$10 per month—and most systems reduce radon levels by 90% or more.
Are landlords in Massachusetts required to test for radon?
Radon testing and disclosure requirements vary by state and municipality. Some Massachusetts jurisdictions require landlords to disclose known radon levels or test results, while others have no mandate. Regardless of local law, the EPA recommends radon testing for all residential properties—including rentals—since radon is the second leading cause of lung cancer in the United States.
Can I sell a house with high radon levels in the Worcester Metro area?
Yes. High radon levels do not prevent a home sale, but buyers in the Worcester Metro market routinely request radon testing during the inspection period. If levels exceed 4.0 pCi/L, the buyer may negotiate for the seller to install a mitigation system before closing. Having a radon mitigation system already in place can actually be a selling point, demonstrating proactive home maintenance and providing documented proof of safe indoor air quality.