Willoughby, OH Radon Mitigation and Testing

Q: What is the average radon level in Willoughby, OH?

Based on 2 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Willoughby in?

Willoughby is in Lake County, EPA Zone 2.

Q: How much does radon mitigation cost in Willoughby?

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

Lake County

EPA Zone 2

2 user tests

Found in Lake County along Ohio's northern shore within the Cleveland metro area, Willoughby sits on glacial lake deposits that influence local radon patterns. Recent testing shows an average reading of 4.0 pCi/L, right at the EPA action level, with individual homes ranging from 3.0 to 5.0 pCi/L. The community's older housing stock with traditional basements warrants ongoing radon monitoring to protect residents from potential health risks.

4.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Willoughby, OH. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Willoughby, OH Radon Mitigation

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

Willoughby, OH Radon Testing

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

Willoughby, Ohio Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	Willoughby, OH	51-99 Years	Full Basement	Dec 2021
5 pCi/L	Willoughby, OH	0-20 Years	Full Basement	Mar 2019

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

Willoughby Radon Facts

Key details about the radon risk profile for Willoughby and the 44094 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Lake County, OH

Zip Code

44094

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Willoughby and the 44094 zip code are located in Lake 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 Willoughby, OH

What is the average radon level in Willoughby, OH?

Based on 2 user-submitted tests, the average radon level in Willoughby 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 Willoughby in?

Willoughby and the 44094 zip code are in Lake 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 Willoughby?

Radon mitigation in Willoughby 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 Willoughby?

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 Ohio

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

City	Avg User Radon Level	Submissions
Marietta	8.00 pCi/L	5
Cincinnati	5.20 pCi/L	5
Hilliard	11.75 pCi/L	4
Wilmington	5.25 pCi/L	4
Newark	15.00 pCi/L	3
Athens	11.33 pCi/L	3
Findlay	10.33 pCi/L	3
Perrysburg	9.67 pCi/L	3
Powell	8.33 pCi/L	3
Columbus	6.00 pCi/L	3
Chagrin Falls	4.67 pCi/L	3
Hamilton	10.00 pCi/L	2
Chardon	5.50 pCi/L	2
Strongsville	4.50 pCi/L	2
Maineville	10.00 pCi/L	1
Lancaster	9.00 pCi/L	1
West Chester	9.00 pCi/L	1
Amherst	6.00 pCi/L	1
Chillicothe	6.00 pCi/L	1
Lima	5.00 pCi/L	1