Winchester, OR Radon Mitigation and Testing

Q: What EPA Radon Zone is Winchester in?

Winchester is in Douglas County, EPA Zone 3.

Q: How much does radon mitigation cost in Winchester?

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

Douglas County

EPA Zone 3

Situated in Douglas County within Oregon's Umpqua River valley, Winchester is positioned among volcanic soils and sedimentary rock formations that generally produce lower radon levels. However, testing data for this small community in zip code 97495 is currently limited, making individual home testing advisable. Local geological variations and different foundation types can still create pockets of elevated radon even in typically low-risk areas.

Winchester, OR Radon Mitigation

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

Winchester, OR Radon Testing

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

Winchester Radon Facts

Key details about the radon risk profile for Winchester and the 97495 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Douglas County, OR

Zip Code

97495

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Winchester and the 97495 zip code are located in Douglas County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Winchester, OR

What EPA Radon Zone is Winchester in?

Winchester and the 97495 zip code are in Douglas County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Winchester?

Radon mitigation in Winchester 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 Winchester?

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 Oregon

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Corvallis	5.60 pCi/L	5
Astoria	9.25 pCi/L	4
La Grande	10.67 pCi/L	3
Bend	3.33 pCi/L	3
Salem	9.00 pCi/L	2
Eugene	7.00 pCi/L	2
Medford	7.00 pCi/L	1
Dundee	6.00 pCi/L	1
Ashland	4.00 pCi/L	1
Portland	4.00 pCi/L	1
Lincoln City	No submissions	0
West Linn	No submissions	0